2021 Chevrolet Suburban Owner Complaints

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving approximately 75-80 mph, the lifter collapsed and the contact heard the engine rattling. The contact pulled over and contacted the manufacturer, who provided a tow to the dealer. The dealer diagnosed the vehicle with a bent push rod and that the lifter had collapsed. The contact related the failure to the Technical Service Bulletin number: PIP5776C. The vehicle was repaired. The failure mileage was 6,600.

5/25/2021

Purchased the new 2021 Chevrolet Suburban, 4 miles on odometer and left the dealer. Less than 20 minutes from dealer AC stopped working. Called dealer thinking it was small error. While on phone I looked under the vehicle which was now emitting foul burning odors. Noticed a very large amount of oil(1quart+) dripping from everywhere from engine to exhaust mid way down vehicle,oil cooler line was blown off. Towed newvehicle to dealer. Chevrolet wants me to keep this vehicle even though there was a TSB issued last year about this same issue. Chevrolet was supposed to fix before shipping vehicle and demanded dealers to do the same but did not follow its own advice. Now they want me the consumer to take a vehicle that now has 17 miles on it that has been repaired even though the issue was supposed to be remedied by manufacturer. GM/Chevrolet considers this a new vehicle even after major service for a known issue and wants me to marry this vehicle for 6 years of payments. I put down $22500 cash and this is the slap I get as consumer!

6/24/2021

Drove up to a stoplight 4th car in a turn lane, came to complete stop. Some cars closed ranks a little further so i released my foot off the brake and moved up a few more feet and stopped again. The car then accelerated with brake fully depressed and wouldn't stop. I then put gear to neutral Tac was very high maybe 5000. Put car into park and then turned off the engine. Restarted car and continued on my way. Contacted Chevrolet and my dealership for a service diagnosis coming up July19,2021. No image to anyone but I have heard of this problem before a malfunction of electronics controlling the drivetrain. Can something be done before any injury or death occurs.

7/13/2021

The lifter rods failed on my vehicle that has approximately 8,000 miles on it. The dealer said that this is a known issue and that there is a service bulletin out for it.

9/1/2021

My vehicle died unexpectedly in the middle of the road while backing out of my driveway with cars coming and going around me. It would not start up again nor could I put it in neutral to move it out of the way. I’ve learned my 2021 Suburban has a defective high pressure fuel modular. Also learned there is a parts shortage as well.

2/10/2023

On 27 Feb 2023 the vehicle started as usual. After parking and letting the engine idle while I assisted my elderly mother into the car, the vehicle unexpectedly stopped running. Several attempts were made to restart the car, but it only sputtered for a few seconds as if it were out of fuel. I then called GM roadside assistance and the vehicle was towed to Sandy Sansing Southern Chevrolet in Foley Alabama. My service Advisor Ronny advised me that this was a common failure of the Fuel Pump Power Control Module, however, there is no current recall. Except I did find a recall for a similar issue for other GM vehicles (Product Safety Recall N212332040 Stall While Driving) The dealership currently has 25 other vehicles awaiting a new module which could take up to 2 months.

3/3/2023

This evening while driving the windshield wipers started (while the wipers were in the off position). When using the turning signal it speeds up to approximately 3 times the normal speed. The display says the back hatch is open and the cargo light is on (the back hatch is closed). We turned off the car multiple times and the conditions persist.

6/10/2021

We have had several incidents of issues with the engine and electrical system. There are as follows: - NO CHECK ENGINE LIGHTS and engine failed. - Engine continues to be sluggish and hesitant. Headlights do not come on when in "auto" and it is dark outside. - Doors lock with the keys inside and the engine is off. - Keys are showing in sleep mode or not present when they are present. The engine went down on May 6, 2021 and I was on the highway with 2 of my children. I could not accelerate. There was traffic and could not keep up. I was able to get the truck to the delearship to have inspected and repair attempted. NO check engine lights.

9/14/2021

WE WERE STOPPED AT A RED LIGHT ON FLORIDA STATE ROAD 54 TURN LANE TO GO ON US 75 WHEN THE OTHER CAR REAR ENDED US AND DROVE US INTO THE CAR IN FRONT OF US. NO AIR BAGS DEPLOYED. FLORIDA HIGHWAY PATROL CRASH NUMBER 88482185. WE ONLY HAD THE VEHICLE FOR 10 DAYS.

4/13/2021

Purchased the new 2021 Chevrolet Suburban, 4 miles on odometer and left the dealer. Less than 20 minutes from dealer AC stopped working. Called dealer thinking it was small error. While on phone I looked under the vehicle which was now emitting foul burning odors. Noticed a very large amount of oil(1quart+) dripping from everywhere from engine to exhaust mid way down vehicle,oil cooler line was blown off. Towed newvehicle to dealer. Chevrolet wants me to keep this vehicle even though there was a TSB issued last year about this same issue. Chevrolet was supposed to fix before shipping vehicle and demanded dealers to do the same but did not follow its own advice. Now they want me the consumer to take a vehicle that now has 17 miles on it that has been repaired even though the issue was supposed to be remedied by manufacturer. GM/Chevrolet considers this a new vehicle even after major service for a known issue and wants me to marry this vehicle for 6 years of payments. I put down $22500 cash and this is the slap I get as consumer!

6/24/2021

While driving, I received a notice identifying a problem with the ESC system and that there was a brake system failure. I have received an advanced diagnostics alert about the antilock braking system. the vehicle was difficult to stop and required excessive pressure on the brake pedal.

5/4/2022

I was driving on the freeway about 65 mph on Saturday June 18. In a sudden instant, there was a message on my dash "brake module failure" and "speed limited to 62 mph". Also warning message that "forward collision warning was off" , etc. The ABS light, the "check brakes light", and the check engine light all were on. Also, the power brakes went completely out and to stop I had to press really hard with manual brakes. I don't think a small framed person would have been able to stop and if I had been at a moment where I needed to stop quickly I don't think I would have been able to stop had there been a need to stop quickly. The dealer tells me that the brake master cylinder failed. The car has 43,000 miles and has been well maintained.

6/21/2022

WE WERE STOPPED AT A RED LIGHT ON FLORIDA STATE ROAD 54 TURN LANE TO GO ON US 75 WHEN THE OTHER CAR REAR ENDED US AND DROVE US INTO THE CAR IN FRONT OF US. NO AIR BAGS DEPLOYED. FLORIDA HIGHWAY PATROL CRASH NUMBER 88482185. WE ONLY HAD THE VEHICLE FOR 10 DAYS.

4/13/2021

Car suddenly swerved, loud knocking started. Multiple system failures started flashing. Forward collision, ECS, traction control, the car was vibrating, jerky. I have multiple videos as well. The dealership literally told me they’d seen a ton of these when I called immediately and then told me to keep driving because the damage was done and if the engine died well then it’s under warranty. I have 3 children under 5 and that is NOT an appropriate answer when I asked about it being safe to drive considering it’s jerky/shaking/knocking, and has multiple systems down. I’ve also googled and joined forums and this is apparently a common issue in the 2021 V8s and Chevy refuses to issue a recall. Would be more than happy to provide videos as well it won’t let me upload them with the photos. Was told it could be weeks before they even have parts

11/13/2021

My seat belt recall was not done said they did but did not do it ask them when were going to do it would never call or answer me need them to complete there recall on rear seat defective

9/21/2021

I'm writing to complain about the proposed temporary resolution of the recall. I received a letter today advising me that repair parts were unavailable and that I should simply not use the third row seats until the inspection/repairs are completed. Like many people who own Suburbans, I bought this vehicle because we are a family of six. This is the only vehicle in our home that can fit both adults and all four children. Not using the third row is simply not an option for us. This is an unacceptable solution, no matter how temporary.

10/4/2022

I WAS INVOLVED IN A 40 MPH FRONTAL IMPACT COLLISION WITH ANOTHER VEHICLE. THE INITIAL IMPACT OCCURRED ON THE DRIVER SIDE FRONT CORNER OF THE VEHICLE. DURING THE INITIAL COLLISION ME HEAD SWUNG SIDEWAY STRIKING THE B POST WINDOW AREA AND KNOCKED ME UNCONSCIOUS FOR A SHORT TIME. I THEN T-BONED A TRUCK AND FINALLY CAME TO REST AGAINST ANOTHER VEHICLE. AT NO TIME DID MY AIRBAGS (FRONT OR SIDE) DEPLOY. NOR HAS MY VEHICLE EVEN REGISTERED THAT I WAS INVOLVED IN A COLLISION. I REQUIRED MEDICAL ATTENTION AND WAS TRANSPORT TO THE HOSPITAL. AFTER EXAMINATION AND SCANNING/XRAYS, ETC. I HAD RECEIVED A CONCUSSION. I HAVE THE POLICE REPORT AS WELL AS MORE PICTURES IF REQUIRED. THE IMPACT WAS STRONG ENOUGH TO BEND THE FRAME ON MY VEHICLE.

5/11/2021

SERVICE SAFETY RESTRAINT SYSTEM message will often and randomly display, stay illuminated for random lengths of time, and then clear. Dealer Service centers are not taking the random/intermittent fault of the Safety Restraint System seriously. Passengers are at risk (unknow severity, assume the worst) due to a Faulty Safety Restraint System.

2/7/2023

The contact owns a 2021 Chevrolet Suburban. The contact stated that while driving 20 MPH and approaching a light, there was an abnormal ticking and knocking sound coming from the vehicle. There were no warning lights illuminated. The contact stated that the vehicle failed to accelerate above 25 MPH. The contact stated that the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The vehicle was taken to an independent mechanic who determined that the vehicle had experienced engine failure. The vehicle was taken to an unknown local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted, but no further assistance was provided. The failure mileage was 132,000.

5/5/2025

The contact owns a 2021 Chevrolet Suburban. The contact stated that while his wife was driving at undisclosed speeds, there was an abnormally loud banging sound coming from the engine compartment. The contact stated that the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the rods were bent, and the lifters needed to be replaced. The vehicle was repaired. The manufacturer was not contacted. The contact called the warranty company, who confirmed there was no repair coverage on the vehicle for the failure. The failure mileage was approximately 109,069.

5/21/2025

With cruise control activated, at least 10 times since I bought this expensive vehicle the automated emergency braking activated at highway speeds - causing the vehicle to full brake without warning and nearly causing an accident each time (handling risk and risk of being impacted from behind by a following vehicle). I have formally reported this issue to dealers in MN and MT, and they only thing they said was they could not duplicate the condition during brief test rides and this was not a know problem. I personally know this was a known problem and GM did a safety recall for this condition on MY15-20 Suburbans. This condition is definitely an unreasonable risk to motor vehicle safety. In additional, the original tires supplied by GM (Firestone) failed under normal driving conditions after only about 35,000 miles, and both GM and Firestone denied there was any warranty coverage. Since then, new Les Schwab tires failed at about the same mileage. Something is obviously not right with this vehicle, and this condition is also an unreasonable risk to motor vehicle safety. Finally, last week my front passenger wheel cracked. I have not hit anything significantly hard with that wheel - but it is nonetheless cracked. This is also obviously defective and an unreasonable risk to motor vehicle safety.

9/19/2022

Rims keep cracking on the inside where the tire is sealed. This has happen a total of three times to both front and rear passenger side. Tire pressures are 36psi as recommended by manufacturer. No major pot holes or other road hazards have been hit.

10/16/2024

While night driving driver noticed the driver side headlight completly pointing down providing no visibility. Vehicle was brought into GM dealership where is was discovered the Driver LED headlight adjuster screw broken causing a safety issue, where the light beam pointed down. Vehicle light assembly is currently being inspected for replacement under manufacture warranty under 36,000 miles.

10/16/2023

The headlight adjuster failed. As a result, the headlight points straight down creating a safety issue at night. I have read online this is a common problem on suburbans and tahoes. This happened on my car around 60k miles and only ~3 years.

10/25/2024

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 45-55 MPH, the vehicle lost motive power inadvertently. There was no warning light illuminated. The contact was able to veer to the side of the road. The vehicle failed to restart and was towed to the dealer, where it was diagnosed that the fuel pump power control module had failed and needed to be replaced. Additionally, the dealer informed the contact that the battery needed to be replaced. The contact related the failure to NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline) however, the dealer informed the contact that the VIN was not included. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 90,000.

12/20/2023

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 5 MPH up the driveway, the vehicle lost motive power. The check engine warning light was illuminated. The contact was able to restart the vehicle; however, while the vehicle was idling, the engine shut off upon depressing the accelerator pedal. The vehicle was towed to the dealer, where it was determined that the fuel pump power control module had failed and needed to be replaced; however, the part was on a national backorder. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline). The manufacturer was notified of the failure and informed the contact that the vehicle could not be repaired under the recall because the VIN was not included. The failure mileage was approximately 46,000.

2/1/2024

2021 CHEVROLET SUBURBAN. CONSUMER WRITES IN REGARD TO SAFETY RECALL ADVISING THE THIRD ROW SEATING POSITION BEING UNSAFE.

12/5/2022

Second row drivers side seat headrest latching mechanism failed. The head rest will not stay in the upright position and is a safety hazard if someone is sitting in the seat as it hits the passenger in the back of the neck.

8/18/2023

WE WERE STOPPED AT A RED LIGHT ON FLORIDA STATE ROAD 54 TURN LANE TO GO ON US 75 WHEN THE OTHER CAR REAR ENDED US AND DROVE US INTO THE CAR IN FRONT OF US. NO AIR BAGS DEPLOYED. FLORIDA HIGHWAY PATROL CRASH NUMBER 88482185. WE ONLY HAD THE VEHICLE FOR 10 DAYS.

4/13/2021

The fuel pump power control module caused the fuel pump to fail and resulted in unexpected engine stall. The issue cause me and my 4 children to be stuck in the middle of the road waiting for a tow truck for over 3 hours. The vehicle could only be put in neutral while the car was on. Since I couldn’t start my car I could not put it in neutral to move the vehicle out of 2 way traffic. We want the issue confirmed by the dealership but the police who aided me and my children inspected the vehicle and recommend getting the fuel pump look at. No warnings were displayed.

11/6/2023

We were traveling approximately 30 mph approaching an intersection of a 5 lane road. A vehicle in front t of us had pulled into the turn lane. As we approached the vehicle that was already completely in the other lane, our car suddenly braked to a complete stop even though my foot was only on the accelerator as it is a 40 mph speed zone.

8/5/2022

With cruise control activated, at least 10 times since I bought this expensive vehicle the automated emergency braking activated at highway speeds - causing the vehicle to full brake without warning and nearly causing an accident each time (handling risk and risk of being impacted from behind by a following vehicle). I have formally reported this issue to dealers in MN and MT, and they only thing they said was they could not duplicate the condition during brief test rides and this was not a know problem. I personally know this was a known problem and GM did a safety recall for this condition on MY15-20 Suburbans. This condition is definitely an unreasonable risk to motor vehicle safety. In additional, the original tires supplied by GM (Firestone) failed under normal driving conditions after only about 35,000 miles, and both GM and Firestone denied there was any warranty coverage. Since then, new Les Schwab tires failed at about the same mileage. Something is obviously not right with this vehicle, and this condition is also an unreasonable risk to motor vehicle safety. Finally, last week my front passenger wheel cracked. I have not hit anything significantly hard with that wheel - but it is nonetheless cracked. This is also obviously defective and an unreasonable risk to motor vehicle safety.

9/19/2022

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 15 MPH, the vehicle lost motive power and stalled without warning. The contact was unable to restart the vehicle. The vehicle was towed to the dealer, and the dealer stated that the fuel control module needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and stated that the part to repair the vehicle was not available. The failure mileage was 30,000. The VIN was not available.

3/13/2023

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer where it was diagnosed with fuel pump power control module failure. The contact was informed that the fuel pump power control module needed to be replaced. The vehicle was not repaired. The contact was informed that the parts to repair the vehicle had been ordered. The manufacturer was not made aware of the failure. The failure mileage was approximately 54,000.

2/24/2025

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving at an undisclosed speed, the Forward Collision Avoidance system activated and abruptly applied the brakes, dramatically reducing the speed of the vehicle. Later, the contact stated that while driving at an undisclosed speed with the Adaptive Cruise Control activated, the vehicle inadvertently accelerated, requiring the contact to depress the brake pedal to avoid a collision. The vehicle returned to normal functionality, but the failure became a regular occurrence. The Forward Collision Avoidance warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the Forward Collision Avoidance warning light and the Adaptive Cruise Control module. The vehicle was repaired, but the failure reoccurred. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 28,000.

6/14/2024

I was driving when I received messages saying service ESC, Forward collision System Unavailable, & Service Traction Control. The vehicle began to shake hard when I applied brakes, had loss of power when pressing the gas pedal, and sounded like metal grinding. All of this put my children & I at risk as we were on interstate 35 with cars flying past us and I’m losing power. Initially the spark plugs and coil was were changed to no repair. It was towed to a dealership where they confirmed the lifter & cam failed which put metal in the oil. My only option is a full engine replacement costing 20k on a vehicle that’s 4yrs old. It’s not ok that I have to spend that in order to get my 70k car drivable. Im now without a car, still paying a car note, unable to get my kids places, and having to get help from friends all bc GM can’t build a quality vehicle. I also haven’t been able to get a loaner car. This isn’t happening in only the 6.3L. This is a widely known issue with the 5.3L as well. *There were ZERO warning signs that something was wrong. Drive just fine that morning*

9/2/2025

Yesterday marked the 2nd time that the front windshield wipers on my 2021 Chevy Suburban (58k miles) randomly stopped working while driving down the highway in a rainstorm. They would not come out of the resting position regardless on what setting they were put to on the wheel switch. They continued to not work for the hour drive back to my house. The last time this happened all fuses, motor, etc were checked and tested good. The wipers started working again a day or so later, using the windshield wiper fluid button to test. This marks the second time my family has been put in a situation driving on the highway in a rainstorm with the wipers randomly stopping to work and having to navigate to safety with extremely limited visibility. This appears to be a fairly common issue with newer GM vehicles with the auto sense technology, found plenty of forums with the same experience. The major concern I have is that when this happens the wipers don’t work at all in any mode. Even trying to run in manual mode rather than auto sense the wipers will not move from the resting position. It leaves a driver with zero way to clear rain and see when this randomly occurs.

9/27/2024

For the past 2 years my windshield wipers will fail randomly while using them during a rain storm. I will have to pull over and completely turn the vehicle off turn back on and they may start working again or restart a couple more times. I’ve taken it to the dealership twice over it and the one time it was when they didn’t work and no codes showed up. It just happened again while on the turnpike during a rain storm. It’s very scary because some roads you can’t pull over right away and It’s very hard to see when the windshield is completely covered and the wipers won’t work. A major safety issue. I wanted to take a video but it’s not safe when I’m driving and trying to see out the window. I have 2 little kids and currently pregnant so this is very scary with my kids in the car.

3/31/2025

I was sold a vehicle from a dealership in Green Bay Wisconsin under the impression all safety regulations were met. The day I drove it off the lot, I had issues with the back drivers' door, making wind noise. I had messaged the salesman, he stated it may have been the door seal. Days went by, it wasn't sitting well with me, I made an appointment with a local body shop in. regard's to the door and suspicion of something not right. I brought it to the body shop, they informed me, that the back air bags were deployed and stuffed back into the roof, body work on the left side was done incorrectly and is very unsafe to drive, seat belts where my children sit were finger tightened, frame is held on by a bolt etc. The body shop states that if this vehicle were to be in an accident, it would not sustain impact the way vehicles are designed to do so. The owner of the dealership I had bought from refuses to come to an agreement about this situation. I have all the paperwork and documents from the body shop along with another local dealership near me who I also brought it to look it over as well so the owner could understand that this vehicle should have never been able to be sold on his lot. They also agree that this is super unsafe and should not be driven until it is fixed properly and all safety standards should be met. They believe that it should have been totaled out, it is very obvious that the left side was hit and smashed in. I also asked the owner if he would feel safe for his children to drive in this vehicle and he said, “no” I have many documents/pictures/reports to share once needed.

11/7/2024

Safety Defect Complaint Vehicle Equipment: - Anti-lock Brakes - Full Front Air Bag - Passive Disabling Anti-theft Device Introduction: I am the registered owner and primary driver of a 2021 Chevrolet Suburban. I am filing this safety complaint regarding a serious system malfunction that occurred during an accident in 2023, resulting in injury to myself and my daughter. As a responsible vehicle owner who has maintained this vehicle according to manufacturer specifications since its purchase on July 21, 2021, I am deeply concerned about the safety implications of this incident. Safety Defect Description: In 2023, my vehicle experienced a critical system malfunction during a collision incident. While the vehicle was not in a rollover situation, the system incorrectly detected one, resulting in: 1. Complete vehicle shutdown during active accident conditions 2. All airbags deployed simultaneously 3. False rollover detection despite vehicle only experiencing vertical displacement when something from another vehicle hit the front of my vehicle Injuries and Medical Response: - Driver (self) sustained mild concussion requiring emergency transport - Daughter required emergency medical evaluation - Both occupants transported via ambulance to hospital Insurance Claim Impact: - MetLife denied accident and hospital claims - Denial basis: Absence of traffic citation - Virginia State Police report indicated no-fault accident - This denial has created significant financial hardship due to medical expenses and vehicle repairs - The vehicle's system malfunction has contributed to difficulties in proving accident circumstances Ongoing Vehicle Issues Post-Incident: - Persistent power loss issues, Multiple alignments required, Compromised driving dynamics and handling, vehicle does not track correctly despite repairs Safety Concern: The vehicle's incorrect rollover detection and subsequent complete shutdown during an active accident scenario presents a serious safety risk.

5/1/2025

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 45 MPH, the driver’s side low-beam headlight was pointing inward, affecting his visibility of the roadway. The contact stated that the failure later occurred with the passenger’s side low-beam headlight. There were no warning lights illuminated. The vehicle was taken to the dealer who diagnosed that the headlights needed to be replaced. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 62,000.

12/17/2021

2021 CHEVROLET SUBURBAN. CONSUMER WRITES IN REGARD TO NHTSA SAFETY RECALL 22V-617. THE CONSUMER STATED THE RECALL NOTICE INFORMED HER NOT TO USE THE 3RD ROW UNTIL THEY ARE ABLE TO FIX THE SAFETY ISSUE WITH THE SEATBELT BUT DO NOT HAVE A REMEDY FOR THE RECALL.

11/14/2022

The contact owns a 2021 Chevrolet Suburban. The contact stated that while driving at 25 MPH, the brake pedal seized while depressed, and the vehicle failed to stop immediately. The check engine warning light was illuminated, and "Brake System Failure" and another unknown message were displayed. The contact coasted to the shoulder of the road and parked the vehicle before shutting off. The contact's husband then restarted the vehicle and drove to the residence while the vehicle made an abnormal grinding sound when the brake pedal was depressed. The vehicle was taken to the dealer, where it was diagnosed that the master brake cylinder needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 30,000.

8/11/2023

The computer component surged, and the vehicle is available for inspection. The vehicle brake function is lost. Stepping on the brake paddle did not apply brake. Brake function was disabled by the computer. I took the vehicle to dealer, they said it was a component that has high resistance that cause it. But not sure why it has high resistance at that time and the resistance is gone after driver restarted the vehicle. No one else inspected the component beside the dealership. There was no warning at all and this is the first time it happens. Driver was just driving normally and suddenly all the light in the instructment panel started blinking and driver tried to apply brake but nothing happen. Luckly it wasn't rush hour, and driver was able to let the vehicle roll to the freeway exit on ram and use the up ram to slow the vehicle until it almost stop and changed gear to Park to stop the vehicle. Driver then restarted the vehicle and the problem is gone.

8/31/2023

The computer component surged, and the vehicle is available for inspection. The vehicle brake function is lost. Stepping on the brake paddle did not apply brake. Brake function was disabled by the computer. I took the vehicle to dealer, they said it was a component that has high resistance that cause it. But not sure why it has high resistance at that time and the resistance is gone after driver restarted the vehicle. No one else inspected the component beside the dealership. There was no warning at all and this is the first time it happens. Driver was just driving normally and suddenly all the light in the instructment panel started blinking and driver tried to apply brake but nothing happen. Luckly it wasn't rush hour, and driver was able to let the vehicle roll to the freeway exit on ram and use the up ram to slow the vehicle until it almost stop and changed gear to Park to stop the vehicle. Driver then restarted the vehicle and the problem is gone.

8/31/2023

The fuel pump power control module caused the fuel pump to fail and resulted in unexpected engine stall. The issue cause me and my 4 children to be stuck in the middle of the road waiting for a tow truck for over 3 hours. The vehicle could only be put in neutral while the car was on. Since I couldn’t start my car I could not put it in neutral to move the vehicle out of 2 way traffic. We want the issue confirmed by the dealership but the police who aided me and my children inspected the vehicle and recommend getting the fuel pump look at. No warnings were displayed.

11/6/2023

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving at an undisclosed speed, the Forward Collision Avoidance system activated and abruptly applied the brakes, dramatically reducing the speed of the vehicle. Later, the contact stated that while driving at an undisclosed speed with the Adaptive Cruise Control activated, the vehicle inadvertently accelerated, requiring the contact to depress the brake pedal to avoid a collision. The vehicle returned to normal functionality, but the failure became a regular occurrence. The Forward Collision Avoidance warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the Forward Collision Avoidance warning light and the Adaptive Cruise Control module. The vehicle was repaired, but the failure reoccurred. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 28,000.

6/14/2024

The contact owns a 2021 Chevrolet Suburban. The contact stated that while operating the vehicle, the infotainment center malfunctioned and displayed a black screen. The contact stated that the backup camera was inoperable. The contact stated that due to the failure, the vehicle was unable to receive over-the-air updates from the manufacturer that were safety-related. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure, but no assistance was provided. The failure mileage was 88,000.

2/4/2025

I bought the vehicle on January 11, 2025. Within 2 weeks the service leveling system indicator light came on the dashboard. The vehicle's front left air suspension system was not working properly and the vehicle lowered to the crash shield. The vehicle would not go over 55 miles and hour and was bouncing all over the road. The vehicle went back to the dealership and they reset and calibrated it. A few weeks later, the same thing happened. The vehicle again went down in the front, and was unsafe to drive. The dealership had the vehicle for 3 weeks, had difficulty assessing the situation and changed the front left air suspension arm. They told us it was fixed. We picked it up and as we were driving it home the service leveling system indicator came on, we brought it right back. They had the vehicle another 2 weeks and changed the solonoids, reset and recalibrated and had us pick it up. Within a few weeks the same thing happened, but worse. As I was driving it, an explosion sounded from the vehicle and the whole entire front of the vehicle lowered to the crash shield, making it extremely unsafe to drive. I have asked for the dealership to get a certified mechanic from GM to come and look at the vehicle and to start the repurchase process, no one is getting back to us and the vehicle is unsafe to drive.

4/30/2025