2019 GMC Terrain Owner Complaints

NEED THE OPTION TO DISABLE THE AUTO START FEATURE.

11/8/2018

I HAVE A 2019 GMC TERRIAN WITH 2500 MILES. I WAS DRIVING IT AND THE CAR FLASHED LOW FUEL, CHECK TRANSMISSION AND CHECK ENGINE WARNING AND SHUT DOWN WHILE I WAS AS A HIGHWAY SPEED. I WAS FORTUNATELY OK, HOWEVER IT STRANDED ME AT A SPOT WITH MERGING TRAFFIC, NO SHOULDER AND NO POWER TO GET THE VEHICLE OUT OF THERE. THE VEHICLE WAS ABLE TO START UP SHORTLY, THEN I HAD TO DEAL WITH GETTING GOING AGAIN IN THIS PRECARIOUS SPOT.

4/22/2019

Driving down load. Brake pedal got stiff as a rock. Brakes started to lock up. Almost caused a collision, as the car would not stop

5/21/2021

I received a "service brake assist" message which came on then off. Took the car to a local mechanic who looked it over and said to see dealer as they saw nothing obvious. internet search revealed that many people with terrain said this warning came on when battery was low. Made a service appt for NJ dealer for 12/6/21. on 12/3/21, began a 1200 mile drive from Florida to NJ, after 2 hours, check engine light came on. Took the exit ramp from I 75 and at end of ramp, there was a total braking failure. I had to press very hard to eventually stop. Shut off car, attempted to restart but it would not. Towed to a mechanic who found fluid leakage and a repair bulletin on GM site involving vacuum seal camshaft. #pip5598A diagnostic tip. Internet search reveals many anecdotal instances of same problem. On Monday, 12/6/21, I received an email from GMAC saying that the on board diagnostics had shown a "low battery" concern. The catastrophic loss of braking seems to be connected to a low battery situation. This needs to be looked into by NHTSA.

12/7/2021

I HAVE A 2019 GMC TERRIAN WITH 2500 MILES. I WAS DRIVING IT AND THE CAR FLASHED LOW FUEL, CHECK TRANSMISSION AND CHECK ENGINE WARNING AND SHUT DOWN WHILE I WAS AS A HIGHWAY SPEED. I WAS FORTUNATELY OK, HOWEVER IT STRANDED ME AT A SPOT WITH MERGING TRAFFIC, NO SHOULDER AND NO POWER TO GET THE VEHICLE OUT OF THERE. THE VEHICLE WAS ABLE TO START UP SHORTLY, THEN I HAD TO DEAL WITH GETTING GOING AGAIN IN THIS PRECARIOUS SPOT.

4/22/2019

I PURCHASED A 2019 GMC TERRAIN VIN: [XXX] ON JAN 17, 2019 AT RIZZA BUICK GMC 8415 W. 159TH STREET, TINLEY PARK IL, 60487, ON JANUARY 17, 2019. THIS WAS MY FIRST BRAND NEW CAR AND I WAS EXCITED. I TRADED IN A 2014 GMC TERRAIN IN THE PROCESS, KNOWING I WOULD BE UPSIDE DOWN ON THE LOAN. I HAD THE FIRST SERVICE DONE ON APRIL 23, 2019 AT SAID DEALERSHIP. AT THAT VISIT I EXPLAINED THAT I WAS HEARING A NOISE ON THE PASSENGER SIDE VENT EVEN WHEN THE HVAC WAS NOT RUNNING. I WAS TOLD NOTHING WAS DETECTED AND MY VEHICLE WAS FINE ON MAY 24, 2019, I DROVE MY VEHICLE TO MEMPHIS TENNESSEE WITH MY FAMILY FOR MEMORIAL DAY. ON MAY 25, 2019 THE CHECK ENGINE LIGHT CAME ON, I WAS LOSING POWER TO THE ENGINE. THAT SAME NIGHT CUSTOMER SERVICE TOWED MY VEHICLE TO SUNRISE CHEVROLET BUICK GMC, 1800 COVINGTON PIKE MEMPHIS, TENNESSEE 38128, A NEARBY GMC DEALERSHIP AND SET UP A RENTAL CAR IN THE AREA FOR ME TO DRIVE. BECAUSE IT WAS THE HOLIDAY, ENTERPRISE WAS CLOSED, AND I HAD NO VEHICLE TO DRIVE FOR TWO DAYS. THIS WAS AN INCONVENIENCE TO ME AND MY FAMILY, I HAD TO ALTER MY TRIP PLANS THAT WERE MADE BACK IN FEBRUARY 2019. ON MAY 27, 2019 I WAS TOLD BY [XXX] THE TECHNICIAN AT SUNRISE CHEVROLET THAT AIR BOX TUBE WAS LOOSE AND NOT PROPERLY INSTALLED AND COULD HAVE BEEN DONE DURING MY SERVICE I HAD DONE APRIL 23RD. I WAS ASSURED EVERYTHING WAS OKAY AND I WAS GOOD TO GO. ON MAY 31, WHILE TRAVELING BACK HOME THE CHECK ENGINE LIGHT CAME ON AGAIN. SAME MESSAGE ON THE DASH AND IT WAS RAINING AT 3AM. I WAS CLOSE TO HOME AND WAS ABLE TO MAKE IT TO THE DEALERSHIP THAT I PURCHASED IT FROM. MY VEHICLE HAS BEEN IN SERVICE SINCE MAY 31, 2019 AND I AM JUST FINDING OUT THAT I HAVE A PART THAT IS ON NATIONAL BACK ORDER. I AM NOT SATISFIED WITH MY EXPERIENCE AN I AM REACHING OUT TO YOU TO RESOLVE THIS MATTER. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

6/12/2019

WHEN TRYING TO START VEHICLE WITH PUSH BUTTON IGNITION AND BRAKE PEDAL DEPRESSED, THE VEHICLE FAILED TO START. THE DASH LIGHTS WOULD COME ON AND ERROR MESSAGES SUCH AS LOW BATTERY CAME UP ON DASH DISPLAY. VEHICLE WAS PURCHASED ON 11/17/18. TWO SEPARATE OCCASIONS OCCURRED WHERE THE CAR HAD TO BE JUMPED. ONE ON 11/21/18 AND 11/22/18. UNSURE IF AN ELECTRICAL WIRING ISSUE OR BATTERY ISSUE?

11/22/2018

LEASING A 2019 GMC TERRAIN TECHNICAL, WITHIN A FEW DAYS CLIMATE OFF ERROR CAME ON WHILE TRYING TO TURN ON THE AC OR HEAT. CAR SAFETY FEATURES NEVER ALERTED WITH SOUNDS. SERVICE BULLETINS PIT 5663 AND PIC 6365A, GMC KNOWN PROBLEMS BEFORE I SIGNED MY LEASE. CONTACTED GMC AFTER PENSKE BUICK GMC, SHILLINGTON PA, TOLD ME THERE WAS NOTHING THEY COULD DO TO FIX THE CLIMATE OFF ERROR. PUSHED AN UPDATE THROUGH TO FIX THE SAFETY NO ALERT SOUNDS. AT THIS POINT PENSKE AS WELL AS GMC HAVE NO IDEA WHEN THE CLIMATE OFF ERRORS WILL BE FIXED. I CONTINUE TO PAY MY FULL LEASE RATE FOR A VEHICLE THAT DOES NOT FULLY WORK.

7/1/2019

LIFT GATE ON THIS VEHICLE OPENS TO A HEIGHT OF 69 INCHES . AT 74 INCHES I AM CONSTANTLY BANGING MY HEAD ON THE LIFT GATE. MY 2017 MODEL OPENED TO AT LEAST 76 INCHES WHICH IS MORE REASONABLE. I CONSIDER THIS A SAFETY ISSUE, AS THIS IS A FLAW IN THE DESIGN OF THE VEHICLE. THE MODEL THAT HAS A POWER LIFT GATE OPENS TO AROUND 76 INCHES.. A FULL 7 INCHES HIGHER THAN THE MANUAL ONE.. THE DEALERSHIP NEVER POINTED OUT THIS PROBLEM TO ME SEEING THAT I AM 74 INCHES TALL.

12/28/2018

I PURCHASED MY 2019 TERRAIN DENALI ON 2/27/19. I BEGAN MY DRIVE INTO WORK THIS MORNING (3/4/19) AND MERGED ONTO THE FREEWAY AND SECONDS LATER HEARD A LOUD EXPLOSIVE SOUND, ONLY TO REALIZE THE FIRST HALF OF MY PANORAMIC MOONROOF WAS SHATTERED (SEE INSIDE PHOTO). SHARDS OF GLASS WERE FALLING INTO THE VEHICLE BUT IT HAD NOT COLLAPSED COMPLETELY AT THIS POINT. I DID NOT DRIVE UNDER ANYTHING THAT MAY HAVE FALLEN, THERE WERE NO OBJECTS IN THE ROAD THAT CAME UP TO HIT MY VEHICLE, THE GLASS JUST SHATTERED OUT OF NOWHERE. AFTER CALLS WITH THE DEALERSHIP AND ROADSIDE ASSISTANCE, I DECIDED TO ATTEMPT TO CLOSE THE INSIDE COVER FOR THE MOONROOF AND DRIVE TO THE DEALERSHIP. I WAS ABLE TO DO SO SUCCESSFULLY BUT AS SOON AS I MOVED THE VEHICLE, YOU COULD HEAR THE GLASS COLLAPSE (SEE PICTURE).

3/4/2019

VEHICLE CAN BE INADVERTENTLY BY EITHER A PASSENGER OR AN OBJECT PUT INTO NEUTRAL. NO ALERT OR CHIME IS MADE TO ALERT THE DRIVER THAT THE CAR IS IN NEUTRAL, ONLY THE GEAR SELECTOR ON THE DASH OR THE LIGHT ON THE BUTTON INDICATES THAT IT IS IN NEUTRAL. IF SOMETHING IS COVERING THE SHIFTER, SUCH AS A BAG OR OTHER ITEM, IT IS POSSIBLE THAT AN ACCCIDENT MIGHT OCCUR BECUASE THE BAG OR ITEM MAY PRESS THE BUTTON, SHIFT THE VEHICLE INTO NEUTRAL CAUSE THE DRIVER TO BE CONFUSED AND NOT HAVE POWER TO MANEUVER THE VEHICLE IN AN EMERGENCY SITUATION. A CHIME SHOULD ALERT THE DRIVER THAT THE VEHICLE HAS BEEN PUT IN NEUTRAL SO IT DRAWS ATTENTION TO THAT FACT. IN ANOTHER SCENARIO A SMALL CHILD THAT IS OLD ENOUGH TO SIT IN THE PASSENGER SEAT BUT NOT OLD ENOUGH TO UNDERSTAND THE CONTROLS MIGHT PRESS THE BUTTON, CAUSING THE DRIVER TO HAVE AN ACCIDENT BECAUSE THEY ARE NOT ABLE TO MANEUVER OUT OF THE WAY OF AN IMPENDING COLLISION. I HAVE VERIFIED THIS POSSIBILITY BY PRESSING THE NEUTRAL BUTTON AT VARIOUS SPEEDS AND IT IS VERY POSSIBLE FOR IT TO HAPPEN UNINTENTIONALLY. OTHER VEHICLES WITH SIMILAR SYSTEMS HAVE THE BUTTONS AND OR SHIFTER IN A PLACE WHERE INADVERTENT ENGAGEMENT OF THE BUTTON IS UNLIKELY. OTHER SCENARIOS - PEOPLE PLACING PHONES, BAGS ETC DURING THE COURSE OF DRIVING, AS ON A HIGHWAY MAY INTERFERE WITH SHIFTING IN AN EMERGENCY SITUATION OR MAY CAUSE ONE BY PUTTING THE VEHICLE IN NEUTRAL. AS IN AN HOUR IN ON A LONG DRIVE, SOMEONE BLOCKS THE SHIFTER BECAUSE THEY AREN'T IN NEED OF IT AT THE MOMENT AS THEY MIGHT BE WHILE PARKING OR MANEUVERING IN CITY TRAFFIC.

8/15/2018

THE SHIFTER IS DANGEROUS. IT ALLOWS YOU TO INADVERTENTLY SHIFT INTO NEUTRAL WHILE DRIVING. IN A CAR WITH A NORMAL SHIFTER, THE SHIFTER NEEDS TO BE PUSHED WITH SIGNIFICANT FORCE TO MOVE IT INTO NEUTRAL AND THE RESULTING THUNK WILL LET YOU KNOW IT HAPPENED. IN THIS CAR, SINCE IT IS AN ELECTRONIC BUTTON THAT CAN BE EASILY PRESSED, ESPECIALLY BECAUSE IT IS IN A LOCATION WHERE IT MIGHT GET HIT BY AN OBJECT LIKE A PURSE. THE DRIVER MAY WIND UP WITHOUT POWER AND THEN NOT HAVE AN EASY WAY TO REINGAGE DRIVE. ALSO, THERE IS NO PHYSICAL DIFFERENTIATION BETWEEN DRIVE AND REVERSE, WHICH CAN CAUSE CONFUSION IN LOW SPEED DRIVING INTERACTIONS IF A DRIVER DOES NOT LOOK AT THE BUTTONS. VEHICLES SHOULD HAVE A SOFTWARE UPDATE TO INDICATE WHEN THE VEHICLE GOES INTO NEUTRAL ABOVE A CERTAIN SPEED AS WELL AS HAVING THE PHYSICAL BUTTONS REPLACED WITH SOMETHING THAT OFFERS A TACTILE DIFFERENCE BETWEEN REVERSE AND DRIVE.

11/5/2018

STOP AND GO TRAFFIC ON I-75. THE VEHICLE JUMPED FORWARD. DRIVER TRYING TO PUSH THE BRAKE PEDAL BUT IT WAS NOT WORKING, AUTO SENSORING HAD TAKEN OVER THE VEHICLE AND CAUSED THE VEHICLE TO REARENDED THE VEHICLE AHEAD OF IT PUSHING THAT VEHICLE INTO THE VEHICLE AHEAD OF THAT ONE.

4/4/2019

WHILE DRIVING, THE ENTIRE GPS NAVIGATION SHUTS OFF AND GIVES AN SD CARD ERROR MESSAGE. NOTHING ON THE INFOTAINMENT SCREEN IS ON OR FUNCTIONING, INCLUDING SENSORS.

4/24/2019

TL* THE CONTACT OWNS A 2019 GMC TERRAIN. WHILE DRIVING 70 MPH WITH THE CRUISE CONTROL ENGAGED, THE AUTOMATIC EMERGENCY BRAKING SYSTEM INDEPENDENTLY ACTIVATED AND THE SPEED DECELERATED TO 45 MPH. THE CONTACT DEPRESSED THE ACCELERATOR PEDAL AND THE VEHICLE RETURNED TO CRUISE CONTROL MODE. THERE WAS NO WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO HALL BUICK GMC (LOCATED AT 3010 S SW LOOP 323, TYLER, TX 75701, (903) 771-2886) TO BE DIAGNOSED, BUT THE FAILURE COULD NOT BE DUPLICATED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND PROVIDED CASE NUMBER: 9-5110159147. THE CONTACT WAS REFERRED TO NHTSA. THE APPROXIMATE FAILURE MILEAGE WAS 4,473.

3/14/2019

The autoshutoff of the vehicle should be optional this vehicle goes on and off so many times and after it starts is acting up on braking and transmission deeler says no dtc all good but still doin it

2/20/2022

While driving the car cut off on us. Started the car and the dash lights were on. Also Navigation stopped working. Took the car to bellamy Strickland and they said no issues was found. Got the car back 12/02_2021 Car seems to be ok at the moment. Melissa at bellamy stated it could have been a computer glitch. Car only has 20k miles on it.

12/3/2021

The car cuts off during driving and when u crack it back up the dash light do not work. But then the dealership said its a known issues but the car just needs to be reset...... but cutting off while driving can be dangerous. It's something a car should not do

2/6/2023

The contact owns a 2019 GMC Terrain. The contact stated while approaching an intersection, he depressed the brake pedal to the floor however, the vehicle failed to stop immediately. The contact stated no warning light was illuminated. The contact stated that the brake assist activated and stopped the vehicle. The contact was able to continue driving to his residence at a slower speed. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the vacuum pump to be replaced. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 84,400.

7/12/2022

The contact's client leased a 2019 GMC Terrain from Hertz Leasing Company. The contact stated while her client was driving approximately 60 MPH, the brake pedal was depressed but failed to go down and did not respond. The brake assist warning light was illuminated. The contact stated that her client continued driving and allowed the vehicle to decelerate independently. The contact's client then veered to the side of the road. There was no further information provided. The vehicle was returned to Hertz leasing company who later informed the contact's client that the vehicle had been diagnosed with brake vacuum pump failure. There was no further information provided. The manufacturer was not notified of the failure. The failure mileage was approximately 42,000.

11/29/2022

THERE ARE NUMEROUS DEFECTS RELATED TO THE STEERING, THE LOW SPEED FORWARD AUTOMATIC BRAKING DOESNT WORK AND THE FRONT PEDESTRIAN BRAKING DOESNT WORK. THE LANE KEEP ASSIST WORKS MOST OF THE TIME BUT THE LANE DEPARTURE WARNING NEVER WORKS. I BROUGHT IT TO THE DEALER 3 TIMES AND EACH TIM EIM TOLD THAT SINCE THERE ARE NO COMPUTER ERROR CODES IT HAS TO BE WORKING. THEY EVEN GAVE ME PAPERWORK WHERE GM TELLS THE MECHANIC WHAT TO TELL THE CUSTOMERS WHO COMPLAIN THAT THESE FEATURES AREN'T WORKING.

5/11/2019

When turning right or left from a stop, the steering wheel jerks sharply in the opposite direction as soon as the car starts to accelerate. Diagnostic tests and inspection determined that the steering gear is loosing voltage causing the jerk in the steering wheel. The gear has the latest calibration and needs to be replaced. Cost estimate to replace is $2035.63

10/27/2023

TL* THE CONTACT OWNS A 2019 GMC TERRAIN. WHILE REVERSING AT 3 MPH, THE VEHICLE CRASHED INTO A TELEPHONE POLE DUE TO THE BACK UP CAMERA BEING INOPERABLE. THE CONTACT STATED THAT THE CAMERA DID NOT DETECT THE OBJECT THAT WAS LOCATED ON THE REAR PASSENGER SIDE OF THE VEHICLE. THE VEHICLE SUSTAINED DAMAGE TO THE LIFTGATE AND THE REAR WINDOW WAS SHATTERED. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THERE WERE NO INJURIES. THE VEHICLE WAS NOT TAKEN TO A DEALER OR INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 7,681.

10/11/2019

The Back Up Camera System is not working properly. When Vehicle is put into reverse a blue screen appears. This can be dangerous as one could back up into someone or something. This is a 2019 vehicle and the NHTSA made them mandatory in May of 2018. This has been confirmed by a dealership. Many others have posted this online as an issue and GM has put out this service bulletin: https://static.nhtsa.gov/odi/tsbs/2019/MC-10160418-9999.pdf

1/3/2022

When turning right or left from a stop, the steering wheel jerks sharply in the opposite direction as soon as the car starts to accelerate. Diagnostic tests and inspection determined that the steering gear is loosing voltage causing the jerk in the steering wheel. The gear has the latest calibration and needs to be replaced. Cost estimate to replace is $2035.63

10/27/2023

My transmission keeps sticking when I shift into drive or reverse. Just a couple of days ago, it happened the worst it has ever done before. I shifted into reverse and my vehicle was completely stopped when I shifted. I began to let off of the brakes and gently push the accelerator to start moving back, my vehicle then punched itself into reverse. I felt after that incident, something had to have been damaged. I’m almost afraid to drive my vehicle after that. When my vehicle punched itself into reverse, I was literally jolted towards the steering wheel and thankfully my seatbelt caught me. Incidents with the the shifting into drive or reverse have happened before, but never nearly as intense. About a year ago, I brought my vehicle in to my local GMC Dealership for a concern with my transmission shifting weirdly and holding itself in gear at an unnecessarily high RPM speed. The technician stated to me, “with these 9-speeds, they tend to get confused at various speeds”. I asked him to elaborate and he could not. These issues have now gotten worse. With my suspension, every turn I take, I get a kreaking sound from my front driver side wheel well. It sounds as if my tire if going to break off. I’ve done visual inspections and nothing out of the ordinary is noticeable to the eye. My vehicle is a 2019 with less than 40,000 miles on it. I should not be having all of these issues. I’m genuinely concerned for my safety.

8/2/2024

The contact owns a 2019 GMC Terrain. The contact stated that occasionally while the vehicle was shifted into reverse, the back-up camera failed to display an image behind the vehicle as intended. The contact stated that the display screen turned blue. The local dealer was contacted, but the vehicle was not diagnosed or repaired. Upon further investigation, the contact related the failure to Technical Service Bulletin: 19-NA-076. The manufacturer was not made aware of the failure. The failure mileage was approximately 50,000.

12/6/2024

The contact owns a 2019 GMC Terrain. The contact stated that while in reverse(R), the back-up camera failed to operate as needed with the display screen displaying a blue image. The "Service Rear Vision System" message was displayed on the instrument panel. Neither the dealer nor the manufacturer was notified about the failure. Upon further investigation, the contact related the failure to Technical Service Bulletin: 19-NA-076. The vehicle was not repaired. The failure mileage was approximately 88,000.

12/12/2024

I WAS IN AN ACCIDENT AND WAS HIT IN THE DRIVER ON THE DRIVER SIDE OF THE VEHICLE ON THE STREET. THE AIRBAGS DIDN'T DEPLOY DURING THE ACCIDENT.

7/12/2019

The contact owned a 2019 GMC Terrain. The contact stated that while driving at an undisclosed speed, another vehicle crashed into the passenger side of the contact's vehicle. The air bags deployed; however, metal fragments from the air bag hit the contact's face, causing severe injuries. The contact received medical attention. The vehicle was towed to a tow yard. A police report was filed. The vehicle was deemed totaled by the insurance company. The manufacturer was not made aware of the failure. The failure mileage was approximately 20,000.

7/10/2023

The contact owns a 2019 GMC Terrain equipped with Hankook Tires, Tire Line: Ventus S1 Noble 2 Tires, Tire Size: 235/50/R19, DOT Number: (N/A). The contact stated that while her daughter was driving approximately 45 - 50 MPH, the low-pressure tire warning light was illuminated. The contact's daughter pulled over and noticed that there was tread separation on the front passenger's side tire. The contact's daughter replaced the affected tire with the spare tire. The vehicle was later towed to the dealer. The dealer was awaiting approval from the manufacturer to replace the tire. The tire manufacturer was not made aware of the failure. The failure mileage was not available. The VIN was not available.

12/13/2021

BOTH FRONT TIRES SHOWING HEAVY CHIPPING OFF OF TIRE TREAD

12/30/2021

While driving the vehicle the car went into limp mode and the back brakes stopped working. The car had to be drifted into a parking lot. The vacuum pump malfunctioned and has damaged the engine. If it was me in the driver seat instead of my partner, the incident would’ve 100% been an accident. The car was really unable to be controlled and we just happened to have that space that was empty to turn into. The car gave code when this happened. When getting a tow the car also wouldn’t take itself out of park or start to go into neutral to move the car to get it towed. Nothing is working with each other anymore and we were on a busy road of people when our brakes just went out.

8/31/2025

Vehicle struggles to shift from low gears; seems to completely miss 3rd gear. Codes from maintenance indicate TCC slip

9/22/2025

The drivers side Seat belt buckle breaks somehow and we are unable to buckle the seatbelt in the car. After the first time, I bought another brand new buckle, replaced it. After one week of use, it also locked up. I am not sure what is going on and why such a thing keeps happening, but it is not safe and needs to be fixed ASAP. Not everyone has $80 to spend once a week on a new belt buckle which should last a lifetime. This is beyond dangerous, since seat belts are mandatory and my wife being unable to use it can be a matter of life or death. This is her only means of transportation and we can't just park it and use another. I can't possibly be the only one. Thank you for taking the time to look into this matter. Please let me know if there is any further information regarding this matter.

9/6/2021

I’m crying out to you because I bought a 2019 GMC Terrain in April of this year with about 14,000 miles. The suv ran great for about 2 months and since then I’ve been dealing with nothing but a nightmare. We’re dealing with a situation where the suv goes into park while driving. We’ve brought the suv multiple times to GMC dealership and even reached out to GMC, and had no luck resolving the issue. Last night, while driving to a family event, the suv went into park while I was driving. This is the 4th time since we got the suv. I’m scared for my safely in this suv, if you could please assist

12/3/2022

The contact owns a 2019 GMC Terrain. The contact stated that while driving at approximately 75 MPH, the panoramic glass sunroof shattered, causing shards of glass to enter the cabin of the vehicle. The contact stated that the panoramic sunroof was in the closed position when the failure occurred. During the failure, the front passenger sustained lacerations to the back, leg, and shoulder. The eleven-month-old child seated in the rear passenger’s side seat sustained lacerations to both legs. The rear middle seat occupant sustained a laceration to the rear head area, while the rear driver’s side occupant sustained lacerations to both arms. No injuries required medical treatment. The cause of the failure was not yet determined. The local dealer and manufacturer were not notified of the failure. The failure mileage was 58,000.

5/22/2023

The contact owns a 2019 GMC Terrain. The contact stated while driving 10-12 MPH and approaching a traffic light, the brake pedal was depressed, but failed to respond and went down to the floorboard. There was no warning light illuminated. The contact stated that she continuously pumped the brake pedal until the vehicle stopped. The contact veered to the side of the road. The "Low Brake Fluid" message was displayed, and other unknown warning lights were illuminated. The contact added brake fluid to the vehicle. The contact stated that she turned off and restarted the vehicle. The dealer was notified of the failure and advised the contact to take the vehicle to their location for a diagnostic test. A tow truck driver informed the contact that the brake caliper was fractured and there was a puddle of brake fluid on the ground. The vehicle was towed to the dealer, where it was diagnosed that the brakes hardware had failed, the brake caliper was fractured, and the brake sensor and actuator had failed. The dealer then informed the contact that the manufacturer was contacted and advised that they would only cover the brake caliper, pads, and rotors replacement. The vehicle was not repaired. The failure mileage was approximately 40,000.

6/21/2023

The contact owns a 2019 GMC Terrain. The contact stated while driving approximately 40 MPH, the accelerator was depressed to overtake a vehicle; however, the vehicle hesitated, and RPM revved to 4,000 RPM. The vehicle then shifted into gear with a jerk, causing the vehicle to shake abnormally. The contact stated there was no warning light illuminated. The contact stated that the failure also occurred while accelerating from a stop. The contact had taken the vehicle to an independent mechanic who diagnosed the vehicle but was unable to retrieve a fault code. The vehicle had not been repaired. The contact stated that the failure was intermittent but persistent. The manufacturer had been informed of the failure. The failure mileage was approximately 60,000.

9/12/2023

Brakes got hard all of a sudden locked up, almost hit another car, front collision warning keeps going off and automatically hitting brakes with no one in front of me. I’ve read it could vacuum brake pump failure. Please recall this as many people have kids and could hurt them.

2/20/2024

The contact called on behalf of her husband who owns a 2019 GMC Terrain. The contact stated that while her husband was driving approximately 50 MPH, the brakes seized, and the contact veered off into a lot to park the vehicle. The vehicle was towed to an independent mechanic where the vehicle was diagnosed. The contact was informed that the brake vacuum pump and the timing chain needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 72,000.

10/9/2024

While I was driving on a highway, my sunroof suddenly imploded, causing shattered glass to fall all over myself and my car. The outside temperature was 50° and my car’s internal temperature was set to 68°. I reported this to the GM dealership and they told me to just report it to insurance. I am making a claim with insurance now. There were no warning or signs of this happening, just a sudden extremely loud noise and glass falling. No inspections have been done.

11/25/2024