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2018 Genesis G90 Owner Complaints

Updated May 30, 20263 Critical Recalls
Ryan Davis
2018 Genesis G90 Owner Complaints

Complaint Summary

The 2018 Genesis G90 has 21 reported complaints.

  • Top issues involve electrical system and engine.

Reliability Score

Reliability Score

7.0/ 10

Based on 21 complaints

Most Frequent Issues

ELECTRICAL SYSTEM

5 23.8%

ENGINE

4 19%

FUEL/PROPULSION SYSTEM

2 9.5%

POWER TRAIN

2 9.5%

UNKNOWN OR OTHER

2 9.5%

Quick Insights

  • The top category is ELECTRICAL SYSTEM, accounting for 23.8% of all complaints.

  • Owners have reported issues across 11 distinct vehicle systems.

  • Note: Complaint data reflects owner reports and may not always indicate a verified defect. Compare with Recalls and TSBs for a complete picture.

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Complaint Summary

What owners keep reporting on the 2018 Genesis G90

The 2018 Genesis G90 has 21 owner complaints in this dataset. ELECTRICAL SYSTEM is the most common complaint category, representing about 24% of the reports shown here.

Most common complaint categories

The top complaint groups for the 2018 Genesis G90 are ELECTRICAL SYSTEM (5), ENGINE (4), FUEL/PROPULSION SYSTEM (2).

Are these complaints a serious red flag?

Potentially. 12 complaint reports involve higher-attention systems like brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components, which is enough to justify a focused inspection.

What should buyers inspect on a used 2018 Genesis G90?

Start with the top complaint systems, compare them against the recall report, then inspect service records for evidence that those same areas were already repaired or monitored.

Read the full buyer guideRecall report and remedy notesMaintenance costs and intervals2017 G90 complaints2019 G90 complaints2020 G90 complaints

Detailed Complaint Log

Showing 11 of 11 systems

ELECTRICAL SYSTEM

5 Reports24% of total

Previewing the first 2 complaint summaries.

CAR WAS COMPLETELY DEAD THREE TIMES, LUCKILY IT HAPPENED IN GARAGE, AND WAS TOWED TO DEALER. NEVER FIXED PROPERLY HAD TO GET RID OF UNRELIABLE, UNSAFE CAR.

8/8/2020

On 01/16/22 at approximately 2305 hours, I was driving north on PA 743. I was traveling approximately 40 MPH in a posted 55 MPH zone due to snowy weather conditions. One adult was in the front passenger seat, 2 children were in car seats in the rear driver and passenger side. The road was level and straight. Suddenly, for no apparent reason, every warning light in the dashboard illuminated at once. The LED screen was rapidly displaying messaged such as, "blind spot monitoring system malfunction, smart BDS braking system malfunction, check smart high beam, check PSB, shifter malfunction, traction control malfunction, ESC malfunction, ABS malfunction, etc...". Immediately after traction control malfunctioned, the vehicle violently fishtailed, as if on the receiving end of a PIT maneuver, and crossed over the south bound lane. It continued off of the roadway and into a ditch, stopping several feet away from a fence. At that point, nothing was functional. Restarting the vehicle multiple times did not remedy anything. The vehicle was towed to the dealership. After approximately two months, Genesis USA advised they were unable to find any issues with the vehicle and it would soon be available to be picked up. Both the dealership and a third party(hired by Genesis) inspected the vehicle . The results of the third party inspection were unavailable.

3/27/2022

3 more complaints are available in this category.

ENGINE

4 Reports19% of total

Previewing the first 2 complaint summaries.

SEE UPLOADED LETTER ATTACHED

5/18/2018

MY CAR HAS BEEN RECALLED PURSUANT TO NHTSA RECALL NUMBER 19V-538. DESPITE MAKING FOUR SEPARATE ATTEMPTS, I HAVE BEEN UNABLE TO GET GENESIS TO PERFORM THE RECALL. THE DEALERSHIP FROM WHICH I PURCHASED THE CAR HAS GONE OUT OF BUSINESS. I HAVE CONTACTED THE MANUFACTURER TWICE, BUT DESPITE PROMISES, THEY HAVE BEEN UNABLE TO PERFORM THE NECESSARY REPAIR.

1/15/2020

2 more complaints are available in this category.

FUEL/PROPULSION SYSTEM

2 Reports10% of total

Previewing the first 2 complaint summaries.

SEE UPLOADED LETTER ATTACHED

5/18/2018

GENESIS HAS BEEN IGNORING AN ACCELERATION PROBLEM I'VE MADE COMPLAINTS. ; KHOI NUOEN (GENESIS CUSTOMER CARE). RESPONDED AFTER A WEEK OF INVESTIGATION ' ENGINEERS AWARE OF HESITATION PROBLEM. THERE IS NOTHING WE CAN DO 'YOU ARE GOING TO HAVE TO GET USED TO IT.'; I AM CLOSING YOUR CASE'. 6/25/18 GEORGE NASSAR TOLD JOE THAT THE 'HESITATION' (BALKING) WAS A CHARACTERISTIC OF THE G90 'LIVE WITH IT'. (MAY 17. 2018) - THE COMPUTER HAD REVEALED SEVERAL OF THE I TOLD JOE THAT JOE WOULD HAVE TO 'GET USED TO IT' 'IT IS JUST THE WAY IT IS, NEW TECHNOLOGY - YOU KNOW '- REFERRING TO THE CARS POOR PERFORMANCE. CAR DID IT AGAIN 7/20/18. SO BOUND STOP LIGHT DATE PALM TO PEREZ - MILEAGE 3,094. JULY 24. SHOULD BE. IN GREEN WHEN STOPPED - WHITE WHEN ACCELERATING HAS BEEN STAYING IN WHITE WHEN STOPPED AND ACCELERATING. (PAGE 5-46 - OWNERS MANUAL) CAR WAS NOT PICKED UP. THEY HAD JED CALL ARRANGED TO HAVE CAR PICKED UP THURSDAY JED CALLED RELATED THAT HE, JED HAD DRIVEN A SIMILAR G90 TODAY AND IT HAD THE SAME HESITATION. ECM (FUEL CONTROL) - TRAC CONTROL - TURBO HAVE TO ALL 3 GO IN CONJUNCTION - THEY DON'T - JED SAID HE'D SPOKEN TO A FIELD TECH WHO ACKNOWLEDGED THAT IS A G90 PROBLEM AN D THERE HAS NOT 'FIX'BEEN PROVIDED TO DATE. JED TOLD ME I CAN'T STEP ON THE GAS TOO HARD AND EXPECT THIS CAR TO RESPOND. (NOTE I AM A 62 YEAR OLD MAN WHO NOT HAD THIS PROBLEM WITH ANY CAR EVER! JAGUAR - MERCEDES - THUNDERBIRD - F150 - RENTAL CARS - NEVER! DANNY DROPPED OFF THE CAR 3:30PM HE SAID THAT THERE WAS NO FIX - THE G80 GENESIS DOES THE SAME THING. HE SAID HE FELT HESITATE IN OUR CAR BOTH TIMES HE TOOK IT IN. JOE WOULD LIKE THE CAR FIXED OR REPLACED WITH SAME MODEL WITH A BETTER PERFORMING ENGINE. 7/26/2018 POST OFFICE RETURNED LETTER SENT CERTIFIED TO. GENESIS MOTORS USA/ PHOENIX. PO BOX1430 MESA AZ 85211. MAILED JUNE 29,2018.

7/28/2018

POWER TRAIN

2 Reports10% of total

Previewing the first 2 complaint summaries.

SEE UPLOADED LETTER ATTACHED

5/18/2018

THERE GEAR SHIFTER WILL FREQUENTLY NOT SELECT R OR D. IT OFTEN TAKES 3 OR MORE ATTEMPTS BEFORE IT WILL STAY IN GEAR. THIS IS VERY DANGEROUS WHEN MAKING A 3 POINT TURN MANEOUVER AND VERY INCONVENIENT AT OTHER TIMES. THIS FAULT OCCURS EVERY DAY. THE DEALER ATTEMPTED TO ADJUST THE SHIFTER WITHOUT SUCCESS

10/27/2018

UNKNOWN OR OTHER

2 Reports10% of total

Previewing the first 2 complaint summaries.

QUITE RANDOMLY, WHEN TRYING TO ACCELERATE FROM A STOP OR A VERY LOW SPEED AND USUALLY TURNING INTO TRAFFIC SUCH AS OUT OF A DRIVEWAY, THERE WILL BE NO POWER RESPONSE FOR SEVERAL SECONDS AFTER PRESSING THE ACCELERATOR PEDAL.

8/16/2019

In the last 8,000 miles the car has stopped cold (about 15 times) when pulling out from a stop. When pulling out the car goes about 3 feet and stops dead. The gas pedal is dead for 1-2 sections, then it responds. The car has almost killed me and my wife several times. The car is under warranty and has been to dealer's service departments 3 times. They claim the computer does not show anything. They refused to attempt an inspection or do any repairs since they can not reproduce the problem and it does not show on their computer. I has contacted costumer service and have no success. THIS IS DANGEROUS SITUATION AND HAS THE CAPACITY TO KILL PEOPLE. This started happening soon after we purchased the vehicle on 02/15/20 and persists to 10/10/21.

10/11/2021

STRUCTURE:BODY

1 Report5% of total

Previewing the first 1 complaint summaries.

OUTSIDE MIRRORS AND WINDSHIELD CONTINUE TO MELT AND ACCORDING TO THE GENESIS ENGINEER, THIS IS DUE TO THE SUNLIGHT REFLECTING OFF MY HOUSE AND ONTO MY CAR THUS CAUSING THE MIRROR AND MOLDING TO MELT

1/24/2019

AIR BAGS

1 Report5% of total

Previewing the first 1 complaint summaries.

AIR BAG WARNING LIGHT COMES ON ,EVERY TRIP WE TAKE. AFTER ABOUT 500 MILES AIR BAG LIGHT COMES ON STAYS ON FOR UP TO 1000 MILES THEN GOES OUT AGAIN. LIGHT WILL COME ON WHILE DRIVING AND THEN STAYS ON EVEN WHEN STOPPED AND PARKED OVER NIGHT WHILE BEING USED ON HIGHWAY. AIR BAG WARNING WILL TURN OFF WHEN IT FEELS LIKE IT. IT HAS BEEN WORKED ON AT LEAST 4 TIMES AND STILL CONTINUES DOING THIS. THIS COULD BE A REAL SAFETY PROBLEM IF AN ACCIDENT. GENESIS SEEMS TO BE UNABLE TO FIX. *TR CONSUMER STATED WOULD LIKE TO REPORT THAT I HAVE HAD 28 ALERTS MOST ON AIR BAG FAILURE IN 20 MONTHS. BECAUSE I LEASED THE GENESIS G90 IN ARIZONA, THERE IS NO PROTECTION UNDER LEMON LAW. REQUEST THE ADMINISTRATION LOOK INTO A LEMON LAW ON LEASED VEHICLES. I HAVE A CAR THAT EVERY TIME WE TAKE IT ON A TRIP THE AIR BAGS GO OUT. GENESIS SAYS TOO BAD WE WILL RESET LIGHT OR REPAIR EVERY TIME IT HAPPENS, AND THEY DO. HOWEVER WE RIDE ON TRIPS WITH NO AIR BAGS ON A NEW CAR. *JB

6/17/2019

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

1 Report5% of total

Previewing the first 1 complaint summaries.

On 01/16/22 at approximately 2305 hours, I was driving north on PA 743. I was traveling approximately 40 MPH in a posted 55 MPH zone due to snowy weather conditions. One adult was in the front passenger seat, 2 children were in car seats in the rear driver and passenger side. The road was level and straight. Suddenly, for no apparent reason, every warning light in the dashboard illuminated at once. The LED screen was rapidly displaying messaged such as, "blind spot monitoring system malfunction, smart BDS braking system malfunction, check smart high beam, check PSB, shifter malfunction, traction control malfunction, ESC malfunction, ABS malfunction, etc...". Immediately after traction control malfunctioned, the vehicle violently fishtailed, as if on the receiving end of a PIT maneuver, and crossed over the south bound lane. It continued off of the roadway and into a ditch, stopping several feet away from a fence. At that point, nothing was functional. Restarting the vehicle multiple times did not remedy anything. The vehicle was towed to the dealership. After approximately two months, Genesis USA advised they were unable to find any issues with the vehicle and it would soon be available to be picked up. Both the dealership and a third party(hired by Genesis) inspected the vehicle . The results of the third party inspection were unavailable.

3/27/2022

LANE DEPARTURE: ASSIST

1 Report5% of total

Previewing the first 1 complaint summaries.

On 01/16/22 at approximately 2305 hours, I was driving north on PA 743. I was traveling approximately 40 MPH in a posted 55 MPH zone due to snowy weather conditions. One adult was in the front passenger seat, 2 children were in car seats in the rear driver and passenger side. The road was level and straight. Suddenly, for no apparent reason, every warning light in the dashboard illuminated at once. The LED screen was rapidly displaying messaged such as, "blind spot monitoring system malfunction, smart BDS braking system malfunction, check smart high beam, check PSB, shifter malfunction, traction control malfunction, ESC malfunction, ABS malfunction, etc...". Immediately after traction control malfunctioned, the vehicle violently fishtailed, as if on the receiving end of a PIT maneuver, and crossed over the south bound lane. It continued off of the roadway and into a ditch, stopping several feet away from a fence. At that point, nothing was functional. Restarting the vehicle multiple times did not remedy anything. The vehicle was towed to the dealership. After approximately two months, Genesis USA advised they were unable to find any issues with the vehicle and it would soon be available to be picked up. Both the dealership and a third party(hired by Genesis) inspected the vehicle . The results of the third party inspection were unavailable.

3/27/2022

LATCHES/LOCKS/LINKAGES:TRUNK LID:LATCH:EMERGENCY MECHANICAL RELEASE

1 Report5% of total

Previewing the first 1 complaint summaries.

The internal trunk release latch will not open the trunk. A person inside the trunk compartment may become trapped, increasing their risk of injury. - The trunk latch failed. It is available for inspection, upon request. - A person inside the trunk compartment may become trapped, increasing their risk of injury. - The problem has been confirmed by the dealer (Courtesy Hyundai in Tampa, FL) - The component has not been inspected by police, manufacturer, or others. - There are no warning lamps or messages prior to the problem occuring.

1/4/2023

TIRES

1 Report5% of total

Previewing the first 1 complaint summaries.

ProContact GX-SSR CONT M 2754019 SL101H SL BSW

5/27/2025

About This Data

Data and Methodology

MethodologyHow we score →

Scores are derived from NHTSA recalls and owner complaints, normalized by vehicle segment averages.

FAQ

What are the most common owner complaints for the 2018 Genesis G90?

The most reported complaint category for the 2018 Genesis G90 is ELECTRICAL SYSTEM, with 5 owner reports. That is about 24% of all complaints logged here. Other recurring themes include ELECTRICAL SYSTEM, ENGINE, FUEL/PROPULSION SYSTEM.

Are complaints about the 2018 Genesis G90 a serious warning sign?

Potentially. 12 complaint reports fall into higher-attention systems such as brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components. That does not prove every vehicle has a defect, but repeated complaints in those systems justify a more careful pre-purchase inspection.

How should buyers use complaint data for the 2018 Genesis G90?

Use complaints as an early pattern to investigate, not a standalone verdict. Start with the top complaint categories, compare those themes against the recall report and maintenance guide, then inspect service records for evidence that the same problem areas were already addressed. If the same issue appears repeatedly across complaints and recalls, treat it as a real ownership-risk flag.

Are complaints about the 2018 Genesis G90 severe?

12 complaint reports involve higher-attention systems such as brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components, which is enough to justify a focused inspection before purchase.

Complaint list entries are sourced from owner-submitted NHTSA ODI records.

Read complaint summaries

Genesis G90: How should complaint data influence buying decisions?

Use complaint patterns together with recalls and maintenance guidance to estimate ownership risk and inspection priorities.

Carfocal links complaint data directly to recall and maintenance routes for the same model year.

Return to full vehicle report
Complaint entries
21
Top-topic view
5 grouped topics shown
Primary source
NHTSA ODI owner complaint records

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In this guide

  1. 01Overview
  2. 02Common Problems
  3. 03Owner Complaints
  4. 04Data and Methodology

Start here

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