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2018 Genesis G90 Problems, complaints & recalls

Owners have filed 16 complaints about the 2018 Genesis G90 with NHTSA, most often about the electrical system (5) and the engine & cooling (4). Those complaints describe 1 crash. It is covered by 4 recalls, the latest in March 2024 for the turbo / supercharger. For comparison, the 2017 has 27 and the 2019 has 6.

NHTSA data checked

CAbout as many problems as a typical G90 year, for its age

#161 most complained-about 2018 vehicle

Complaints
16
Recalls
4
Crashes
1
Fires
0
Injuries
0
Deaths
0

Most common 2018 Genesis G90 problems

Share of all 16 complaints. One complaint can name more than one area. Tap an area for its complaints and recalls.

2018 Genesis G90 recalls 4

Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do

Engine and engine cooling: turbo / supercharger

24V19100028,439 vehicles affected

The problem
Hyundai Motor America (Hyundai) is recalling certain 2018-2020 Genesis G80, 2017-2022 G90, and 2019-2022 G70 vehicles equipped with a 3.3-liter V6 turbocharged engine. The left turbocharger oil feed pipe may deteriorate and leak oil.
The risk
An oil leak in the presence of hot engine components can increase the risk of an engine compartment fire.
The fix
Dealers will replace the left turbocharger oil feed pipe, free of charge. Owner notification letters were mailed May 3, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 019G. This recall expands and replaces recall number 19V-538. Vehicles previously repaired under 19V-538 will need to have the new remedy completed.

Electrical system: solenoid

24V10700090,907 vehicles affected

Park outside
The problem
Hyundai Motor America (Hyundai) is recalling certain 2015-2016 Genesis, 2017-2019 Genesis G80, Genesis G90, and 2019 Genesis G70 vehicles. Water may enter the starter solenoid and cause an electrical short, which can result in an engine compartment fire while parked or driving.
The risk
An engine compartment fire while parked or driving can increase the risk of injury.
The fix
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will install a remedy relay kit in the engine junction box, free of charge. Owner notification letters were mailed July 15, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's numbers for this recall are 254(H) and 018G(G).

Engine and engine cooling: manifold / header / muffler / tail pipe

19V5380008,059 vehicles affected

The problem
Hyundai Motor America (Hyundai) is recalling certain 2018 Genesis G80 and 2017-2018 Genesis G90 vehicles equipped with 3.3 liter turbocharged engines. The turbocharger oil supply pipe may have a loose seal, causing oil to leak onto the exhaust manifold.
The risk
Oil leaking onto the exhaust manifold increases the risk of a fire.
The fix
Hyundai will notify owners, and dealers will replace the turbocharger oil supply pipe, free of charge. The recall began October 3, 2019. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 003G.

Visibility: windshield

18V30500037 vehicles affected

The problem
Hyundai Motor America (Hyundai) is recalling certain 2018 Hyundai Genesis G80 and Genesis G90 vehicles. The windshield and rear window on these vehicles may have been installed with incorrect primer, potentially reducing the glass bonding strength.
The risk
If the glass bonding strength is reduced over time, the windshield and rear window may detach while driving, increasing the risk of a crash.
The fix
Hyundai will notify owners, and dealers will replace the front and rear glass, free of charge. The recall began on July 6, 2018. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 001G.

What owners say

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16 complaints about the 2018 Genesis G90

Newest first, as filed with NHTSA by owners.

Wheels & tires

ProContact GX-SSR CONT M 2754019 SL101H SL BSW

Filed Incident TiresNHTSA 11663245
Electrical systemEngine & cooling

vehicle went dead. replaced the battery. Started after replacement but went dead a few days later. Towed to dublin CA genesis. Diagnosed as water corrosion to wiring harness. vehicle has less than 22000 miles, other than car washes and normal winter driving in CA. Genesis does have a recall for water intrusion NHTSA ID# 24v107000. I believe my issue is related to this recall but the dealership doesnt think so.

Filed Incident Electrical system · EngineNHTSA 11603743
Electrical system

The contact owns a 2018 Genesis G90. The contact received notification of NHTSA Campaign Number: 24V107000 (Electrical System); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The contact attempted to make the manufacturer aware of the issue; however, was unable to reach a representative. The contact had not experienced a failure. VIN tool confirms parts not available.

Filed Incident Electrical systemNHTSA 11598256
Electrical system

The contact owns a 2018 Genesis G90. The contact received notification of NHTSA Campaign Number: 24V107000 (Electrical System) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

Filed Incident Electrical systemNHTSA 11588425
Body, doors & structure

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.

Filed Incident Latches / locks / linkagesNHTSA 11500071
Electrical systemDriver assistanceCrash

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...

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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.

Filed Incident Electrical system · Lane departure · Forward collision avoidanceNHTSA 11458509
Other & unknown

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...

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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.

Filed Incident Unknown or otherNHTSA 11436291
Engine & cooling

Tl* the contact owns a 2018 genesis g90. The contact stated when stopped at a traffic light and attempting to accelerate, the vehicle hesitated for a few seconds before accelerating. The contact took the vehicle to the local dealer towne hyundai (3170 nj-10, denville, nj 07834) however, the mechanic was unable to duplicate the failure or retrieve a fault code. The failure persisted. The manufacturer was notified of the failure. The failure mileage was 19,677.

Filed Incident EngineNHTSA 11390674
Electrical system

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.

Filed Incident Electrical systemNHTSA 11344044
Engine & cooling

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.

Filed Incident EngineNHTSA 11299612
Other & unknown

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.

Filed Incident Unknown or otherNHTSA 11244374
Airbags

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...

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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

Filed Incident Air bagsNHTSA 11220643
Body, doors & structure

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

Filed Incident StructureNHTSA 11172002
Transmission & drivetrain

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

Filed Incident Power trainNHTSA 11143445
Fuel system

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...

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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.

Filed Incident Fuel / propulsion systemNHTSA 11114314
Transmission & drivetrainEngine & coolingFuel system

SEE UPLOADED LETTER ATTACHED

Filed Incident Power train · Engine · Fuel / propulsion systemNHTSA 11096777

Genesis G90: every year compared

YearComplaintsRecallsCrashesFiresTop problemGrade
20224200Driver assistanceB
20215110Driver assistanceA
20203110Wheels & tiresA
20196200Electrical systemA
201816410Electrical systemC
201727330Engine & coolingC
All G90 years

2018 Genesis G90 vs rivals

VehicleComplaintsRecallsCrashesGrade
2018 Genesis G901641C
2018 Genesis G8010078FCompare
2018 Genesis G80 Sport7902FCompare

More sales usually means more complaints, so compare similar vehicles of the same year. The grade compares each vehicle with its own model's other years.

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Questions about the 2018 Genesis G90

Does the 2018 Genesis G90 have any recalls?

Yes - NHTSA lists 4 recalls for the 2018 Genesis G90: turbo / supercharger (March 2024); solenoid (February 2024); manifold / header / muffler / tail pipe (July 2019); windshield (May 2018). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.

What are the most common problems with the 2018 Genesis G90?

By the complaints owners filed with NHTSA, the most common problem areas are the electrical system (5), engine & cooling (4), fuel system (2).

How many complaints has the 2018 Genesis G90 had?

16 complaints have been filed with NHTSA, the first on May 18, 2018 and the latest on May 27, 2025. Of these, 1 describe a crash and 0 a fire, and together they report 0 injuries and 0 deaths.

Is the 2018 Genesis G90 a reliable vehicle?

Its Safety Index is 56 out of 100 (grade C: about as many problems as a typical Genesis G90 year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.

Which Genesis G90 years have the most complaints?
What should I do if my 2018 Genesis G90 has a problem?

If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data

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