Problems · NHTSA complaints

2024 Genesis G-Class problems

Owners filed 7 complaints about the 2024 Genesis G-Class with NHTSA between Oct 2024 and Aug 2026. The most-cited component is electrical system (2).

Complaints
7
Filed with NHTSA
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
1
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Electrical system2
  2. Service brakes2
  3. Lane departure2
  4. Exterior lighting1
  5. Vehicle speed control1
  6. Engine1
  7. Forward collision avoidance1
  8. Other / unknown2

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 9, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20241
20251
20265

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Electrical system

2 reports3 related recalls
“A 2024 Genesis G70 with 10,860 miles suffered a severe multi-system safety failure. While driving at highway speeds, the vehicle executed unexpected, unprompted automatic emergency braking (phantom braking) X2 with no forward threats present, creating an immediate highway collision hazard. Prior to this, the forward-facing cabin multifunction camera assembly near the rearview mirror experienced an electrical short and thermal runaway event, reaching a recorded surface temperature of 363°F and causing occupant blister burns to fingers. The failure caused a total collapse of the ADAS sensor grid, shutting off the Adaptive Cruise Control, Lane Keeping systems, HDA, etc. Additionally, the vehicle exhibits a severe rear differential/driveline humming, a drastic drop in fuel economy to 10.3 MPG, an A/C condensation line blockage flooding the lower undercover, and a replacement headlight housing with a dangerous 25-foot dead spot. Werner Hyundai looked at the vehicle which was 3 days days without resolution, and it has now been flatbedded to Jenkins Genesis of Ocala. The vehicle remains an unresolved, dangerous safety defect. This has been 39 days since this started.…”
Owner complaint to NHTSAFiled May 30, 2026Electrical system, Vehicle speed control, Service brakesODI 11740998

Service brakes

2 reports
“I own a 2024 Genesis G90 with two active NHTSA recalls: 25V474 and 25V833. On April 19, 2026, the vehicle suffered a total electrical failure: “Check brake system” warning Engine would not start Electronic door handles failed; occupants trapped inside for over 20 minutes Turn signals operate abnormally The dealer previously repaired only by reset (no recall fix). This is a life-threatening safety defect affecting brakes, electrical system, and egress. Please open an investigation and enforce recall repairs. I am pursuing Lemon Law relief.”
Owner complaint to NHTSAFiled Apr 20, 2026Electrical system, Service brakes, EngineODI 11732542

Lane departure

2 reports
“I purchased a new 2024 Genesis g90 vehicle from Key Genesis in Jacksonville Florida. I live in Navarre Florida near Pensacola so I took the vehicle into the Pensacola dealership for service. For almost a years time I have been notifying the dealership of a serious safety issue wirh the vehicle. There is a condition where the vehicle slams on the brakes on the highway for no apparent reason. The vehicle slams on the brakes at highway speeds while straddling two lanes. A vehicle in either lane being me could easily crash into the rear of my car when it does this. It took the dealership and Genesis corporate almost 8 months to confirm the problem, even though I had videos of the event happening. They wouldn't accept my video evidence. Consequently, they finally verified the problem and have been trying to fix it for months. They have no idea why it is doing this or how to fix it. But they have deemed the vehicle to be unsafe to drive and will not give it back to me. I have asked them to replace it with a new vehicle but they have refused. I went through the Lemon Law option and all they would offer me was to repurchase it for $23,000 less than what I have into it.…”
Owner complaint to NHTSAFiled May 14, 2025Forward collision avoidance, Lane departureODI 11661048

Exterior lighting

1 report
“The contact owns a 2024 Genesis G70. The contact stated that there was condensation building up inside the headlight assembly, causing the headlight illumination to be reduced, and the turn light brightness was dull. The vehicle was taken to a local dealer, where it was determined that there was a crack in the headlight housing. The dealer claimed that the crack was caused by a crash. The contact believed that the failure was a safety defect and not damage caused by a crash. The contact stated that there was a high number of other Genesis vehicle owners who had experienced the exact same failure. The manufacturer was not notified of the failure. The failure mileage was not available.”
Owner complaint to NHTSAFiled Aug 31, 2026Exterior lightingODI 11761082

Vehicle speed control

1 report

Engine

1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.