Problems · NHTSA complaints

2018 Lexus GX460 problems

Owners filed 9 complaints about the 2018 Lexus GX460 with NHTSA between May 2018 and Jul 2026. The most-cited component is suspension (3).

Complaints
9
Filed with NHTSA
Crashes
2
Reported by owners
Fires
0
Reported by owners
Injuries
3
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Suspension3
  2. Air bags2
  3. Back over prevention1
  4. Electrical system1
  5. Power train1
  6. Wheels1
  7. Service brakes1
  8. Steering1
  9. Other / unknown1

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 5, 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
20184
20190
20203
20210
20220
20230
20240
20251
20261

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

Suspension

3 reports
“I WENT TO NEW COUNTRY LEXUS DEALER I COMPLAINED THREE TIMES THEY PUT A LOT OF MILEAGE TEST DRIVING IT AND KEPT OVER 24 HOURS AND SAID THERE WAS NOTHING WRONG WITH IT. THEY STILL MAKE THE SAME NOISE IN THE SUSPENSION. I WOULD LIKE TO TELL PEOPLE NOT TO BUY LEXUS IS JUNK I'VE DRIVEN 2 CARS FROM THIS COMPANY AND IT SUCKS AND IS JUNK AND PLEASE DON'T GO THERE. THEY ARE ROUND NEVER RETURN CALLS. ALL THEY WANT IS YOUR MONEY. AGAIN PLEASE DON'T BUY LEXUS CARS, I'VE HAD ALMOST 6 YEARS OF EXPERIENCE AND IS COMPLETE JUNK. THANK YOU”
Owner complaint to NHTSAFiled Aug 29, 2020Suspension, Unknown or otherODI 11351964

Air bags

2 reports1 crash
“I am writing to demand a recall for a widespread and well-documented defect involving the sunroof drain lines in the Lexus GX460. Owners across multiple model years report that these drains frequently clog, disconnect, or deteriorate, resulting in severe water intrusion into the cabin. This defect is more than an inconvenience. Water intrusion routinely damages the headliner, carpets, and—most concerning—the electrical systems routed under the dash and along the floorboards. Owners have documented failures including: Electrical shorts in junction boxes and harnesses near the driver footwell. Burnt circuits in side mirrors and modules after water exposure. Malfunctioning sensors, warning lights, and throttle response issues directly linked to water entry. Mold growth and corrosion under the dash from standing water. Supporting Evidence from Owners & Forums: GX460 owners have documented water intrusion from clogged drains causing shorts in wiring harnesses and electrical boards. In one case, water damage burned side mirror circuits and caused multiple dashboard warnings. (Source: JustAnswer Lexus mechanic) On ClubLexus forums, GX owners describe water pooling in…”
Owner complaint to NHTSAFiled Sep 25, 2025Electrical system, Air bagsODI 11689659

Back over prevention

1 report
“The back up camera would go black when reversing, creating a dangerous situation. It’s a known issue with the GX 460 model that when the radio gets corrupted and the infotainment screen goes black it will cause the back up camera to not function properly! I reached out to Lexus and they confirmed the issue is a bad logic (mother ) board that causes this and since it’s out of warranty they will not honor the repair or replacement of this highly dangerous situation. Your assistance is much appreciated!”
Owner complaint to NHTSAFiled Jul 25, 2026Back over preventionODI 11752819

Electrical system

1 report

Power train

1 report
“THERE IS A THUD THAT OCCURS IN THE DRIVE TRAIN WHEN ACCELERATING FROM A STOP, OR ACCELERATING FROM A ROLL. THE DEALER SAID ITS NORMAL, BUT IT CANNOT BE NORMAL. IT IS A LITERAL THUD. I HAVE HEARD THIS THUD COUNTLESS TIMES OVER THE LAST YEAR SINCE WE BOUGHT THE CAR. I HAVE ALSO READ ON MANY FORUMS THAT OTHER PEOPLE HAVE THIS SAME ISSUE.”
Owner complaint to NHTSAFiled Jan 15, 2020Power trainODI 11299580

Wheels

1 report
“CAR BE GOOD. JUST NEED FULL GAS 2 YEAR.”
Owner complaint to NHTSAFiled Aug 8, 2018WheelsODI 11118446
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 5, 2026

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