There are 5 owner-reported electrical system complaints for the 2012 Lexus ESin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2012 Lexus ES350. The contact stated while driving approximately 65 MPH, the key was detected, and trunk open warning lights illuminated. Additionally, the doors would lock and unlock independently. The vehicle was taken to a local dealer where it was diagnosed with needing the trunk latch replaced. The vehicle was not repaired. The manufacturer was informed of the failure and agreed to cover the cost of the partial repair. The failure mileage was approximately 55,000. The VIN was not available.
ALL 4 DOORS STOPPED LOCKING BY KEY FOB, INSIDE SWITCHES OR EXTERIOR DOOR HANDLE SWITCHES OR WHEN PUTTING THE TRANSMISSION IN GEAR. NO CLICK IS HEARD WHEN TRYING TO LOCK DOORS BUT CLICKING IS HEARD WHEN HITTING THE UNLOCK SWITCHES. DOORS WILL UNLOCK ELECTRONICALLY/ ELECTRICALLY WHEN THEY ARE MANUALLY LOCKED FROM INSIDE THE VEHICLE. A PREVIOUS REPORT INDICATED A SIMILAR PROBLEM THAT A DEALER DIAGNOSED AS ALL OF THE DOOR LOCKS NEEDED REPLACED, WHICH MAKES NO SENSE THAT THE COULD ALL FAIL MECHANICALLY AT THE SAME TIME. THE PROBLEM APPEARS ELECTRICAL IN NATURE AND IS DANGEROUS SINCE DOORS CAN'T BE LOCKED WHEN THE CAR IS IN MOTION OR IN A SAFETY SITUATION WHERE LOCKING THE DOORS COULD PREVENT INTRUDER ENTRY.
THE HORN QUIT WORKING. FOUND IT WORKS ONLY WHEN THE STEERING WHEEL IS TURNED CLOSE TO END OF CLOCKWISE AND COUNTERCLOCKWISE DIRECTION. DEEMED SAFETY HAZARD SINCE NO HORN SOUND TO ALERT PEDESTIANS, BICYCLISTS AND OTHER DRIVERS OF DANGER. WASN'T COVERED UNDER WARRANTY AND COST $690 TO REPLACE STEERING WHEEL CLOCK SPRING.
TL* THE CONTACT OWNS A 2012 LEXUS ES350. THE CONTACT STATED THE PERSON DRIVING SAW SMOKE STARTING TO EMIT FROM UNDER THE PASSENGER SEAT, AFTER THE SEAT HEATER WAS ACTIVATED. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN FOUND A SMALL BURN HOLE ON THE LEFT SIDE OF THE DRIVER SEAT. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 15,200. UPDATED 2/24/15*CN LEXUS INFORMED THE CONSUMER, THE BURN HOLD WAS NOT LOCATED NEAR THE SEAT HEATER GRID OR WHERE THE ELECTRICAL WIRING WAS LOCATED AND THEREFORE, THEY WOULD NOT COVER THE REPAIRS. UPDATED 03/02/15*JB
ON THE PASSENGER SIDE DASHBOARD NEXT TO TEMPERATURE CONTROL SWITCH, DASHBOARD VINYL IS MELTING, IT HAS BUBBLE AND ONE BUBBLE WAS BROKEN TO MAKE A HOLE. I NOTICED IT ON APRIL 1, 2014. WHEN I CHANGED THE CABIN AIR FILTER ON MARCH,31 IN GLOVE COMPARTMENT, I DIDN'T SEE IT. I BROUGHT MY CAR TO NEW COUNTRY LEXUS AND DESCRIBED THE ISSUE HOPING THAT THEIR TECHNICIAN MAY SEE ISSUE WITH TEMPERATURE CONTROL RESISTANCE MAY CAUSING WIRING TO HEAT THAT IS CAUSING VINYL TO MELT. BUT THEY DIDN'T SEE IT THAT WAY, INSTEAD THEY ARE SAYING THAT I MIGHT HAVE DROPPED A CHEMICAL ON IT, I SWORE TO THEM I DIDN'T USE ANY CHEMICAL AND I DON'T HAVE ANY PASSENGER EXCEPT MY WIFE. I DON'T WANT TO FIX THE VINYL UNTIL I FIX WHAT CAUSED IT. BUT, UNFORTUNATELY LEXUS DEALERSHIPS TRAINED TECHNICIAN DIDN'T SEE ANYTHING CAUSING IT FROM THE INSIDE THE DASHBOARD. BY TAKING SECOND OPINION FROM OUTSIDE REPAIR SHOP, HE MENTIONED THE TEMPERATURE CONTROL RESISTANCE MAY BE HEATING UP THE WIRE THAT MIGHT HAVE CAUSED THE VINYL TO MELT. I FEEL THAT THIS IS A REAL ISSUE AND IT MAY CAUSE A FIRE. I HAVE OPENED A CASE WITH LEXUS CORPORATE AND A CASE MANAGE PROMISED TO CALL ME BY APRIL 4, 2014. UPDATED 04/17/14
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026