Problems · by component

2012 Toyota Highlander electrical system problems

30 owner complaints to NHTSA about the 2012 Toyota Highlander cite electrical system, 16% of all 191 complaints for this model year.

Complaints
30
16% of all complaints
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the electrical system

Verbatim from NHTSA complaints, newest first
“I think there is odometer fraud by this company selling this car. [XXX]”
Owner complaint to NHTSAFiled Jul 5, 2025Electrical system, Unknown or other, EngineODI 11671369
“2012 TOYOTA HIGHLANDER was locked & battery was dead. Could not unlock using either the key fob or the mechanical key in the fob. Was told even the mechanical key requires battery power.”
Owner complaint to NHTSAFiled Dec 1, 2023Electrical system, Unknown or otherODI 11557916
“This is the second Highlander Hybrid I've owned that has had the brake actuator and booster assembly fail affecting the functionality of the car's braking system. Replacing these two parts has an absurd price of over 3k at the dealership and other independent hybrid repair shops. My car only has 70k miles on it and I've read this issue applies to almost all other Toyota Hybrids. If most hybrid's brakes will fail eventually, putting at risk owners, why is there not a recall to fix this "not a matter of if, but when" possible life threatening issue?”
Owner complaint to NHTSAFiled Dec 10, 2022Electrical system, Service brakesODI 11496907
“Major issue with Airbags July 2021. A warning appeared shortly after Passenger Sensor malfunction, that stated “Check SRS Airbag System. Have your vehicle checked by dealer immediately.” Dealer did Diagnostic. Toyota Dealer has tried to fix airbags three times in three weeks but it fails within a day or so and warning comes back on. Toyota has issued a recall for 2012 Highlanders for seats and front airbag that describes the issue this vehicle has however Toyota Dealer said our Vin is not included. The recall is under Campaign no. 13V014000 Report Date Jan 16 2013 Component Seats.”
Owner complaint to NHTSAFiled Aug 8, 2021Electrical system, Air bags, SeatsODI 11428253
“CAR HAS OVER 117,000 MILES AND IS EXCESSIVELY CONSUMING OIL. THERE IS NO SIGN OF LEAKS ANYWHERE. I DO NOT GET ANY WARNING ANYWHERE ABOUT LOW OIL, ALL I SEE IS A SMALL MESSAGE THAT SOMETIMES BLINKS INDICATING 'OIL PRESSURE'. OIL IS NOT LASTING 1000 MILES. I THOUGHT MAYBE THE OIL WAS NOT PROPERLY FILLED BUT AFTER A SECOND OIL CHANGE, SAME HAPPENED, OIL EMPTY WITH LESS THAN 1000 MILES AFTER AN OIL CHANGE. CAR HAS BEEN ALWAYS KEPT WITH ALL RECOMMENDED MAINTENANCE AND ALL OIL CHANGES HAVE BEEN DONE EVERY 5,000 AS RECOMMENDED BY TOYOTA. HAVE NEVER BEEN IN ANY ACCIDENT THAT COULD CAUSE ANY ENGINE PROBLEM, SEEMS THIS IS A FACTORY DEFECT. IN THE ELECTRICAL PART, POWER BACK DOOR DOES NOT CLOSE/OPEN, THERE IS A RECALL FOR THAT BUT NO DEALERS IN MY AREA WILL FIX IT BECAUSE ONE OF THE PARTS THAT IS INSIDE THAT MOTOR IS NOT LISTED IN THE RECALL SPECS AND DEALERS WILL NOT FIX UNLESS I PAY. I TOOK THE CAR TO THE DEALER ABOUT 2 YEARS AGO. THIS REFERS TO THE WARRANTY ENHANCEMENT LETTER ZG4.”
Owner complaint to NHTSAFiled Feb 6, 2020Electrical system, EngineODI 11307417
“MY 2012 HIGHLANDER CURRENTLY HAS 110,000 MILES ON THE VEHICLE. AT THIS TIME NONE OF THE POWER DOORS LOCKS WORK WHEN THE KEY FOB OR DOOR BUTTON IS DEPRESSED. IT HAS BEEN CONFIRMED BY MY LOCAL TOYOTA DEALERSHIP, THAT ALL FOUR LOCK ACTUATORS ARE FAULTY. THE ESTIMATE TO FIX THIS PROBLEM WAS PRESENTED TO ME AT $2,000.00. I HAVE OWNED MULTIPLE CARS PRIOR TO THIS INCIDENT, MOST OF THEM BEING TOYOTAS AND I HAVE NEVER HEARD OF ALL FOUR DOOR LOCKS BEING DEFICIENT AT THE SAME TIME. I, ALONG WITH MANY OTHERS FEEL AS THOUGH THIS TYPE OF FAILURE IS UNACCEPTABLE AND MAY BE GROUNDS FOR A MASS RECALL DUE TO ITS FREQUENCY RATE.”
Owner complaint to NHTSAFiled Jan 29, 2020Electrical systemODI 11302931

Showing 6 of 30 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026NHTSA vehicle page

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

Other 2012 Highlander problem areas