2016 Toyota Tacoma Seats Problems

Your heated seat stopped working because the control module connector and wires melted, disabling the heating function. The melted connector prevented power from reaching the heating element. Repairing this will likely require replacing the heated seat control module and wiring harness.

The seat heater thermostat under the driver’s seat melted and charred while heater was in use Fire danger. Dealer said this happens to a small number of vehicles of similar age and manufacture date. This was inspected by the dealership. No lights or warns came on before, during or after. I noticed the seat heater stopped working. I inspected the fuse. The fuse was not burned out. I found the melted part under the seat in the heater wiring harness assembly. I have removed the fuse at this time to prevent energizing the harness further.

I had a heated seat failure. I do have the parts available for inspection. I removed the seat to find that the sub assy-seat heater and connecting wiring harness had been burnt which could potentially cause a fire. Toyota part numbers effected are: sub assy - 87501-0C020, wiring harness in the heater assy - 87510-04040 which was replaced by 87510-04050. I reported the issue to Toyota. There were no warning lights or indicators that there was an issue. The heated seat indicator light still shows the seat as on even though it was not heating. Toyota service bulletin T-SB-0130-18 has been issued about this issue, so Toyota obviously knows there is an issue. I've read in forums online that the root issue is the wiring not being large enough to handle the power to the seat, so ultimately replacing the factory parts would not guarantee the issue will not happen again.

What component or system failed or malfunctioned, and is it available for inspection upon request? Heated seat heating module. How was your safety or the safety of others put at risk? Module burned out during usage and emitted fire odor and smoke when burnt out (potential fire hazard if kept on). Has the problem been reproduced or confirmed by a dealer or independent service center? [XXX] Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Unknown. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? None. 2016 Tacoma limited heated seat heating module overheated/burned out with slight smoke under seat during minimal usage (texas based). TSB [XXX] released in October 2018, about the time most of the 2016 (produced in 2015) are going out of warranty, and based on frequency of usage and locale (warmer climates observe less usage) - also even though parts used are the same, VIN is apparently not affected. Toyota will not honor TSB even though the burn out can be a potential fire hazard if not known/smelled especially while traveling and buckled into seat belt (similar to Mercedes heated seats caught on fire). No notice provided by Toyota of TSB at time of issue. Item should be a recall as it affects many 2016-2018 Tacoma's and is a fire safety and burn hazard. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

3RD GENERATION (2016+) TOYOTA TACOMA'S HAVE A KNOWN TECHNICAL SERVICE BULLETIN REGARDING LEAKING OF THE 3RD BRAKE LIGHT. DURING RAINFALL AND DRIVING THROUGH A CARWASH, WATER WILL LEAK INTO THE DRIVERS COMPARTMENT RESULTING IN WATER DAMAGE AND POTENTIAL FOR MOLD AND MILDEW. A QUICK INTERNET SEARCH WILL RESULT IN THOUSANDS OF OWNERS REPORTING THIS ISSUE. TOYOTA REFUSES TO COVER THIS ISSUE IF YOU ARE OUTSIDE OF THEIR WARRANTY PERIOD, WHICH CAN RESULT IN $1000+ LABOR BILL TO REPLACE A FAULTY GASKET. SEEING AS THIS IS A POTENTIAL HEALTH RISK TO OWNERS, THIS SHOULD BE A MANDATORY RECALL TO REPLACE FOR OWNERS OUTSIDE OF THE WARRANTY PERIOD.

WHILE VEHICLE WAS IN MOTION, TURNED ON, AND IN MOTION, THE AMP FOR THE DRIVER SIDE FRONT SEAT HEATER PRETTY MUCH MELTED. I SMELT AN ELECTRICAL BURNING SMELL, AND WAS ABLE TO LOCATE THE SOURCE.

I NOTICED WHEN MY DRIVER SEAT HEATER WAS IN THE "ON" POSITION, THE SEAT WAS NOT HEATING UP. ELECTRICAL WIRING/CONNECTOR FOR THE HEATED SEAT MODULE LOCATED UNDER THE DRIVER SEAT OVERHEATED OR ARCED CAUSING THE CONNECTOR (S) TO MELT POSING A SAFETY/FIRE HAZARD AND RENDERING THE HEATED SEAT INOPERABLE. TSB FROM TOYOTA COVERS THIS UP TO 3YEARS/36,000 MILES. MILEAGE AT TIME OF FAILURE: 61,000 MILES.

SEAT HEATER MODULE CONNECTOR HAS FAILED AND BURNED/MELTED THE CONNECTOR. APPEARS TO BE A FIRE CONCERN.

THE DRIVER'S SIDE SEAT HEATER STOPPED WORKING IN MY 2016 TACOMA LIMITED 4X4 DELIVERED IN JANUARY 2016. UPON INSPECTION IT WAS FOUND THAT THE WIRING HARNESS INTO THE SEAT HEATER AMP HAD A MELTED WIRE, DAMAGING BOTH THE AMP AND THE WIRING HARNESS. OTHER INSTANCES OF THIS SAME SEAT HEATER FAILURE WITH MELTED WIRING WERE FOUND ONLINE IN THE TACOMAWORLD.COM FORUMS. I TOOK IT TO THE DEALER TO BE CONFIRM THE ISSUE AND HAVE HAVE A QUOTE TO FIX IT. MILEAGE IS 33,900

DRIVER'S SIDE REAR SEAT IS GETTING WET DURING HEAVY RAINS. THE LEATHER WILL BE SWELLED UP.

THE REAR SEATS DO NOT LOCK. FOR EXAMPLE, THE REAR SEATS HAVE A LOCKING MECHANISM UNDER THE SEAT. WHEN SEAT IS PUT BACK INTO ITS NORMAL POSITION IT DOES NOT LOCK. I HAD A 2001 AND THE SEAT LOCKED ONCE PUT INTO ITS NORMAL SITTING POSITION.