2018 Toyota Sienna Electrical Problems

You purchased a 2018 Toyota Sienna from a dealer that showed 57,000 miles at the time of sale. When you attempted to register the vehicle, you discovered the actual mileage was 175,152 miles — a significant discrepancy suggesting the odometer may have been tampered with or rolled back. This is a case of potential odometer fraud that should be reported to Toyota and your state's consumer protection agency.

Your 2018 Toyota Sienna's Safety Connect emergency system isn't working. The dealer has tried turning the data system on and resetting the DCM module twice, but it still hasn't come back online. You'll notice there are no lights showing on the overhead panel where the SOS button is located. This likely requires a dealer visit to diagnose and possibly replace the DCM (Data Communication Module) or related Safety Connect hardware.

The owner reported an electrical system issue affecting the airbags and engine components. No crash or fire was involved. The specific nature of the electrical problem was not detailed in the complaint.

APPEARS ALL THE TIME THE TIRE PRESSURE WARNING LIGHT .

TL* THE CONTACT OWNS A 2018 TOYOTA SIENNA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 20 MPH, THE MASTER WARNING LIGHT ILLUMINATED AND THE VEHICLE STALLED. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. AN UNKNOWN DEALER WAS NOTIFIED OF THE FAILURE. THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT WAS INFORMED THAT THE VIN WAS INCLUDED IN THE NHTSA CAMPAIGN NUMBER: 20V012000 (ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT STATED THAT THE VEHICLE EXPERIENCED THE FAILURE LISTED IN THE RECALL. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. THE FAILURE MILEAGE WAS 56,000. *BF CONSUMER STATED DEALER FIXED THE PROBLEM BY REPLACING THE TANK FUEL PUMP.*JB

3RD ROW POWER SEATS ARE MALFUNCTIONING AND ARE OPERATING WHILE VEHICLE IS IN MOTION. MULTIPLE TIMES, AND ON DIFFERENT DAYS, THE POWER SEATS HAVE STARTED TO CLOSE WHILE PASSENGER IS SEATED AND BUCKLED IN THE SEAT. OCCURRED TODAY WHILE ON THE HIGHWAY, AT HIGHWAY SPEED WHILE MY WIFE WAS SEATED IN THE DRIVERS SIDE 2 SEAT SPLIT. THE SEAT STARTED TO CLOSE ON ITS OWN - NO ONE TOUCHED ANY BUTTON AND WE HAD BEEN DRIVING FOR OVER AN HOUR. THE SEAT PUT PRESSURE ON HER UNTIL IT STOPPED IN A PARTIALLY CLOSED POSITION. THE SEAT BUTTONS THEN DID NOT WORK TO REOPEN THE SEAT BACK FOR SEVERAL MINUTES. THIS WOULD BE EXTREMELY DANGEROUS FOR A SMALL CHILD. THIS HAS HAPPENED IN A SIMILAR SCENARIO ON MULTIPLE OCCASIONS AND WE ARE CERTAIN THAT THE POWER SEATS ARE MALFUNCTIONING.