2017 Nissan Murano

Technical Incident Report: Electrical Component Failure Reference: Technical Service Bulletin NTB19-004 Part Number: 873D6-5AA6A (Control Unit/Actuator) Incident Overview On 2/16/26, the vehicle was being operated by the primary driver when a suspected electrical failure occurred. Upon subsequent inspection, the 873D6-5AA6A control unit and its associated wiring harness were found to be severely compromised by thermal damage. Detailed Observations: Thermal Damage: The control unit housing showed significant melting. Residual smoke was present during the inspection, indicating a high-temperature event caused by a short circuit or component failure. Harness Integrity: The wiring harness insulation was melted and charred. Due to the extreme heat, the plastic connector had become brittle and lost all structural integrity. Component Failure: During the attempt to disconnect the unit for safety inspection, the connector shattered, leaving the internal wiring of the harness exposed. Documentation: High-resolution photographs have been captured to document the state of the melted housing, the shattered connector, and the exposed wiring.

The seat heating function on my vehicle failed due to electrical components becoming so hot that they melted the control module connector. The issue has been reviewed and confirmed by a Nissan dealership's service department. The service manager stated that he and his team would not plug the control module connector back in without my express direction because they considered it a fire hazard and a safety risk. There was no warning of this failure; the component simply stopped working but remained a fire risk. The only way I learned of the control module melting was after having the dealer's service department diagnose why the feature was no longer working. From the dealer's diagnosis (in writing): "Driver's climate control seat control module connector melted. Recommend replacing driver's climate control seat control module and driver's front seat harness. Left driver's front climate control seat control module connector unplugged to prevent further issues with system." It is unknown when the component melted. The problem was diagnosed by a Nissan dealership's service department on 29 November 2023.

The contact owns a 2017 Nissan Murano. The contact stated that while his wife was driving approximately 70-75 MPH, the rear seat warmer overheated and burned the seat and the blanket on the seat. The contact called the dealer who stated that the seat needed to be replaced. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 80,000.

ON 02/09/2021 APPROXIMATELY 8PM, ARRIVED TO MY DESTINATION, TURNED CAR OFF, WENT INSIDE. APPROXIMATELY 1.5 HOURS LATER (9:30PM) WENT BACK TO MY CAR TO BRING MY SUITCASE AND PILLOW IN. WHEN I REMOVED MY PILLOW FROM THE BACK PASSENGER SIDE SEAT, NOTICED THE BIG SCORCHED AREA AND THE SEAMS WERE BRIGHT RED, THE SEAT WAS BURNING HOT TO TOUCH. BURNING SMELL WAS NOTED, AND THE SEAT SWITCH WAS STILL ON THOUGH THE CAR WAS OFF OVER A HOUR. THE OTHER SEATS WERE NORMAL ( COOL ) TO TOUCH. I IMMEDIATELY DISCONNECTED THE BATTERY CABLES AND STAYED BY THE CAR MAKING SURE THE SEAT AREA COOLED TO NORMAL. NOTE.....MY PILLOW WAS SCORCHED TOO. THE CAR IS A 2017 NISSAN MURANO, BOUGHT IT NEW.

HELLO, RECENTLY, I BOUGHT 2017 NISSAN MURANO PLATINUM. AFTER A MONTH, I NOTICED THAT WHEN I INCREASE HEATED SEAT TEMPERATURE TO MAXIMUM, ONE HALF(RIGHT) SIDE OF FRONT SEAT HEATING IS VERY HIGH AND OTHER HALF ACT NOT EVEN 50%. I CALLED NISSAN DEALER LOCALLY TO LOOK AND INVESTIGATE HEATING DISTRIBUTION ISSUE. ON THE SAME TIME I CALLED NISSAN CUSTOMER CARE AND EXPLAIN SITUATION. I WAS TOLD BY CUSTOMER CARE TO REPORT FINDINGS BACK TO THEM BASED ON DEALERSHIP RESPONSE. DEALERSHIP RESPONDED IT IS JUST A WAY DESIGN BY NISSAN FOR ALL MURANO, THERE IS NOTHING CAN BE DONE. IT'S JUST A WAY IT IS. I FEEL HELPLESS BY NISSAN OVERALL EXPERIENCE. NISSAN SHOULD BE ABLE TO STEP UP AND LOOKING INTO THIS ISSUE TO MAKE SURE HEATED SEAL HEAT DISTRIBUTION SHOULD BE UNIFORM, NOT LIKE ONE HALF OF SEAL GET VERY HIGH COMPARE TO OTHER HALF. THIS IS VERY POOR DESIGN WITH RESPECT TO HEATED SEAT SAFETY.