Electrical SystemSep 16, 2026
MY 2027 · Over The Air · OTA_SA652_653_658_NOTES
RELEASE NOTES: OVER-THE-AIR: SERVICE ACTION SOFTWARE UPDATE FOR RCM, UWB AND SBCM (SA652/SA653/SA658) - This Over-the-Air (OTA) software update the Roof Control Module (RCM), Ultra-Wideband (UWB) and Side Body Control Module (SBCM) logic of certain 2027 Telluride vehicles. This update is designed to improve the controller type determination logic to remedy the sunroof operation anomaly, the connection and controller logic between Digital Key and Ultra-Wideband-supported smartphone devices has been improved to reduce 12V battery consumption and the Side Body Control Module (SBCM) to reduce noise that may occur during the folding and unfolding of the outside mirrors.
Visibility/WiperAug 21, 2026
MY 2027 · Service Bulletin/Repair Instructions · TSB_ELE434
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: SBCM SOFTWARE LOGIC IMPROVEMENT (SA658) - This bulletin provides information to upgrade the Side Body Zone Control Module - Driver ‘SBCM_DRV’ and Side Body Zone Control Module - Assist ‘SBCM_AST’ systems software on certain 2027MY Telluride (LQ2a) and 2027MY Telluride Hybrid (LQ2a HEV) vehicles produced from March 13, 2025 through August 27, 2025. Some of the affected vehicles may exhibit a popping noise from one or both outside sideview mirror(s) after the auto fold/unfold function is enabled and the vehicle is locked. This condition is caused by the SBCM sending an additional fold command after the mirrors have already completed the folding operation. This condition does not affect the ability of the mirror to fold or unfold.
Electrical SystemAug 6, 2026
MY 2027 · Service Bulletin/Repair Instructions · TSB_ELE431
TECHNICAL SERVICE BULLETIN: ULTRA-WIDE BAND SENSOR SOFTWARE UPDATE (SA652) - This bulletin provides information to upgrade the Ultra-Wideband Bluetooth Low Energy Master (“UWB_BLE_M”) system software on certain Digital Key 2-equipped 2027MY Telluride (LQ2a) vehicles produced from December 03, 2025, through June 04, 2026, and certain 2027MY Telluride Hybrid (LQ2a HEV) vehicles produced from December 04, 2025, through June 04, 2026. The improved software reduces power consumption from the vehicle’s auxiliary battery and enhances its performance by preventing the vehicle's auto-flush door handles from remaining extended for prolonged periods when a smartphone with Digital Key 2 remains nearby the parked vehicle. To extend the auto-flush door handles in this circumstance, the driver should press the lock/unlock indentation on either front door handle.