TECHNICAL SERVICE BULLETIN: SMART KEY OPERATION LOGIC IMPROVEMENT - This bulletin provides the procedure to upgrade the software of the Integrated Body Control Unit (IBU) system on some 2023MY Telluride (ON) vehicles produced from January 3, 2023 through June 5, 2023 equipped with Personal Identification Card (PIC) handles. The affected vehicles may exhibit an inoperative lock/unlock function with a potentially drained 12V battery.
