Unlock All Doors (Second Operation)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Press the UNLOCK button a second time within 3 seconds of the first press in order to perform the following functions:
- Unlock all doors.
- Flash the parking lamps twice.