Unlock All Doors (Second Operation)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 GMC Yukon XL, 2004 GMC Yukon, 2004 Chevrolet Tahoe, 2004 Chevrolet Suburban, and 2004 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.