Lock All Doors (Second Operation)
WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
On vehicles equipped with CTD, momentarily press the LOCK button a second time within 5 seconds in order to perform the following functions:
- Flash the exterior lights (if selected ON in personalization).
- Chirp the horn (if selected ON in personalization).