Safety Belt Reminder Light
When the key is turned to RUN or START, a chime will sound for several seconds to remind you buckle your safety belt. The driver safety belt light will also come on and stay on for several seconds, then it will flash for several more.
You should buckle your seat belt.

This chime and light will be repeated if the driver remains unbuckled and the vehicle is in motion.
If the driver’s belt is buckled, neither the chime nor the light will come on.
See also:
Total safety and security approach
Terraza is engineered to be among the safest vehicles in the mid-van segment,
providing outstanding performance in real-world crashes. Notable features
include structural enhancements to its frame ...
OnStar Overview
If equipped, this vehicle has a
comprehensive, in-vehicle system
that can connect to a live Advisor
for Emergency, Security, Navigation,
Connection, and Diagnostic
Services.
The OnStar sy ...
Power Door Locks
Power Door Locks
(Unlock): Press to unlock all
doors.
(Lock): Press to lock all doors.
See “Power Door Locks” in Vehicle
Personalization. ...
