Power Door Locks
Press 
or
on the Remote Keyless Entry (RKE) transmitter.
See Remote Keyless Entry (RKE) System Operation .
Premium Trim Shown, Up-Level Similar
(Lock): Press to lock the doors.
(Unlock): Press to unlock the doors.
See also:
Center Instrument Panel Fuse Block
The center instrument panel fuse block is located underneath the instrument panel,
to the left of the steering column. ...
Halogen Bulbs
WARNING
Halogen bulbs have pressurized gas inside and can burst if you drop or scratch
the bulb. You or others could be injured. Be sure to read and follow the
instructions on the bulb package. ...
Warranty
OnStar equipment may be
warranted as part of the new-vehicle
limited warranty. The manufacturer
of the vehicle furnishes detailed
warranty information. ...