How to Detect a Tamper Condition
If 
is pressed and the
horn
sounds, an attempted break-in
occurred while the system was
armed.
If the alarm has been activated, a message will appear on the DIC.
See Anti-theft Alarm System Messages for additional information.
See also:
Luggage Carrier
CAUTION:
If you try to carry something on top of
your vehicle that is longer or wider than
the luggage carrier — like paneling,
plywood, a mattress and so forth — the
wind can catch it as y ...
Automatic Dimming Rearview Mirror
The vehicle may have an automatic dimming inside
rearview mirror with OnStar® and/or a compass
display. Automatic dimming reduces the glare from
the headlamps of the vehicle behind you. The dim ...
Tire Inspection
We recommend that the tires,
including the spare tire, if the
vehicle has one, be inspected
for signs of wear or damage at
least once a month.
Replace the tire if:
• The indicators at thre ...