How to Detect a Tamper Condition
If 
is pressed and the horn sounds,
an attempted break-in has occurred while the system was armed.
If the alarm has been activated, the THEFT ATTEMPTED message will appear on the DIC. See Key and Lock Messages on page 5.29 for additional information.
See also:
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 system s ...
Memory Features
On vehicles with the memory feature, the controls on the driver door are used to program and recall memory settings for the driver seat and outside mirrors. ...
Sheet Metal Damage
If the vehicle is damaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to parts repaired or replaced to restore corrosion protection.
...