Testing the Alarm
To test the alarm:
1. From inside the vehicle, lower the driver side window, and open the driver door.
2. Press 
.
3. Get out of the vehicle, close the door, and wait for the security light to go out.
4. Reach in through the window, unlock the door with the manual door lock, and open the door.
This should set off the alarm.
If the alarm does not sound when it should, but the headlamps flash, check to see if the horn works.
The horn fuse may be blown.
To replace the fuse, see Fuses and Circuit Breakers on page 10‑31.
If the alarm does not sound or the headlamps do not flash, see your dealer for service.
See also:
Pulling a Trailer
Important points for pulling a trailer:
• There are many different laws, including speed limit restrictions, having to do with trailering.
Make sure the rig will be legal, not only where you live ...
General Information
This maintenance section applies to vehicles with a gasoline engine. For diesel engine vehicles, see the maintenance schedule section in the Duramax Diesel Supplement.
Your vehicle is an important in ...
Finish Care
Application of aftermarket clearcoat sealant/wax materials is not recommended. If painted surfaces are damaged, see your dealer to have the damage assessed and repaired. Foreign materials such as calc ...