GM Service Manual Online
For 1990-2009 cars only

Caution: It can be dangerous to drive with the tailgate open because carbon monoxide (CO) gas can come into your vehicle. You can not see or smell CO. It can cause unconsciousness and even death. If you must drive with the tailgate open or if electrical wiring or other cable connections must pass through the seal between the body and the tailgate:

   • Make sure all other windows are shut.
   • Turn the fan on your heating or cooling system to its highest speed and select the control setting that will force outside air into your vehicle. See Climate Control System .
   • If you have air outlets on or under the instrument panel, open them all the way. See Engine Exhaust .

Tailgate Lock Release

Use your key to lock or unlock your tailgate.

If you have a convertible, you can still open or close the tailgate with the rear window closed.