1996 Oldsmobile Bravada Owner's Manual - Page 59

Endgate Endgate Release There areseveral ways to release the endgate. However, the endgate glasswill not release if the vehicle is in gear. You can use you key to unlock the endgate from the outside. Insert the key in the endgate lock button and turn it counterclockwise. All doors will unlock. You may also use the Keyless Entry system described earlier. A CAUTION: It can be dangerous to drive with the rear window or endgate open because carbon monoxide (CO) gas can come into your vehicle. You can't see or smell CO. It can cause unconsciousness and even death. If you must drive with the rear window or endgate open or if electrical wiring or othercable connections must pass through theseal between the body and the rear window or endgate: 0 Make sure all windows are shut. Turn the fanon your heating or cooling system to itshighest speed with the setting on VENT. That will force outside air into your vehicle. See "Comfort Controls'' in the Index. If you have air outlets on or under the instrument panel, open them all the way. See "Engine Exhaust" in the Index. The endgate canbe opened without a key if the driver's door is unlocked.