1994 Buick Century Owner's Manual - Page 73
1994 Buick Century Manual
Page 73 highlights
Trunk/Liftgate Remote Trunk or Liftgate Release (Option) If you have this option, you'll find the button in the glove box. The trunk will unlock any time the ignition is ON. If you have the wagon, the liftgate will unlock when the ignition is ON and the transaxle is in " P ' (Park). Wagon Liftgate Operation r The liftgate on your wagon has a liftglass and a liftgate. NOTICE: Be sure there are no overhead obstructions before you open the liftgate. You could slam the liftgate into something and break the glass. ' ~ The door key opens the liftgate and the liftglass. Trunk Lock 71