2011 Chevrolet Suburban 2500 Owner's Manual - Page 51

Keys, Doors and Windows The liftgate or liftglass cannot be opened if the rear wipers are in motion. Attempting to open the liftgate or liftglass while the rear wipers are in motion will cause the release of the liftglass or liftgate to delay until the wipers are moved off the liftglass. Both the liftglass and liftgate have an electric latch. If the battery is disconnected or has low voltage, the liftglass and liftgate will not open. The liftglass and liftgate will resume operation when the battery is reconnected and charged. 2-13 Power Assist Steps The vehicle may have power assist steps. Vehicle Security This vehicle has theft-deterrent features; however, they do not make it impossible to steal. Anti-theft Alarm System Your vehicle has a content theft-deterrent alarm system. The switch used to disable the power assist steps is located on the center console below the climate control system. The power assist steps automatically extend from beneath the vehicle on the side in which the door has been opened. Once the door is closed, the assist steps automatically move back under the vehicle after a brief delay. The vehicle must not be moving for the assist steps to extend or retract. The assist steps cannot be disabled in the extended position. This is the security light.