2013 Buick LaCrosse Owner Manual - Page 41

Keys, Doors, and Windows Press o { to activate the safety locks on the rear doors. The indicator light comes on when activated. The rear door power windows are also disabled. Press o { again to deactivate the lockout switch. If a rear door handle is pulled when the safety lock is deactivated, that door will remain locked and the indicator light may flash. Release the handle, then press the safety lock twice to deactivate the safety locks. 2-11 Doors Trunk . WARNING (Continued) Adjust the climate control system to a setting that brings in only outside air and set the fan speed to the highest setting. See "Climate Control Systems" in the Index. If the vehicle has a power liftgate, disable the power liftgate function. { WARNING Exhaust gases can enter the vehicle if it is driven with the liftgate, trunk/hatch open, or with any objects that pass through the seal between the body and the trunk/hatch or liftgate. Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. It can cause unconsciousness and even death. If the vehicle must be driven with the liftgate, or trunk/hatch open: ... For more information about carbon monoxide, see Engine Exhaust on page 9‑26. Close all of the windows. Fully open the air outlets on or under the instrument panel. (Continued)