GMC 1997 Safari Owner's Manual page 86

To use this feature, do the following:
1. Move the lever all the way up.
2. Close the door.
To open the sliding side door while the child security
lock is engaged, unlock the door and open it from
the outside.
If you don't cancel the security lock feature, adults or
older children who ride in the rear won't be able to open
the sliding door from the inside. You should let adults
and older children know how the security door lock
works, and how to cancel the lock.
Canceling the Sliding Door Child
Security Lock
To cancel the child security lock:
1. Unlock the door and open it from the outside.
2. Move the lever all the way down.
Hatch
I
It can be dangerous to drive with the rear
swing-out windows, rear hatch or rear doors
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 swing-out
windows, rear hatch or rear doors open or if
electrical wiring or other cable connections must
pass through the seal between the body and the
rear swing-out windows, rear hatch or rear doors:
Make sure all windows are shut.
0
Turn the fan on your heating or cooling
system to its highest speed with the setting
on anything but MAX A/C. That will force
outside air into your vehicle. See "Comfort
Controls" in the Index.
instrument panel, open them all the way.
0
If you have air outlets on or under the
See "Engine Exhaust" in the Index.