2003 Chevrolet Venture Owner's Manual - Page 127

If your vehicle has the power sliding door(s), you can override the security lock by pressing either power door lock switch when the power sliding door override switch(es) is turned off. When the power sliding door override switch(es) is turned on, the power sliding door(s) cannot be opened from the inside when the sliding door security lock is in use. If you want to open the sliding door when the security lock is on, unlock and open the door from the outside. You should let adults and older children know how the security lock works, and how to cancel the lock. If you don't, adults or older children who ride in the rear won't be able to open the sliding door from the inside when the security lock feature is in use. Canceling the Sliding Door Security Lock 1. Unlock the sliding door and open the door from the outside. 2. Push the security lock lever all the way down. 3. Close the door. 4. Repeat Steps 1 through 3 for the other door. The sliding door lock will now work normally. 2-16