1. Rear Door Child Safety Locks (Manual):
* Locate the switch: These are usually small switches or levers located on the *inside edge* of the rear doors, near the door handle or latch mechanism. They are often small and easy to miss. You may need to look closely and possibly use a flashlight.
* Engage/Disengage: The switch will typically have a small indicator (like a picture of a child or a lock symbol) to show the status. To disengage the locks, you'll need to slide or push the switch to the unlocked position. The precise operation will depend on your specific Silverado's door configuration.
2. Power Door Locks (Preventing accidental unlocking):
The 1997 Silverado doesn't have a dedicated "child lock" feature integrated into the power door lock system like some newer vehicles. If your concern is preventing children from accidentally unlocking the doors from the inside, you can't directly disable this. Instead, the only way to mitigate this is to ensure that the power door locks are always locked.
To Summarize: Focus your search on small switches or levers on the *inside* of the rear doors. There's no central control for "child locks" in this vehicle model.