Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Locking Functions

The Body Control Module (BCM) has the following Locking functions:
1. All Door Unlock - All doors are unlocked when the driver presses "UNLOCK" on either Door Lock Switch.
2. All Door Lock - All doors are locked when the driver presses "LOCK" on either Door Lock Switch.
3. Key Cylinder Lock Switch (Unlock) (UA6 only) - All doors can be unlocked from either Key Cylinder Lock Switch if rotated and held in the "UNLOCK" position for greater than 1 second.
4. Last Door Closed Locking - A convenience feature intended to allow easy locking of the doors on exit by allowing door locking to occur after all doors have been closed for a period of time.
5. Lockout Prevention - Power Door Locking is prevented while the keys are in the ignition and the driver's door is open.
6. Lockout Prevention Override - Lockout prevention can be overridden by pressing and holding the "LOCK" button down on either Door Lock Switch for greater than 3 seconds.
7. Ignition Off Unlock - All doors are unlocked when the driver turns the ignition "LOCK" only if the vehicle is in the PARK position.
8. Shift into Park Unlock - All doors are unlocked when the driver shifts the transmission into "PARK."
9. Shift out of Park Lock - All doors are locked when the driver shifts the transmission out of "PARK" only if the driver's door is closed.