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

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Transmitter Battery Replacement

REMOVAL PROCEDURE
1. Insert a screwdriver or dime into the slot on the battery access cover on the back of the transmitter.
2. Turn counterclockwise to remove the transmitter rear cover.
3. Remove the battery.

INSTALLATION PROCEDURE

IMPORTANT: Ensure to use the proper battery size or damage to the transmitter may result.

1. Install a GM P/N 90541381 battery type or equivalent.
2. Install the transmitter rear cover.
3. Inspect the transmitter operation.