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Re: TrailBlazer transfer case code C0550
Posted to Technical Discussion Forum on 4/21/2008 24 Replies

Turn ON the ignition, with the engine OFF. Press and hold the radio preset buttons 2 and 3 for approximately 8 seconds until the first 3 digits of the backup code are displayed on the radio. Record the displayed code. Press and hold the AM/FM push button until... Login to read more.

24 Replies Received (View Replies)