Express 2500 V8-5.3L VIN T (2005)
IMPORTANT: After replacing the vehicle communication interface module, you must reconfigure the OnStar(R) system. Failure to reconfigure the
system will result in an additional customer visit for repair. In addition, pressing and holding the white dot button on the keypad will NOT reset this
version of the OnStar(R) system. This action will cause a DTC to set.