Service VME - Unable to Move Gear Shifter Out of Park - keywords accessory ACC brake BCM BTSI communication lever lock module

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI.

Some owners and dealers have reported that 2003 and 2004 model Pontiac Aztek models will randomly fail to release the transmission shift handle and the ignition key must be cycled before the shift handle is enabled. This condition has been identified as a communications issue with the circuits passing through the BCM. At times, the appropriate signal is not understood and the interlock signal is not being sent. This condition is rarely repeated for several key cycles and depends on how many other devices are attempting communications at the same time.

A new Body Control Module (BCM) went into production March 15, 2004 to address this concern. The new part number is 15235418 and replaces 10334030 and 15143352. Only the new part number should be used if the owner is reporting this condition. Service stock for the 10334030 is nearly exhausted and Aztek models for model years 2001-2004 will all be serviced using the new part.

Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.