Grand Prix V6-3.8L VIN 2 (2004)
Power Mirror Motor: Technical Service Bulletins
Power Locks - Cycle Unexpectedly
Bulletin No.: 04-08-64-010
Date: May 26, 2004
INFORMATION
Subject:
Automatic Door Lock Cycle (Locks Cycle Unexpectedly) - Normal Operating Feature
Models:
2004 Pontiac Grand Prix
If a customer a comments that the door locks cycle unexpectedly, please explain the operating characteristics below. As part of the Grand Prix automatic
door lock feature, the doors will relock under certain conditions at 25 MPH (40 km/h). The following operation is normal:
Door Lock Operating Characteristics:
Important:
Verify that the auto door lock feature is turned "ON" through the DIC personalization menu.
^
The doors will automatically lock as you put the car into Drive.
^
If you press a door unlock switch anytime after the doors are automatically locked, the BCM detects the doors are unlocked and will relock the
doors as the vehicle accelerates past 25 MPH (40 km/h).
^
If a door is manually unlocked and opened while the vehicle remains in Drive, the BCM will again assume that there is at least one door that is
unlocked and will relock the vehicle as it accelerates past 25 MPH (40 km/h).
^
Once this has occurred, the doors will not relock again unless the BCM detects that the doors are unlocked again.
^
Many other vehicles have this feature at lower speeds 5-10 MPH (8-16km/h).
DO NOT REPLACE THE BCM.
If the customers concern is reproduced according to any of the items in the system operation description above, no repairs are necessary.
If the doors relock every time the vehicle passes through 25 MPH (40 km/h), follow the published diagnostics according to SI.
Disclaimer
