Lucerne V8-4.6L (2008)
Blind Spot Module: Customer Interest
Collision Avoidance - False Side Blind Zone System Mssg
TECHNICAL
Bulletin No.: 09-08-55-001A
Date: May 24, 2010
Subject: False Side Blind Zone System Unavailable Message (Reprogram Side Blind Zone Module)
Models:
2008-2009 Buick Lucerne
2010 Buick Lucerne
Built Prior to November 1, 2009
2008-2009 Cadillac DTS
2010 Cadillac DTS
Built Prior to November 1, 2009
2009 Cadillac Escalade, Escalade ESV
2009 Chevrolet Suburban, Tahoe
2009 GMC Yukon, Yukon XL, Yukon Denali, Yukon Denali XL
All Equipped with Side Obstacle Detection RPO UFT
Supercede:
This bulletin is being revised to add the 2010 model year Buick Lucerne and Cadillac DTS. Please discard Corporate Bulletin Number 09-08-55-001
(Section 08 - Body and Accessories).
Condition
Some customers may comment that the "Side Blind Zone System Unavailable" message displays on the DIC. They may also state that this message will
be displayed when no obvious blockage is on the rear outside fascia.
Cause
This condition may be caused by the side blind zone alert module falsely detecting an object present. This is being caused by the module software
detecting that there is an object in its field of view when there is nothing present.
Correction
Verify none of the following concerns were present when the message was displayed:
-
Rainfall
-
Mud/dirt/snow/ice/slush built up on the outside of the rear fascia
If none of the above concerns were present, then reprogram the side blind zone alert module with the latest software calibration.
Important
Select the correct calibration files for the appropriate vehicle configuration (body style) and RPO codes. Follow the on-screen instructions
carefully. Prior to reprogramming, turn the ignition OFF and open and close the driver's door.
A revised calibration has been developed to address this condition. Technicians are to reprogram the side blind zone alert module using the Service
Programming System (SPS) with the latest software available on TIS2WEB. Refer to the SPS procedures in SI.
Important
At the SPS programming, select "Programming Process" and then select "Replace and Program ECU".
When using a Tech 2(R) or a multiple diagnostic interface (MDI) for reprogramming, ensure that it is updated with the latest software version.
During programming, the battery voltage must be maintained within the proper range of 12-15 volts. Only use the approved Midtronics(R) PSC 550
Battery Maintainer (SPS Programming Support Tool EL-49642) or equivalent during programming.
Warranty Information
