Brakes - Service Stability Message/DTC C0550 Stored
Bulletin No.: 04-08-49-006ADate: March 29, 2004
TECHNICAL
Subject:
Service Stability Message Displayed, DTC C0550 Set (Reprogram EBCM)
Models:
2003 Cadillac Escalade, Escalade ESV, Escalade EXT
2003 Chevrolet Avalanche, Suburban, Tahoe
2003 GMC Yukon, Yukon XL
Supercede:
This bulletin is being revised to provide the correction and warranty information, which is now available for Advanced Service Information Bulletin Number 04-08-49-006. Please discard Corporate Bulletin Number 04-08-49-006 (Section 08 - Body and Accessories).
Condition
Some customers may comment that while driving downhill and making a turn, the Service Stability message will display in the Driver Information Center (DIC). This will occur prior to ABS activation and once stopped, the message will go off. Upon investigation, the technician may find DTC C0550 stored in history.
Cause
The cause of this condition may be that the "Long Accel Gain" parameters in the EBCM are sensitive to certain driving conditions.
Correction
Technicians are to reprogram the EBCM with an updated software calibration. The new calibration will be released beginning with TIS satellite data update version 3.0 to be available on March 8, 2004. As always, make sure your TECH 2(R) is updated with the latest software version.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer