GM Service Manual Online
For 1990-2009 cars only

Adm Msg - Service Stability Message and DTC C0550 Set

Subject:Service Stability Message and DTC C0550 Set

Models:2003 Cadillac Escalade, Escalade ESV, Escalade EXT
2003 Chevrolet Avalanche, Suburban, Tahoe
2003 GMC Yukon, Yukon XL



Customers may comment that while driving downhill and making a turn, the Service Stability message will illuminate in the DIC. This will happen prior to ABS activation and once stopped, the message will go off. The technician will receive a DTC C0550. The "Long Accel Gain" parameters in the EBTCM are sensitive to certain driving conditions. A new calibration is available to all dealers. This calibration is available in TIS version 2.5 or higher. For stand alone TIS users, these calibrations are available in CD #3.