GMC TSB #3204B
2004 GMC Envoy
Affected Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
- TSB Document
-  - Sorry, the NHTSA has not posted this TSB document yet.
 You can still get the detailed info from GMC for this TSB. Call your local GMC dealer's service department & ask for a copy of TSB# 3204B. 
- Summary
- INSTALLATION OF AN AFTERMARKET TRAILER BRAKE MODULE. *TT
