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GMC TSB #SB-09271C
2010 GMC Terrain
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# SB-09271C.
Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
- Summary
- PONTIAC/SATURN/BUICK/GMC/CHEVROLET: TRANSMISSION CALIBRATION UPDATE. A SERVICE PROCEDURE TO REPROGRAM THE ECM AND TCM ON CERTAIN MODEL VEHICLES. THIS NEW CALIBRATION WILL IMPROVE TRANSMISSION SHIFT CHARACTERISTICS FOR DOWNSHIFT HESITATION, DELAYED SHIFTING, AND SHIFTING AT THE WRONG TIME. *PE
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