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GMC TSB #PI-1370

2010 GMC Sierra 2500

Summary: CHEVROLET/GMC: WITH TRAILER LOAD AND CERTAIN KIND OF ROAD CONDITIONS, BRAKING CONDITIONS HAVE BEEN REDUCED AND A MISMATCH OF INFORMATION OF THE TRAILER BRAKE CONTROL SYSTEM DETERMINES AMOUNT OF REQUIRED BRAKING. MODEL 2010 SILVERADO HD 2500/3500, SIERRA HD 2500/3500. *PE

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