Technical Service Bulletins (TSBs) for the 2017 Sierra are official communications between GMC & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    ENGINE (PWS)

    • TSB #16-NA-222

      Date Announced:
      JUL 11, 2016
      NHTSA ID:
      #10100822

      THIS INFORMATIONAL BULLETIN PROVIDES THE TECHNICIAN WITH WHAT MAY HAPPEN TO AN ENGINE DUE TO LACK OF MAINTENANCE. Read More »

    LIGHTING (PWS)

    • TSB #15-08-42-001A

      Date Announced:
      MAY 13, 2016
      NHTSA ID:
      #10078824

      THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON EXTERIOR LIGHTING COMPONENTS THAT HAVE BEEN TINTED OR SMOKED BY AN OUTSIDE VENDOR AND GENERAL MOTORS POSITION ON ALTERING THESE COMPONENTS. Read More »