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Don't let this happen to you...

GM recently issued a Technical Service Bulletin (TSB) on their wax frames. Their “fix” only applies during the warranty period. If you are past 6 years/100,000 miles, your out of luck and have to pay for the repair yourself. Unfortunately, GM has not issued a bulletin for the GMC trucks impacted by this issue at this time even though they use the exact same process and have the exact same problems.

Coating the wax frame with our products can help this minimize this problem by keeping the existing wax soft and extend the life of your frame.

Note: TSBs are considered “proprietary” information by the manufacturers and the want to perform as little work covered under warranty as possible. Your dealer may very well tell you “they’ve never heard of this issue”. They are not telling you the truth. They may also pull up an older version of the TSB and tell you that you are out of luck.

You can download the most current TSB here or from the National Highway Safety Administration web site here:

https://static.nhtsa.gov/odi/tsbs/2024/MC-10249745-0001.pdf

 

Impacted Models:

Cadillac

  • Escalade 2011-2023

Chevy

  • Avalanche 2011-2015
  • Express 2011-2024
  • Suburban 2011-2024
  • Tahoe 2011-2024
  • Silverado 2011-2018
  • Silverado 1500 (New Model -
    12th VIN Digit = 7) - 4WD 2019-2019
  • Silverado 1500 (New Model) 2019
  • Silverado LD 2019
  • Silverado 2500/3500 2019
  • Silverado 1500 2020-2021
  • Silverado 2500HD/3500HD 2019
  • Silverado 1500 LTD (RPO J21, VIN Digit 5 = W / Y) 2022
  • Silverado 1500 New (RPO J22, VIN Digit 5 = A / D) 2022
  • Silverado 1500 2024

GMC

  • Savana 2011-2024
  • Yukon 2011-2024
  • Sierra 1500 (New Model) 2019
  • Sierra Limited 2019
  • Sierra 2500/3500 2019
  • Sierra 1500 2020-2021
  • Sierra 2500HD/3500HD 2020-2024
  • Sierra 1500 Limited (RPO J21, VIN Digit 5 = 8 / 9 2022
  • Sierra 1500 New (RPO J22, VIN Digit 5 = H / U) 2022
  • Sierra 1500 2024
  • Sierra 2011-2018