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GMC transmission problems

Owners have filed 5,986 complaints with NHTSA about the transmission on GMC vehicles — 100% of everything reported about the brand, across 89 models. The model that accounts for most of them is the GMC Acadia, worst in 2008.

These are raw counts. A model that sold in millions appears near the top for that reason alone — the grade never compares one model with another.

5,986

Complaints

100%

Share of all GMC complaints

152

Crashes

73

Fires

Which GMC models have the most transmission problems

Acadia 1,376 23.0%

Worst in 2008

Sierra 1500 1,314 22.0%

Worst in 2019

Yukon 488 8.2%

Worst in 2021

Terrain 467 7.8%

Worst in 2011

Sierra 345 5.8%

Worst in 1999

Yukon XL 304 5.1%

Worst in 2021

Jimmy 231 3.9%

Worst in 1997

Sierra 2500 203 3.4%

Worst in 2024

Envoy 192 3.2%

Worst in 2002

Canyon 180 3.0%

Worst in 2016

Suburban 129 2.2%

Worst in 1997

Sonoma 109 1.8%

Worst in 1996

Sierra 3500 95 1.6%

Worst in 2020

Safari 91 1.5%

Worst in 1997

Envoy XL 56 0.9%

Worst in 2004

Yukon Denali 47 0.8%

Worst in 2015

Savana 30 0.5%

Worst in 1997

Sierra Denali 28 0.5%

Worst in 2016

Yukon Denali XL 27 0.5%

Worst in 2015

Yukon XL 1500 25 0.4%

Worst in 2003

Worst GMC model years for transmission problems

Vehicle Complaints Share of that year Median miles Grade
2008 GMC Acadia 280 22% 77,309 C
2017 GMC Acadia 236 25% 36,000 C
2007 GMC Acadia 185 29% 79,500 D
2018 GMC Acadia 163 31% 37,000 D
2019 GMC Acadia 153 28% 49,800 C
2019 GMC Sierra 1500 136 15% 30,000 B
2021 GMC Sierra 1500 135 17% 66,780 B
2018 GMC Sierra 1500 129 30% 29,562 D
2017 GMC Sierra 1500 118 25% 29,500 D
2022 GMC Sierra 1500 107 14% 36,000 B
2015 GMC Sierra 1500 97 10% 33,000 A
2020 GMC Sierra 1500 95 14% 72,600 B
2023 GMC Sierra 1500 91 14% 44,115 B
2002 GMC Envoy 87 14% 60,100 C
2016 GMC Sierra 1500 83 19% 45,117 B
2011 GMC Terrain 76 14% 74,500 B
2009 GMC Acadia 72 15% 81,453 B
2014 GMC Sierra 1500 69 7% 70,000 B
2024 GMC Sierra 1500 69 14% 16,500 B
2010 GMC Terrain 51 12% 70,059 B

Other GMC problems

Transmission problems on other brands