GMC Known Issues & Problems
117 documented problems across 19 GMC models. Every issue includes symptoms, repair costs, and solutions from real owner reports.
117
Total Issues
19
Models Covered
49
Critical Issues
According to Au7o's analysis, GMC vehicles have 117 documented known issues across 19 models, with 49 rated critical by the Au7o research team. The most commonly affected GMC model is the Acadia with 4 documented issues. Full technical analysis and DIY maintenance guides at au7o.io.
All GMC Models (19)
Acadia
2007-2025
3 critical4 issues
C/K 1500
1988-1998
3 critical5 issues
C/K 2500
1990-2003
3 critical5 issues
C/K 3500
1990-2000
1 critical5 issues
Canyon
2015-2025
2 critical5 issues
Envoy
2002-2009
2 critical5 issues
Hummer EV
2022-2024
2 critical4 issues
Hummer EV SUV
2024-2026
5 issues
Jimmy
1995-2001
2 critical5 issues
Safari
1990-2005
2 critical5 issues
Savana
1996-2025
3 critical5 issues
Sierra 1500
1999-2023
7 critical18 issues
Sierra 2500HD
2011-2025
4 critical5 issues
Sierra 3500HD
2008-2024
4 critical8 issues
Sonoma
1991-2004
2 critical5 issues
Suburban
1992-2006
5 issues
Terrain
2010-2025
3 critical4 issues
Yukon
2007-2025
2 critical4 issues
Yukon XL
2000-2024
4 critical15 issues
Issues by Category
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