2025 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated August 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2025 GMC Sierra 3500HD has 1 documented issue, with 1 rated critical. The most serious is Dual-Tank Fuel-Transfer Software Recall. DIY maintenance guides at au7o.io.
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2025 GMC Sierra 3500HD has 1 documented issue. The documented issue is: Dual-Tank Fuel-Transfer Software Recall. Of these, 1 is rated critical and should be addressed promptly.
The 2025 GMC Sierra 3500HD has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Dual-Tank Fuel-Transfer Software Recall. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
NHTSA campaign 26V129 covers certain 2025-2026 gasoline GMC Sierra 3500HD trucks with dual fuel tanks. The rear pump may not transfer enough fuel to the front tank, causing an engine stall. Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
