Table 1 shows one common electrical system related problems of the 2025 GMC Sierra 2500.
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems |
My 2025 GMC Sierra 2500 experienced repeated electrical failures that caused complete battery drainage and multiple overnight no?start conditions within the first year of ownership. These failures occurred in extreme desert heat, where temperatures in [xxx] reach 120°f. A vehicle that repeatedly fails to start in these conditions creates a serious safety hazard, including risk of heat?related medical emergencies if stranded. The defect persisted despite multiple repair attempts and two battery replacements. The dealership ultimately told me I would “need to replace batteries as needed,” instead of diagnosing the underlying electrical issue. Detailed description of the problem multiple overnight no?start incidents several jump?start events required xxx – 15,265 miles: battery replaced due to electrical drainage xxx: battery replaced again for the same defect electrical system continued to fail after repairs dealer advised ongoing battery replacement rather than addressing root cause the truck was unreliable and unsafe in extreme heat. A no?start condition in 120°f temperatures can leave occupants stranded without air conditioning, posing a life?threatening risk. Frequency of the problem the electrical failure occurred multiple times over several months, including late 2025, early 2026, and again in mid?2026. The defect was consistent and repeatable. Consequences risk of being stranded in extreme heat loss of air conditioning during no?start events potential for heat exhaustion or heat stroke vehicle unreliable for daily use safety hazard for driver and passengers information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).