2025 Chevrolet Silverado 2500HD: Electrical System complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 8 owner complaints for the 2025 Chevrolet Silverado 2500HD that list the electrical system component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11766852 (filed 09/25/2026): “- multiple system failure. truck presented with oil or atf leaking from the transmission bell housing and transmission inspection port cover. first detected by me at 30k mile oil change. prior to this, my wife and i both complained that the truck was very slow to get into gear from a stop, especiall…”
- NHTSA complaint ODI #11754770 (filed 08/04/2026): “Intermittent no audio…”
- NHTSA complaint ODI #11752218 (filed 07/22/2026): “Radio does not emit sound also canceling all warning noises for fuel level, turn signals, seat belts, open door in motion. this problem is not only a saftey hazard for drivers its a major annoyance. honestly find it quite distracting. have reached out to gm multiple times and the issue hasn't been c…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Moderate
Finding and splicing chewed wiring is doable with a multimeter and patience but can be time-consuming; harness replacement is pro work. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
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