How common are electrical system problems in the 2015 Chevrolet Silverado 3500?

NHTSA lists 16 electrical system complaints for the 2015 Silverado 3500, making up 31% of the 52 total complaints filed for that model year.

Is there a recall for the 2015 Silverado 3500 electrical system?

No related recall is listed in NHTSA data for this electrical system issue.

At what mileage do these electrical failures tend to happen?

The median mileage at failure across these complaints is 21,500 miles.

Did the electrical problems cause any crashes or fires?

NHTSA data for this issue lists 1 crash, 1 fire, and 1 injury among the reported complaints.

Is the trailer brake warning a wiring problem or a trailer problem?

Multiple owners report the warning appears even without a trailer attached, and dealers told some owners the issue was with trailer wiring rather than the truck.

2015 Chevrolet Silverado 3500 Electrical System Problems

The 2015 Chevrolet Silverado 3500 has 16 electrical system complaints, 31% of its 52 total complaints for the year — the highest share among all model years listed. Median mileage at failure is 21,500. No related recall is listed for this issue.

Electrical System complaints: 16; 31% of 52
Crashes reported: 1
Fires reported: 1
Injuries reported: 1
Median mileage: 21,500 mi
Related recalls: 0

Typical electrical symptoms owners report

Trailer brake or wiring warning messages appear on the dash, often with the trailer brakes going inoperable even when no trailer is connected.
Owners report white or gray smoke and burning smells coming from under the hood or rear weather stripping, in one case leading to an alternator fire.
Some describe the instrument cluster flashing along with abnormal beeping and vibration while towing at highway speed.
One complaint links a frayed wiring harness near the turbo to a sudden loss of engine power while towing.
Owners say dealers blamed trailer wiring or non-blade connectors rather than the truck's own electrical system.

When 2015 Chevrolet Silverado 3500 electrical complaints were filed

First complaint Aug 10, 2015, latest Mar 7, 2025.

16 complaints filed with NHTSA from Aug 2015 to Mar 2025; peak Aug 2015 (3).

Electrical System recalls for the 2015 Chevrolet Silverado 3500

No safety recalls on record for this model year.

Electrical System complaints by Silverado 3500 model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

20101 (50%)
20112 (7%)
20122 (9%)
20134 (15%)
20141 (10%)
201516 (31%)
20168 (16%)
20172 (15%)
20183 (16%)
20195 (23%)
20205 (12%)
202112 (30%)
20226 (22%)
20231 (7%)
202419 (39%)
20254 (33%)

Frequently asked questions

How common are electrical system problems in the 2015 Chevrolet Silverado 3500?: NHTSA lists 16 electrical system complaints for the 2015 Silverado 3500, making up 31% of the 52 total complaints filed for that model year.
Is there a recall for the 2015 Silverado 3500 electrical system?: No related recall is listed in NHTSA data for this electrical system issue.
At what mileage do these electrical failures tend to happen?: The median mileage at failure across these complaints is 21,500 miles.
Did the electrical problems cause any crashes or fires?: NHTSA data for this issue lists 1 crash, 1 fire, and 1 injury among the reported complaints.
Is the trailer brake warning a wiring problem or a trailer problem?: Multiple owners report the warning appears even without a trailer attached, and dealers told some owners the issue was with trailer wiring rather than the truck.