Skip to content
Electrical systemPart report

2019 GMC Sierra 3500 Electrical system Problems

Complaints
3about this part
Share
23%of 13 total for the year
Median mileage
31,237miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the electrical system of the 2019 GMC Sierra 3500, 23% of the 13 complaints for this model year. Where a mileage was given, the median is 31,237 miles. 1 recall campaign on record is filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Driving to work. Power steering went out and braking system seem to be ineffective. Instrument panel service light came on with the battery indicator displaying battery charging system fault.”

NHTSA complaint #11390458, filed 2021-01, 9,470 miles

“I purchased my vehicle in 2019. Since then, I have had several issues. I've had to replace the coolant reservoir, DEF heater/pump and twice changed the number 8 injector plug. The warning light came on just after the warranty went out. The code reader read the ambient sensor and no sensor.”

NHTSA complaint #11661793, filed 2025-05

“The contact owns a 2019 GMC Sierra 3500. The contact stated that while attempting to switch lanes, the side-view cameras failed to operate as needed. The vehicle was taken to a dealer where it was diagnosed with a disconnected wire from the side-view cameras. The wire had poor connection, which caused the cameras to fail due to low voltage. The vehicle was not repaired. The manufacturer was notified of the failure and stated that the part to repair the vehicle was no longer manufactured. The failure mileage was 53,004. The VIN was unavailable.”

NHTSA complaint #11753630, filed 2026-07, 53,004 miles

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2026120%
2025318%
20241631%
2023414%
2022722%
2021420%
2020918%
2019323%
2018214%
2017323%
2016211%
2015619%
2014114%
201317%
2012222%
2011210%
2009120%
200814%
2007213%
2005313%
2004521%
2003114%
200113%
200014%
199915%
199818%

Other parts of the 2019 GMC Sierra 3500

Brakes
4 complaints
Engine
2 complaints
Equipment
2 complaints
Other or unknown
2 complaints
Air bags
1 complaints
Engine cooling
1 complaints
Exterior lighting
1 complaints
Fuel system
1 complaints
Steering
1 complaints
Transmission and drivetrain
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2019 GMC Sierra 3500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology