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Engine coolingPart report

2019 GMC Sierra 2500 Engine cooling Problems

Complaints
2about this part
Share
6%of 32 total for the year
Median mileage
87,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the engine cooling of the 2019 GMC Sierra 2500, 6% of the 32 complaints for this model year. Where a mileage was given, the median is 87,000 miles.

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.

“The contact owns a 2019 GMC Sierra 2500. The contact stated while driving at various speeds, the vehicle lost motive power. The coolant fan seized and failed to operate as needed. There were no warning lights illuminated. The vehicle was towed to the local dealer to be diagnosed. The contact was informed that the check engine warning light was illuminated, and the knock sensor, coolant fan clutch, injector #6, and unstated wiring harness needed to be replaced. The dealer informed the contact that the parts to repair the vehicle were on back order. The vehicle was not repaired. …”

NHTSA complaint #11617810, filed 2024-10, 87,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202212%
202023%
201926%
201413%
201312%
201112%
200913%
200812%
200722%
200658%
20051311%
200496%
200353%
2002118%
20012116%
200048%
199817%

Other parts of the 2019 GMC Sierra 2500

Electrical system
9 complaints
Engine
6 complaints
Fuel system
6 complaints
Brakes
4 complaints
Equipment
2 complaints
Exterior lighting
2 complaints
Other or unknown
2 complaints
Tires
2 complaints
Transmission and drivetrain
2 complaints
Electronic stability control
1 complaints
Seat belts
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2019 GMC Sierra 2500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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