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EnginePart report

2023 GMC Sierra 2500 Engine Problems

Complaints
3about this part
Share
9%of 33 total for the year
Median mileage
—not reported
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 3 complaints about the engine of the 2023 GMC Sierra 2500, 9% of the 33 complaints for this model year.

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.

“I was driving on the interstate and had just exited to refuel. As I was re-entering traffic, I accelerated to merge, and suddenly, as I was about to pull in, I felt and heard a massive metallic crash, like the entire transmission had dropped. The engine sounded abnormal, and immediately, the dashboard flashed a warning: 'Engine Power is Reduced.' The check engine light came on, and I got messages saying the transmission needed service and to schedule an appointment. I called my dealership and took it in as soon as possible. …”

NHTSA complaint #11625329, filed 2024-11

Related service bulletins

Engine: other model years

YearComplaintsShare of year
202618%
2025414%
20241211%
202339%
202249%
2021815%
20201013%
2019619%
2018823%
2017616%
2016915%
201578%
2014310%
201312%
2012310%
201158%
2010110%
200926%
200846%
200711%
200554%
200496%
200364%
200221%
200186%

Other parts of the 2023 GMC Sierra 2500

Transmission and drivetrain
20 complaints
Electrical system
6 complaints
Brakes
3 complaints
Tires
3 complaints
Other or unknown
2 complaints
Back-over prevention (rear camera)
1 complaints
Body and structure
1 complaints
Vehicle speed control
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints
Wheels
1 complaints

← All problems reported for the 2023 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