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Fuel systemPart report

2024 GMC Sierra 3500 Fuel system Problems

Complaints
5about this part
Share
10%of 51 total for the year
Median mileage
20,000miles
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 5 complaints about the fuel system of the 2024 GMC Sierra 3500, 10% of the 51 complaints for this model year. Where a mileage was given, the median is 20,000 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.

“Vehicle lost power, seemed to slip while pulling hills, Exhaust brake didn't seem to work. Dealer determined cause by DTC P209. Tested injector circuit, found loose terminal tension at injector number 6 connector. Replaced Cylinder # 6 injector connector. Did have multiple warning lights. Also submitting because Service Bulletin 23-NA+027 covered up to 2023. Believe it's an ongoing issue since vehicle is a 2024.”

NHTSA complaint #11767003, filed 2026-09

“The service department has identified gasoline contamination as the cause of a fuel system failure; however, this diagnosis is directly contradicted by both the shop’s internal test results and independent laboratory analysis.the shop performed an API Gravity test and a Styrofoam cup test.•API Gravity Result (35): According to GM Service Information (GMSi), the standard API range for #2 diesel is 30–39. result of 35 is a textbook pass for clean diesel. …”

NHTSA complaint #11729038, filed 2026-04

“The contact owns a 2024 GMC Sierra 3500HD. The contact stated that while driving at various speeds, there would be a diesel odor coming into the cabin of the vehicle. The failure had become more persistent, causing black smoke to enter the cabin of the vehicle. The failure caused the contact and other vehicle passengers to have headaches, nausea, and dizziness. While driving approximately 65 MPH, the contact began speaking to their daughter, sitting in the front passenger seat, and noticed her not responding. When looking over, the contact noticed her daughter's head was lowered. …”

NHTSA complaint #11722160, filed 2026-03, 20,000 miles

“First incident we were driving on the interstate towing a fifth wheel RV, and several warning lights illuminated before everything just shut down. Manage to get to the side of the road. Vehicle finally restarted and the rest of the trip was uneventful. Second incident, vehicle had not run for two days, got in and while the starter cranks, the engine will not start or run. Engine/Transmission service and fuel system service messages showing on app and on email from OnStar. Vehicle requires towing to dealer.”

NHTSA complaint #11622920, filed 2024-10

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2026120%
2024510%
202327%
202213%
2021210%
2020612%
201918%
201817%
2016316%
201526%
2014229%
2013214%
2012333%
2011210%
2008312%
200514%
2004417%
2003114%
2002630%
2001822%
199915%
1998217%

Other parts of the 2024 GMC Sierra 3500

Electrical system
16 complaints
Transmission and drivetrain
13 complaints
Brakes
11 complaints
Engine
8 complaints
Other or unknown
7 complaints
Steering
5 complaints
Body and structure
4 complaints
Latches, locks and linkages
2 complaints
Vehicle speed control
2 complaints
Wheels
2 complaints
Air bags
1 complaints
Back-over prevention (rear camera)
1 complaints

← All problems reported for the 2024 GMC Sierra 3500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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