2001 GMC Sierra 2500 problems & reliability
134 owner complaints filed with NHTSA for the 2001 GMC Sierra 2500, alongside 2 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
6 complaints report injuries (9 injured).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Service Brakes, Hydraulic | 44 | 33% |
| Engine and Engine Cooling | 21 | 16% |
| Service Brakes | 13 | 10% |
| Tires | 12 | 9% |
| Steering | 11 | 8% |
| Engine | 8 | 6% |
| Structure | 7 | 5% |
| Fuel System, Gasoline | 6 | 4% |
| Power Train | 6 | 4% |
| Unknown OR Other | 5 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 66,500 miles (middle 50% between 46,500 and 120,000 miles), based on 108 complaints that included mileage.
Complaints by incident year
What owners report
“Fuel is dumping into injectors. 2001 gmc sierra 2500 diesel. Only has 135,000 miles!! Engine boggs down when climbing hill, bridge, or towing.”
Unknown OR Other · filed Jan 25, 2021
“I have a 2001 gmc truck that the rear frame horn on the passenger side were the frame is welded about 6 inches from that point it has a crack all the way to the top of the frame right were the bump stop is on the frame with only about 1 inch holding the frame together as of right now the rest of the frame looked ok…”
Unknown OR Other · filed Mar 31, 2018
“Tl* the contact owns a 2001 gmc sierra 2500. While driving various speeds, the engine suddenly lost compression and the vehicle failed to accelerate properly. The vehicle was taken to courtesy cadillac (1345 evangeline thruway, broussard, la) where it was diagnosed that one or more fuel injectors were faulty and…”
Engine · filed Mar 23, 2018
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- CRANK POSITION SENSOR FAILURE - STALL
Engineering Analysis EA06016 · opened Sep 14, 2006 · closed Nov 9, 2007 · led to recall 07V521000
- HYDRAULIC PUMP SHAFT FAILURES
Preliminary Evaluation PE04004 · opened Jan 8, 2004 · closed Apr 30, 2004
Technical service bulletins
140 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2001 GMC Sierra 2500. The 10 most recent:
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
PIP5601C · Service Bulletin/Repair Instructions · issued Jul 18, 2025
This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
03-06-01-023I · Service Bulletin/Repair Instructions · issued Dec 18, 2024
This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
03-06-01-023H · Service Bulletin/Repair Instructions · issued Oct 7, 2024
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to…
General Communication · Service Campaign · issued Aug 26, 2024
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This…
24-NA-141 · Service Bulletin/Repair Instructions · issued Jul 24, 2024
This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how…
16-NA-383 · Service Bulletin/Repair Instructions · issued Jun 28, 2024
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
18-NA-099 · Service Bulletin/Repair Instructions · issued Jun 17, 2024
This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and…
24-NA-098 · Service Bulletin/Repair Instructions · issued Jun 6, 2024
This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
06-06-01-019C · Service Bulletin/Repair Instructions · issued Mar 14, 2024
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains…
16-NA-383 · Service Bulletin/Repair Instructions · issued Mar 13, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2001 GMC Sierra 2500 has 2 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2001 GMC Sierra 2500?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 66,500 miles — budget accordingly if the car is approaching that mileage.