2002 GMC Denali problems & reliability
23 owner complaints filed with NHTSA for the 2002 GMC Denali, alongside 1 safety recall campaign. 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.
2 complaints report injuries (3 injured).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Engine and Engine Cooling | 6 | 26% |
| Power Train | 5 | 22% |
| Service Brakes, Hydraulic | 3 | 13% |
| Air Bags | 2 | 9% |
| Exterior Lighting | 2 | 9% |
| Seat Belts | 2 | 9% |
| Steering | 2 | 9% |
| Suspension | 2 | 9% |
| Latches/locks/linkages | 1 | 4% |
| Service Brakes, Air | 1 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
All 12 reported components →Complaints by incident year
What owners report
“We own a 2002 denali, that we bought used. The transmission went out around nov. 2008 (appr. 120,000 miles) we had the transmission replaced but the transmission went out again shortly thereafter (around 150,000). Through civil litigation, we found out that the transmission had went out previously, at around 70,000…”
Power Train · filed Sep 1, 2009
“Front running light has been replaced twice and is out again. My mechanic stated he has seen several gmc autos with the same problem. Is there a recall or reason? *tr”
Exterior Lighting · filed Apr 6, 2009
“Tl*the contact owns a 2002 gmc denali. The contact stated that the vbraked vibrate when attempting to stop and continued to accelerate forward a few feet. The contact stated that the vehicle had an increased stopping distance at low speeds. The mechanic stated that there was a recall # 05v379000 for the hydraulic…”
Service Brakes, Hydraulic · filed Apr 11, 2007
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- PARKING BRAKE FAILURE
Defect Petition DP05009 · opened Dec 20, 2005 · closed May 31, 2006
Technical service bulletins
95 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2002 GMC Denali. 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
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 provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
10-08-45-001H · Service Bulletin/Repair Instructions · issued Mar 28, 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
This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the…
22-NA-074 · Service Bulletin/Repair Instructions · issued Feb 22, 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 Jan 16, 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 2002 GMC Denali has 1 NHTSA recall campaign — 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 2002 GMC Denali?
- · 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.