Problems owners report
Complaints filed with NHTSA about the 2001 GMC Denali, by the system named in each complaint. One complaint can name several.
- Power train5
- Fuel system, gasoline3
- Service brakes, hydraulic3
- Steering3
- Engine and engine cooling3
- Electrical system2
- Air bags2
- Service brakes2
- Seat belts1
- Suspension1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 1 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Recalls
ON CERTAIN SPORT UTILITY VEHICLES EQUIPPED WITH REARWARD FOLDING HEAD RESTRAINTS ON THE SECOND ROW SEATS, TWO POTENTIAL PINCH POINTS EXIST ON EACH OF THE FOLDING HEAD RESTRAINTS WHEN THE RESTRAINTS ARE FOLDED REARWARD AS THE SEATBACK IS FOLDED DOWN.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What GMC told its dealers about the 2001 GMC Denali: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 634821 | SOME CUSTOMERS MAY COMMENT THAT THE MANUAL LOCK LEVER COMES LOOSE FROM THE DOOR TRIM PANEL. *TT |
| 634805 | SOME CUSTOMERS MAY COMMENT ON HIGHER THAN EXPECTED ENGINE OIL CONSUMPTION. *TT |
| 628858 | SUBJECT REGARDING LOSS OF HVAC SYSTEM MODE AND/OR TEMPERATURE CONTROL. *TT |
| 628508 | SUBJECT REGARDING DOOR MANUAL LOCK LEVER DISENGAGES FROM DOOR TRIM PANEL (REPAIR LOCK LEVER) *JG |
| 628505 | SUBJECT REGARDING FRONT AND REAR SIDE DOOR ACCESS DOOR NOISE (REPLACE DOOR CHECK LINK). *JG |
| 628079 | ON SOME VEHICLES AS WELL AS CREW CAB PICK-UPS, CUSTOMERS USING A CHILD RESTRAINT ON THE SECOND ROW BENCH SEAT MAY COMMENT THAT EITHER OUTBOARD SEATBELT RETRACTOR, UPON RETRACTION, MAY APPEAR THAT THE BELT DOES NOT AUTOMATICALLY LOCK. *TT |
| 627471 | INFORMATION REGARDING FRONT AND REAR SIDE ACCESS DOOR NOISE. *YH |
| 627425 | SUBJECT ON DOOR MANUAL LOCK LEVER DISENGAGES FROM DOOR TRIM PANEL. *YH |
| 625338 | CUSTOMERS MAY COMPLAIN OF A RATTLE NOISE COMING FROM THE SECOND ROW SEATBELT. *SLC |
| 625211 | SUBJECT REGARDING DRIVE BELT NOISE. *YH |
| 624705 | SUBJECT PERTAINING TO CENTER CONSOLE POWER DOOR REPLACEMENT PART NUMBERS *JG |
| 623883 | SOME CUSTOMER MAY COMMENT ON A WHINING-TYPE NOISE THAT IS AUDIBLE INTHE VEHICLE'S PASSENGER COMPARTMENT. *TT |
| 623415 | INFORMATION CONTAINING REVISED ASSIST STEP (RUNNING BOARD) INSTALLATION PROCEDURES. *TT |
| 623024 | INFORMATION REGARDING REPLACEMENT OF THE FRONT SEAT BELT RETRACTOR AND BUCKLE USAGE. *TT |
| 622965 | INFORMATION PROVIDING REVISED ASSIST STEP (RUNNING BOARD) INSTALLATION PROCEDURE. *TT |
| 620816 | THIS BULLETIN IS BEING ISSUED TO INFORM DEALERS THAT EFFECTIVE WITH VEHICLE PRODUCTION IN MAY 1, 2001, CERTAIN VEHICLES ARE BEING SHIPPED WITH A NEW FLUORESCENT ORANGE PLASTIC ANTENNA WRENCH AS PART OF THE ANTENNA. *TT |
| 619387 | INFORMATION ON EXCEEDED TIRE INFLATION PRESSURE (HARSH RIDE FACTOR). *TT |
| 619366 | THE DELETION OF THE STEERING COLUMN / WHEEL LOCKING FEATURE ON VEHICLES WITH AUTOMATIC TRANSMISSIONS. *TT |
| 11006621 | 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 updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers. |
| 11006421 | 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 bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return. |
| 11004761 | 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 Top Tier fuels should be used to reduce carbon build-up. |
| 11004557 | This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
| 11002312 | 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 resolution information. |
| 10251890 | 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 how Top Tier fuels should be used to reduce carbon build-up. |
| 10250775 | 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 oiling system. |
NHTSA manufacturer communications (public domain)
NHTSA investigations
PARKING BRAKE FAILURE
NHTSA Office of Defects Investigation