2003 GMC Yukon Denali Electrical system Problems
- Complaints
- 25about this part
- Share
- 35%of 72 total for the year
- Median mileage
- 82,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 25 complaints about the electrical system of the 2003 GMC Yukon Denali, 35% of the 72 complaints for this model year. Where a mileage was given, the median is 82,000 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Driving on hwy going aprx 65mph. Vehicle said reduced engine power and started slowing down. I had to pull to side of the road. I managed not to be rear ended. This has happened often. It is a potentially life threatening situation. Gmc know about this problem and how difficult it is to find the proper fix. Someone is going to die due to their lack of action. It's not safe.”
NHTSA complaint #10563226, filed 2014-02, 125,000 miles“I have a 2003 Gmc Yukon Denali, it recently begin a skipping like motion on the speedometer. Then after about a week it started reading off by about 30 MPH now when driving its sits at zero 90 percent of the time, the other 10 percent of the time it stay at 15 MPH no matter how fast or slow I am moving.”
NHTSA complaint #10508304, filed 2013-04, 159,000 miles“Off and on since last year I have had problems with my electrical system. Just out of the blue the check engine light will come on and the reduce engine speed message will show up on the dashboard. And my speed will shut down and the vehicle will only go about 25mph. We had taken it in to a shop and they were unable to find the issue and said it was just a low battery. Well after replacing the battery it continues to do this off and on. Once the car is shut off and restarted it would be fine until the next incident. …”
NHTSA complaint #10455448, filed 2012-04, 98,000 miles“I have had multiple ongoing electrical issues with this vehicle. Starting in 2005, the exterior electronics (I.e. Signal lights, stop lights, head lights, etc) began to malfunction. For example, I would trigger the signal for one direction and all of the signals for all directions would trigger... Even pressing the brakes triggered all of the exterior signals. The dealer had a hard time isolating my problem, but after several visits, the dealer was finally able to diagnose and rectify it... They isolated it to a junction box where all of the electronics terminate. …”
NHTSA complaint #10440123, filed 2011-12, 97,000 miles“I have a 2003 yukon with 70000 miles. My speedometer has become very erratic. At a full stop it reads anywhere from 15 to 70 MPH. When driving it frequently exceeds the 120 MPH maximum limit even though I am traveling with the flow of normal traffic. I have researched the problem and have found that this is a common issue with GM suvs and trucks manufactured in the 2003/2004 time frame. This is an extreme safety issue as not reliably knowing your speed can and will cause traffic accidents. …”
NHTSA complaint #10174483, filed 2006-11, 69,000 milesRelated service bulletins
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- 11006621Aug 26, 2024Vehicle 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…
- 11002312Jun 6, 2024This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 10252735Mar 28, 2024This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
- 10244214Sep 21, 2023This informational bulletin provides information for the IPC odometer programming method quick reference guide.
- 10230605Jan 6, 2023This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
- 10225615Oct 19, 2022This service bulletin provides information on Module Harvesting.
- 10213796May 12, 2022This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the…
- 10198890May 25, 2021This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or…
- 10176649May 20, 2020This informational bulletin provides information for the IPC odometer programming method quick reference guide.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2017 | 1 | 8% |
| 2016 | 3 | 17% |
| 2015 | 11 | 15% |
| 2012 | 2 | 7% |
| 2011 | 2 | 2% |
| 2009 | 3 | 7% |
| 2008 | 7 | 12% |
| 2007 | 16 | 13% |
| 2006 | 1 | 5% |
| 2005 | 19 | 39% |
| 2004 | 57 | 52% |
| 2003 | 25 | 35% |
| 2002 | 3 | 10% |
| 2001 | 2 | 6% |
| 2000 | 3 | 17% |
| 1999 | 3 | 11% |
Other parts of the 2003 GMC Yukon Denali
18 complaintsEngine
8 complaintsElectronic stability control
7 complaintsVehicle speed control
5 complaintsEngine cooling
4 complaintsAir bags
3 complaintsExterior lighting
3 complaintsTransmission and drivetrain
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsOther or unknown
2 complaintsSeat belts
2 complaintsSteering
2 complaints
← All problems reported for the 2003 GMC Yukon Denali
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