Electrical systemPart report
2012 GMC Denali Electrical system Problems
- Complaints
- 1about this part
- Share
- 17%of 6 total for the year
- Median mileage
- 100,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the electrical system of the 2012 GMC Denali, 17% of the 6 complaints for this model year. Where a mileage was given, the median is 100,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Related service bulletins
- 10239102Jun 29, 2023The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 10235398Apr 4, 2023This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- 10234144Mar 20, 2023This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 10225615Oct 19, 2022This service bulletin provides information on Module Harvesting.
- 10222841Sep 27, 2022This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or…
- 10222776Sep 16, 2022The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 10190320Oct 1, 2017IPC Odometer Programming Method Quick Reference Guide
Electrical system: other model years
Other parts of the 2012 GMC Denali
Other or unknown
3 complaintsAir bags
2 complaintsBody and structure
2 complaintsEngine
1 complaintsFuel system
1 complaints
3 complaintsAir bags
2 complaintsBody and structure
2 complaintsEngine
1 complaintsFuel system
1 complaints
← All problems reported for the 2012 GMC Denali
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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