2016 GMC Sierra Denali Electrical system Problems
- Complaints
- 2about this part
- Share
- 7%of 30 total for the year
- Median mileage
- 47,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the electrical system of the 2016 GMC Sierra Denali, 7% of the 30 complaints for this model year. Where a mileage was given, the median is 47,500 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I have diesel 3500 1fuel tank the fuel gauge doesn't always come on and if does it may take several miles before it begins to work. Or sometimes it may just quit. Then other time it may work just fine. There seems to be a problem. The problem did not start till I turned about 40,000 I have about 42,000 now. If it works today then if it set for an few day it may not when it start till you drive several miles. Then it may work for several day then it may stop you never know when it going to stop. Do you have a answer for this problem. I know there a problem with dual tanks but have single tank.”
NHTSA complaint #11321745, filed 2020-04, 40,000 miles“A few minutes after starting truck with remote starter (defroster on), a portion of the rear window shattered. Seems like several people had the same problem, apparently caused by the defroster overheating the glass.”
NHTSA complaint #11193133, filed 2019-04, 55,000 milesRelated service bulletins
- 11017595Apr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- 11017244Mar 31, 2025The 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…
- 11017207Mar 21, 2025This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 11017031Mar 12, 2025This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- 11014230Jan 31, 2025This 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.
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11012929Jan 7, 2025This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- 11011805Dec 6, 2024This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
- 11010421Oct 3, 2024This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- 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…
Electrical system: other model years
Other parts of the 2016 GMC Sierra Denali
9 complaintsBrakes
8 complaintsSteering
6 complaintsEngine
3 complaintsExterior lighting
2 complaintsOther or unknown
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsWheels
2 complaintsElectronic stability control
1 complaintsSeat belts
1 complaintsSeats
1 complaintsBody and structure
1 complaints
← All problems reported for the 2016 GMC Sierra 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