2019 GMC Sierra Denali Other or unknown Problems
- Complaints
- 5about this part
- Share
- 19%of 26 total for the year
- Median mileage
- 10,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the other or unknown of the 2019 GMC Sierra Denali, 19% of the 26 complaints for this model year. Where a mileage was given, the median is 10,000 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.
“The first issue is a bluetooth issue. The phone volume goes silent when I get in my vehicle. If I connect to car play, it works. I have missed important calls due to this issue. This started in july of 2019 and its not fixed yet. Gm says it apple. Apple says its GM I do not care just fix it. Second see below images. You know the issue. This happened to me 3 times. It started 12-05-2019. Then again 12-26-19 . Serviced . 1-4-2020 again. 1-18 20 again and to shop until 1-23-2020. This took a lot of my time talking with my dealer. …”
NHTSA complaint #11310027, filed 2020-02, 10,366 miles“While truck was parked (engine was not running at all), I used the key fab remote to unlock the truck and then open the tailgate. At this time, the tailgate slammed open (very forcefully and quickly) and hit my son in the chest. This has also happened while the truck was running and in park. At that time, I (the driver) pushed the button on the center dash to open the tailgate so that my young son could put his baseball gear in the bed of the truck. Again, the tailgate opened very quickly and abruptly, slammed open, and the heavy tailgate hit him in his body. …”
NHTSA complaint #11321767, filed 2020-04, 9,500 miles“Engine light keeps coming on take it to the dealer I guess they reset it and now this is the 3rd time it's now back on, back up camera goes out from time to time,”
NHTSA complaint #11309140, filed 2020-02, 26,000 miles“Electric/electronic/computer issues. Most issues are intermittent, some happen all the time. The intermittent ones sometime happen in clusters (multiple times a day then not for days, weeks, months) a few have only happened once so far. The following issues happen all the time. Does not come out of cruise control automatically during collision alert. Does not automatically brake during imminent collision with auto brake feature turned on. Secondary bluetooth phone does outgoing calls through trucks info system. Heads-up display gives double turn directions during route guidance nav. …”
NHTSA complaint #11307106, filed 2020-02, 480 miles“The contact owns a 2019 Gmc Sierra Denali. While driving 55 MPH, the tonneau cover detached form the bed of the vehicle. The contact received a recall notice for NHTSA campaign number: 19e031000 (equipment) on may 11, 2019, the same day as the cover detached from the vehicle. The vehicle was not diagnosed or repaired. The dealer and manufacturer were contacted. The failure mileage was also closer to 11,500.”
NHTSA complaint #11221805, filed 2019-06, 10,000 milesRelated service bulletins
- 11037555Sep 26, 2026This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- 11037253Sep 4, 2026This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11035340Jul 21, 2026PI to help diagnose A/C concern
- 11030974Apr 1, 2026This preliminary information communicates information about how to determine if a wheel and tires size change is available.
- 11030092Mar 9, 2026This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
- 11030091Mar 9, 2026This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11029950Mar 2, 2026This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss
- 11027697Jan 16, 2026This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
- 11027601Jan 8, 2026This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- 11025755Nov 20, 2025This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s…
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2019 | 5 | 19% |
| 2018 | 1 | 6% |
| 2017 | 3 | 20% |
| 2016 | 2 | 7% |
| 2015 | 2 | 9% |
| 2014 | 4 | 29% |
| 2013 | 6 | 75% |
| 2012 | 3 | 30% |
| 2011 | 17 | 61% |
| 2010 | 4 | 40% |
| 2009 | 3 | 43% |
| 2008 | 3 | 17% |
Other parts of the 2019 GMC Sierra Denali
8 complaintsSteering
7 complaintsElectrical system
5 complaintsElectronic stability control
5 complaintsEngine
4 complaintsTransmission and drivetrain
4 complaintsExterior lighting
2 complaintsBack-over prevention (rear camera)
1 complaintsEngine cooling
1 complaintsEquipment
1 complaintsBody and structure
1 complaintsTires
1 complaints
← All problems reported for the 2019 GMC Sierra Denali
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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