2020 GMC Sierra 1500 Forward collision avoidance Problems
- Complaints
- 14about this part
- Share
- 3%of 484 total for the year
- Median mileage
- 5,100miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 14 complaints about the forward collision avoidance of the 2020 GMC Sierra 1500, 3% of the 484 complaints for this model year. Where a mileage was given, the median is 5,100 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.
“Within 3 months (<4000 miles) from purchase vehicle began sputtering with hesitation, and ticking noise from engine while in motion followed by multiple alerts posting on driver display. Vehicle displays loss of power, and struggles to keep up with traffic. Check engine light flashing followed by constantly staying on, service ESC system activated, service parking brake, and steering assist reduced drive with caution lights all activated during this episode. Dealer worked on vehicle engine ( and completed on or around 1/08/2021), and replaced lifters, and oil control valve. …”
NHTSA complaint #11388120, filed 2021-01, 3,800 miles“My GMC had a terminal engine failure around 5/3/25. This disengaged the ESC, parking brake, and driver assist abilities as well as making the truck undrivable. GMC service diagnosed the truck needed an entire new engine. The repair took over 2 months to complete and now that I have the truck back, the adaptive cruise control is not working.”
NHTSA complaint #11674781, filed 2025-07“On two separate occasions, while traveling at highway speeds with the adaptive cruise control system on, my truck randomly started braking hard as if it was sensing a vehicle or obstacle in front of me but my lane was completely clear. The most recent time, I was almost rear ended because of this issue.”
NHTSA complaint #11617620, filed 2024-10“I have had no issues with my vehicle since I purchased it in July 2022 and keep up with the routine maintenance on it. About 2.5 weeks ago I was driving to work like I normally do and the truck started making a knocking noise and all these sensors lights came on the dash. The alerts were saying to service the parking brake, service ESC, and that steering assist is reduced and to drive with care. The vehicle also started shaking and would not accelerate properly or shift gears. …”
NHTSA complaint #11640437, filed 2025-02“Lifters Failed in November 2023 and had repaired major engine damage including 4 cylinders, cam shaft, lifters, gaskets etc. After major repair work done. Truck is now doing same exact thing in January 2024. The dealership is stating they will not look at the vehicle unless i buy a new battery. I asked them to try a used battery to see if that makes a difference. And then if it is the battery i will replace. I was hung up on after the technician doug Pedersen stated ill have a supervisor call you back.”
NHTSA complaint #11565626, filed 2024-01Related service bulletins
- 11023051May 8, 2025This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to facilitate the questions needing to be answered by the customer…
Forward collision avoidance: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 6 | 4% |
| 2025 | 11 | 9% |
| 2024 | 14 | 4% |
| 2023 | 14 | 3% |
| 2022 | 24 | 4% |
| 2021 | 6 | 1% |
| 2020 | 14 | 3% |
| 2019 | 8 | 1% |
| 2018 | 6 | 2% |
| 2017 | 6 | 2% |
| 2015 | 3 | 0% |
| 2014 | 3 | 0% |
| 2013 | 2 | 2% |
| 2012 | 1 | 1% |
| 2011 | 2 | 1% |
| 2010 | 1 | 1% |
Other parts of the 2020 GMC Sierra 1500
245 complaintsTransmission and drivetrain
99 complaintsElectrical system
81 complaintsBrakes
55 complaintsOther or unknown
46 complaintsSteering
38 complaintsFuel system
27 complaintsEngine cooling
21 complaintsSuspension
18 complaintsVisibility (wipers, defrost, mirrors)
15 complaintsBody and structure
13 complaintsVehicle speed control
12 complaints
← All problems reported for the 2020 GMC Sierra 1500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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