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Forward collision avoidancePart report

2020 GMC Sierra 3500 Forward collision avoidance Problems

Complaints
1about this part
Share
2%of 51 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the forward collision avoidance of the 2020 GMC Sierra 3500, 2% of the 51 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Related service bulletins

Forward collision avoidance: other model years

YearComplaintsShare of year
2025212%
202412%
2023414%
202012%
201817%

Other parts of the 2020 GMC Sierra 3500

Transmission and drivetrain
19 complaints
Electrical system
9 complaints
Brakes
7 complaints
Engine
6 complaints
Fuel system
6 complaints
Other or unknown
6 complaints
Body and structure
5 complaints
Tires
4 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Air bags
1 complaints
Engine cooling
1 complaints
Exterior lighting
1 complaints

← All problems reported for the 2020 GMC Sierra 3500

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