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Vehicle speed controlPart report

2020 Subaru Legacy Vehicle speed control Problems

Complaints
4about this part
Share
3%of 121 total for the year
Median mileage
7,650miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the vehicle speed control of the 2020 Subaru Legacy, 3% of the 121 complaints for this model year. Where a mileage was given, the median is 7,650 miles. 1 of these say a crash was involved, according to the filers.

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 was driving on a four lane section going uphill on us50 in california where the speed limit is approximately 60 miles per hour. The car suddenly slowed down to approximately 25 to 30 MPH. All attempts to increase the speed to 55 to 60 MPH failed. I safely pull over and stopped the car and turned it off. It was restarted, and the problem did not occur again.”

NHTSA complaint #11413828, filed 2021-04, 7,650 miles

“Traveling approximately 50 MPH all the warning lights displayed and the vehicle lost power. The vehicle was pulled over to the shoulder. Unable to put it in park. Turned it off and on a couple of times before it would go into park. Drove it to the dealer but it wouldn't go more than 30 MPH. This has happened three times after having this vehicle for less than six months.”

NHTSA complaint #11386146, filed 2021-01, 6,000 miles

“The contact's wife owned a 2020 Subaru Legacy. The contact stated while his wife was driving approximately 3 MPH in a parking lot the vehicle suddenly accelerated and jumped the curb into woods and collided with a tree. The contact said his wife was not aware of any warning lights being illuminated. The vehicle front bumper and hood hit in the center and were both crumpled back about six inches. The contact hit the top of his head severely damaging the windshield on the passenger side and sustained minor cuts. …”

NHTSA complaint #11460011, filed 2022-04, 16,200 miles

“This vehicle is equipped with the Subaru Eyesight system which is a number of safety features like automatic cruise control, lane keep assist, and others. About once a week on average while driving the entire system will shut down and the screen will go dark. You lose the radio, bluetooth, navigation, and all the Eyesight systems. After about 30 seconds it will reboot and things will come back online but this is a major safety issue because you loose systems that help with safety. The dealership said it's a known software issue and there's nothing they can do until an update is available. …”

NHTSA complaint #11442179, filed 2021-11

Vehicle speed control: other model years

YearComplaintsShare of year
2025117%
202226%
202113%
202043%
201943%
201833%
201722%
201696%
2015149%
201436%
201346%
201244%
201153%
201085%
200858%
20063034%
2005158%
2004510%
200358%
200247%
2001912%
20001011%
19991213%
1998109%
199796%
199676%
199532%
199423%
199345%
199224%
199156%
199056%

Other parts of the 2020 Subaru Legacy

Visibility (wipers, defrost, mirrors)
66 complaints
Other or unknown
26 complaints
Electrical system
15 complaints
Forward collision avoidance
7 complaints
Transmission and drivetrain
7 complaints
Engine
4 complaints
Brakes
2 complaints
Lane departure
2 complaints
Air bags
1 complaints
Back-over prevention (rear camera)
1 complaints
Exterior lighting
1 complaints
Fuel system
1 complaints

← All problems reported for the 2020 Subaru Legacy

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