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Forward collision avoidancePart report

2021 Tesla Model S Forward collision avoidance Problems

Complaints
48about this part
Share
27%of 179 total for the year
Median mileage
6,000miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 48 complaints about the forward collision avoidance of the 2021 Tesla Model S, 27% of the 179 complaints for this model year. Where a mileage was given, the median is 6,000 miles. 9 of these say a crash was involved, according to the filers. 2 recall campaigns on record are filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Driving on highway at 65-70 MPH with auto pilot and speed control engaged. Went to change lanes from left to right. Put on turn signal, cancelled auto pilot by turning steering wheel to right and moved to open right lane. There were no vehicles around us at all. The car suddenly, unexpectedly, and very shockingly slammed on the brakes causing items to be tossed around in the car, engaging all of our seat belts with some discomfort, and sending some loud alarm or warning sound to go off in the car. It scared me, my wife and daughter very much. …”

NHTSA complaint #11373709, filed 2020-11, 275 miles

“The vehicle put the brakes on when on adaptive cruise, but with very few cars around. The last time, there was no car in front of me, but the vehicle braked so fast the the car behind me almost rear ended me. I’ve noticed that it happened twice on a South bound stretch of I-35 in Temple texas. This needs to be addressed or there is a strong potential for an accident.”

NHTSA complaint #11467559, filed 2022-06

“In August 2022 I was driving my Tesla S. I was traveling 25 miles an hour or less. I unfortunately lost consciousness for a very short time. My tesla then crashed into a parked car. There was snow emergency braking nor any emergency alarms. In theory describes shouldn’t of happened with an emergency braking system.”

NHTSA complaint #11492305, filed 2022-11

“Our Tesla, in the Full Self Drive mode, has on more than one occasion applied the brakes suddenly without warning while traveling on the freeways. The date I indicate below was the last occurrence. I see that others have indicated this malady and I wanted to add our voice to this conversation. Thank you”

NHTSA complaint #11497620, filed 2022-12

“I was driving on I39 north of Madison WI this afternoon, it was a clear day with light traffic and early afternoon on adaptive cruise control when the car on two occasions braked hard for no apparent reason. This braking would be a serious safety concern if a car had been behind me, as they would not have anticipated me braking so severely for no reason. From my reading this is a known problem with this car.”

NHTSA complaint #11451788, filed 2022-02

Related recalls

Related service bulletins

Forward collision avoidance: other model years

YearComplaintsShare of year
2026229%
202425%
20231816%
20223424%
20214827%
20202329%
20191227%
20185029%
20176816%
2016396%
2015315%
201492%
201331%

Other parts of the 2021 Tesla Model S

Other or unknown
45 complaints
Steering
29 complaints
Electrical system
25 complaints
Brakes
16 complaints
Suspension
16 complaints
Vehicle speed control
16 complaints
Wheels
10 complaints
Lane departure
9 complaints
Body and structure
9 complaints
Tires
9 complaints
Seat belts
8 complaints
Exterior lighting
6 complaints

← All problems reported for the 2021 Tesla Model S

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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