NHTSA Complaint #11454193 — 2021 TESLA MODEL Y
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL issue reported to NHTSA
Complaint Details
| ODI Number | 11454193 |
| Vehicle | 2021 TESLA MODEL Y |
| Component | FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL |
| Date of Incident | |
| Date Filed | |
| Mileage | N/A miles |
| Crash | No |
| Fire | No |
| Injuries | 0 |
| Deaths | 0 |
| Vehicle Towed | No |
| State | OR |
Consumer Description
This vehicle when on ADAS (aka autopilot) and adaptive cruise control I experience constant "phantom" braking where car will slow down or slam on brakes for seemingly no reason. Most noticeable on a non separated highway phantom braking occurs constantly and is very predictable when large truck is near on the oncoming lane; happens probably 80% of the time. Slamming on the brakes for no reason is alarming and dangerous in my estimation. This system is completely unusable and very unnerving. Ironically I had a 2019 Model 3 with the same features and did this very rarely so this feature is much worse than it was on older vehicles with radar.
Related Complaints for the 2021 TESLA MODEL Y
Other FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL Complaints
#11713621
When driving with cruise control engaged the car randomly brakes and shows a "curvature assist " indication. The car ...
#11704381
In early Nov 2025 my Tesla Model Y began intermittently showing warnings about the forward collision warning system a...
#11700791
The car has a feature called "curvature assist" that takes control of braking and steering at times when using cruise...
#11687653
Tesla’s Full Self-Driving (FSD) system has repeatedly demonstrated unsafe behavior in my 2021 Model Y (VIN [XXX] , ~6...
#11683388
Immediately after an over-the-air (OTA) update on Aug 8, 2025, my vehicle began showing camera connection errors and ...
Recent Complaints for the 2021 TESLA MODEL Y
#11718843
LANE DEPARTURE: ASSIST
The car suddenly reduced lane assistance and steering assistance functionality. After calling Tesla they said it is n...
#11718843
LANE DEPARTURE: WARNING
The car suddenly reduced lane assistance and steering assistance functionality. After calling Tesla they said it is n...