NHTSA Complaint #11467346 — 2018 TESLA MODEL X

VEHICLE SPEED CONTROL issue reported to NHTSA

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Complaint Details

ODI Number	11467346
Vehicle	2018 TESLA MODEL X
Component	VEHICLE SPEED CONTROL
Date of Incident	June 1, 2022
Date Filed	June 3, 2022
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	CA

Consumer Description

While on cruise control (autopilot) on the highway, the vehicle occasionally violently slows down. The majority of the time, this happens near or just before an exit/entrance ramp and if the car is in the rightmost lane. It happens regardless of traffic conditions and even if there are zero cars around, it will still "hiccup" and hit the brakes. I've noticed that the cruise control system sometimes automatically changes the maximum speed for the cruise control to 35-45 MPH which explains the sudden braking. It is semi-replicable by setting the cruise control to a comfortable highway speed (say 65 MPH) while the car is in the rightmost lane, then driving past a (normally) heavily trafficked entry/exit merging area. If requested, I can probably find a safe time and area to replicate this and send in my dashcam footage of the incident.

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