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April 29, 2022 Service bulletin

Some Heat Pump Model 3 vehicles were built without a hydraulic control unit (HCU) wake-up wire, and in...

Tesla technical service bulletin SB2233003 for 2020-2022 Tesla Model 3.

Bulletin number
SB2233003
Component
Electronic stability control: automatic (ASC)
Summary
Some Heat Pump Model 3 vehicles were built without a hydraulic control unit (HCU) wake-up wire, and in rare circumstances, braking and stability control related alerts may appear on the instrument cluster and touchscreen during the vehicle power-on process. Such faults can typically be corrected and the affected functionality restored with a vehicle power cycle.

Owners of these vehicles have filed 1,184 complaints in the driver assistance category.

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