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2021-2022 Tesla Model Y Braking & Stability Alerts

Some 2021-2022 Tesla Model Y vehicles may display "braking and stability control related alerts" on the instrument cluster and touchscreen during power-on. This issue stems from a missing hydraulic control unit (HCU) wake-up wire. A vehicle power cycle can typically restore functionality.

Byeditor marcus weber2022 Tesla Model Y
2022 TESLA Model Y — 2022 TESLA Model Y manufacturer_communication
Editorial illustration generated for this article.
NHTSA ID 10235002Tesla Model Y braking alertsTesla Model Y stability control alertshydraulic control unit (HCU) wake-up wireHCU wake-up wirebraking and stability control related alertsModel Y power-on alertsTesla Model Y TSB2021 Tesla Model Y2022 Tesla Model Y

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Tesla Model Y
2021

Some 2021-2022 Tesla Model Y vehicles may experience unexpected warnings related to their braking and stability control systems. This issue, documented in NHTSA Manufacturer Communication 10235002, points to a specific manufacturing detail that can trigger these alerts.

Symptoms

Owners of affected 2021-2022 Tesla Model Y vehicles may observe "braking and stability control related alerts" appearing on both the instrument cluster and the touchscreen. These warnings typically manifest during the vehicle's power-on sequence.

Diagnosis / Trigger Conditions

The root cause of these alerts is attributed to some Model Y vehicles being built without a crucial "hydraulic control unit (HCU) wake-up wire". This missing wire can lead to the system not initializing correctly, resulting in the display of error messages. The issue specifically occurs during the vehicle power-on process.

Temporary Correction

According to the manufacturer communication, if you encounter these "braking and stability control related alerts" in your 2022 TESLA Model Y manufacturer_communication, the affected functionality can often be restored by performing a vehicle power cycle. This suggests that while the underlying wiring issue exists, a simple restart can temporarily clear the fault and regain normal operation.

Owner Action

If your 2021-2022 Tesla Model Y displays "braking and stability control related alerts" during startup, first attempt a vehicle power cycle. If the issue persists or recurs frequently, it is recommended to contact Tesla service for further diagnosis and a potential permanent resolution related to the missing hydraulic control unit (HCU) wake-up wire.

Source: NHTSA ID 10235002

Frequently Asked Questions

What are the common symptoms of this Tesla Model Y issue?
Owners may see "braking and stability control related alerts" displayed on their instrument cluster and touchscreen, particularly when the vehicle is powering on.
What causes the braking and stability control alerts in some 2021-2022 Tesla Model Y vehicles?
The alerts are caused by some Model Y vehicles being manufactured without a hydraulic control unit (HCU) wake-up wire, which can lead to system initialization errors.
How can I temporarily fix the 'braking and stability control related alerts' on my Tesla Model Y?
According to NHTSA Manufacturer Communication 10235002, these faults can typically be corrected and functionality restored by performing a vehicle power cycle.
Does the 2022 TESLA Model Y manufacturer_communication indicate a permanent repair for the missing HCU wake-up wire?
The communication primarily describes a temporary correction via a vehicle power cycle. For a permanent fix addressing the missing hydraulic control unit (HCU) wake-up wire, owners should contact Tesla service directly.

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