2021-2022 Tesla Model 3 Braking & Stability Alerts
Some 2021-2022 Tesla Model 3 vehicles, specifically Heat Pump models, may display braking and stability control alerts due to a missing hydraulic control unit (HCU) wake-up wire. These alerts, often appearing during vehicle power-on, can typically be resolved with a simple vehicle power cycle.

Gilt auch für
- Tesla Model 3
- 2022
Symptoms
Owners of certain 2021-2022 Tesla Model 3 vehicles, particularly those equipped with a heat pump, may encounter unexpected warnings. These include "braking and stability control related alerts" that appear on the instrument cluster and touchscreen. These Tesla Model 3 braking alerts typically manifest during the vehicle's power-on sequence.
Root Cause
According to manufacturer communication NHTSA ID 10235000, the underlying cause for these alerts in some Heat Pump Model 3 vehicles is the absence of a hydraulic control unit (HCU) wake-up wire. This omission can lead to temporary communication issues within the vehicle's electronic stability control and braking systems.
What Owners Should Know
If you experience these "braking and stability control related alerts" in your 2021-2022 Tesla Model 3, it's important to know that the issue is often temporary. The manufacturer notes that such faults can typically be corrected and the affected functionality restored by performing a vehicle power cycle. This is a key piece of information for owners encountering the Tesla Model 3 braking alerts.
Owner Action
Should your Tesla Model 3 display braking and stability control warnings, the first recommended step is to perform a vehicle power cycle. This process usually involves powering down the vehicle completely and then restarting it, which can often clear the alerts and restore normal operation. If the issue persists after a power cycle, or if you have any concerns, contact Tesla service for further diagnosis and assistance.
Affected Components
The issue primarily involves the ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC) system, specifically related to the hydraulic control unit (HCU). While other components like the POWER TRAIN and FUEL SYSTEM, GASOLINE are listed in the general component categories for this communication, the specific fault is tied to the HCU.
Source: NHTSA Manufacturer Communication ID 10235000
Frequently Asked Questions
- What are the common symptoms of this issue in the Tesla Model 3?
- Owners may see "braking and stability control related alerts" displayed on their instrument cluster and touchscreen, typically when the vehicle is powering on. These are the primary Tesla Model 3 braking alerts associated with this problem.
- Which Tesla Model 3 vehicles are affected by the HCU wake-up wire issue?
- This issue primarily affects some 2021-2022 Tesla Model 3 vehicles that are equipped with a heat pump. The absence of a hydraulic control unit (HCU) wake-up wire is the root cause.
- How can I fix the 'braking and stability control related alerts' in my Model 3?
- The manufacturer communication NHTSA ID 10235000 indicates that these faults can typically be corrected by performing a vehicle power cycle. If the alerts persist, it is recommended to contact Tesla service.
- Is this a recall or a technical service bulletin (TSB)?
- This information comes from a manufacturer communication classified as a Technical Service Bulletin (TSB) by NHTSA (ID 10235000). TSBs inform technicians about known issues and repair procedures, which may or may not be covered under warranty depending on the vehicle's age and mileage.
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