ESP family
ESP_a019_WSSSignRearAxle
ABS (anti-lock braking system) disabled
What does the ESP_a019_WSSSignRearAxle alert mean?
Wheel Speed Sensor swapped rear axle
What you'll see in your Tesla
- ABS (anti-lock braking system) disabled
- Drive with caution
What triggers it
One wheel speed sensor is mounted backwards on the rear axle
When it clears
Fix WSS mounting alignment and power cycle
Potential impact
Will disable VDC/TC and degrade ABS
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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