ESP-A028
ESP_a028_FrLWSSMaxSpeedExceeded
Also written as ESP_A028 / ESP A028 / ESP_a028_FrLWSSMaxSpeedExceeded / esp_a028_frlwssmaxspeedexceeded
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does ESP-A028 mean?
Tesla alert code in the Electronic Stability Program (ESP) module. Maximum wheel speed reached. Range monitoring for WSS signal which monitors non-plausible high wheel velocity. Range monitoring for WSS signal which monitors non-plausible high wheel velocity Wheel signal has to be below non-plausible high frequency for 2.5 seconds. Will disable VDC/TC and degrade ABS Longitudinal Acceleration Sensor: Adjustment not possible (Offset too large) Inertial signal failed plausibility/integrity checks Inertial messages are present/valid on the bus. Review RCM/DI alerts for other indicators of failure Lost Communication with VCFRONT Control Module: Message Timeout Short circuit of the WSS_FL sensor line to 12V. Short circuit of the wheel speed sensor line to + voltage. Check WSS connection for short circuit and repair/replace harness or sensor Lost Communication With Brake Booster -iBooster: Message Timeout
Original Description
Maximum wheel speed reached. Range monitoring for WSS signal which monitors non-plausible high wheel velocity. Range monitoring for WSS signal which monitors non-plausible high wheel velocity Wheel signal has to be below non-plausible high frequency for 2.5 seconds. Will disable VDC/TC and degrade ABS Longitudinal Acceleration Sensor: Adjustment not possible (Offset too large) Inertial signal failed plausibility/integrity checks Inertial messages are present/valid on the bus. Review RCM/DI alerts for other indicators of failure Lost Communication with VCFRONT Control Module: Message Timeout Short circuit of the WSS_FL sensor line to 12V. Short circuit of the wheel speed sensor line to + voltage. Check WSS connection for short circuit and repair/replace harness or sensor Lost Communication With Brake Booster -iBooster: Message Timeout
Affected Tesla Models
What You May Notice
- ESP-A028 may appear with another Tesla alert in the Electronic Stability Program (ESP) system.
- The vehicle may limit charging, driving, comfort, or safety features depending on the active alerts.
- The alert may clear after sleep, but recurring alerts should be treated as service-relevant.
How to Diagnose and Resolve
- 1 Reboot the vehicle by holding both scroll wheels
- 2 Check for available OTA software updates
- 3 If alert persists after reboot, schedule a service appointment
Severity Notes
ESP-A028 is an Alert in the Electronic Stability Program system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.