ESP-A042
ESP_a042_FrRWSSMaxSpeedExceeded
Also written as ESP_A042 / ESP A042 / ESP_a042_FrRWSSMaxSpeedExceeded / esp_a042_frrwssmaxspeedexceeded
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-A042 mean?
Tesla alert code in the Electronic Stability Program (ESP) module. Right Rear Wheel Speed Sensor: Plausibility against second signal failed due to monitoring of wheel speed differences.
Original Description
Right Rear Wheel Speed Sensor: Plausibility against second signal failed due to monitoring of wheel speed differences.
Affected Tesla Models
What You May Notice
- ESP-A042 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-A042 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.