RCM2-A818
RCM2_a818_upFrntPedProMLCrssCoup
Also written as RCM2_A818 / RCM2 A818 / RCM2_a818_upFrntPedProMLCrssCoup / rcm2_a818_upfrntpedpromlcrsscoup
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 RCM2-A818 mean?
Tesla alert code in the Restraint Control Module v2 (RCM2) module. Left Middle (V-Bar) PedPro Impact Accelerometer (PCSML) - Cross Coupled 0x135 ESP_135h - Checksum Error Passenger Front airbag 1st stage - Short Circuit 1st Row Left Side Airbag - Resistance too Low 1st Row Left Side Airbag - Not Configured in Fimrware but Physcially Present
Original Description
Left Middle (V-Bar) PedPro Impact Accelerometer (PCSML) - Cross Coupled 0x135 ESP_135h - Checksum Error Passenger Front airbag 1st stage - Short Circuit 1st Row Left Side Airbag - Resistance too Low 1st Row Left Side Airbag - Not Configured in Fimrware but Physcially Present
Affected Tesla Models
What You May Notice
- Restraint Control Module v2 alert: Left Middle (V-Bar) PedPro Impact Accelerometer (PCSML) - Cross Coupled 0x135 ESP_135h - Checksum Error Passenger Front
- Seatbelt pre-tensioner or side airbag may be affected
- SRS (Supplemental Restraint System) alert in vehicle diagnostics
How to Diagnose and Resolve
- 1 Do not ignore this alert — airbag system faults are safety-critical
- 2 Reboot the vehicle to check if the alert clears
- 3 Schedule a Tesla Service appointment promptly
- 4 The RCM module and wiring harness will be inspected
Severity Notes
RCM2-A818 is an Alert in the Restraint Control Module v2 system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.