RCM2-A398
RCM2_a398_sideAccelBPilLSigMon
Also written as RCM2_A398 / RCM2 A398 / RCM2_a398_sideAccelBPilLSigMon / rcm2_a398_sideaccelbpillsigmon
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-A398 mean?
Tesla alert code in the Restraint Control Module v2 (RCM2) module. B-Pillar Left Impact Sensor - Signal Monitor Left PedPro Impact Accelerometer (PCSL) - Defect 2nd Row Right Curtain Airbag - Not Configured in Fimrware but Physcially Present
Original Description
B-Pillar Left Impact Sensor - Signal Monitor Left PedPro Impact Accelerometer (PCSL) - Defect 2nd Row Right Curtain Airbag - Not Configured in Fimrware but Physcially Present
Affected Tesla Models
What You May Notice
- Restraint Control Module v2 alert: B-Pillar Left Impact Sensor - Signal Monitor Left PedPro Impact Accelerometer (PCSL) - Defect 2nd Row Right Curtain Airb
- 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-A398 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.