RCM2-A434
RCM2_a434_presFrntLDoorCommErr
Also written as RCM2_A434 / RCM2 A434 / RCM2_a434_presFrntLDoorCommErr / rcm2_a434_presfrntldoorcommerr
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-A434 mean?
Tesla alert code in the Restraint Control Module v2 (RCM2) module. Front Left Door Pressure Impact Sensor - Communication Error Right Pedestrian Protection Hood Actuator - Resistance too High The Right Hood Actuator may not perform as designed. The restraint control module has detected an incorrect impact sensor is connected. The impact sensor is swapped for the correct type. Passenger Front airbag 2nd stage - Cross Coupled
Original Description
Front Left Door Pressure Impact Sensor - Communication Error Right Pedestrian Protection Hood Actuator - Resistance too High The Right Hood Actuator may not perform as designed. The restraint control module has detected an incorrect impact sensor is connected. The impact sensor is swapped for the correct type. Passenger Front airbag 2nd stage - Cross Coupled
Affected Tesla Models
What You May Notice
- Restraint Control Module v2 alert: Front Left Door Pressure Impact Sensor - Communication Error Right Pedestrian Protection Hood Actuator - Resistance too
- 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-A434 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.