RCM2-A504
RCM2_a504_presRearRDoorCommErr
Also written as RCM2_A504 / RCM2 A504 / RCM2_a504_presRearRDoorCommErr / rcm2_a504_presrearrdoorcommerr
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-A504 mean?
Tesla alert code in the Restraint Control Module v2 (RCM2) module. Rear Right Door Pressure Impact Sensor - Communication Error There is a fault with the rear-right door impact sensor.
Original Description
Rear Right Door Pressure Impact Sensor - Communication Error There is a fault with the rear-right door impact sensor.
Affected Tesla Models
What You May Notice
- Restraint Control Module v2 alert: Rear Right Door Pressure Impact Sensor - Communication Error There is a fault with the rear-right door impact sensor.
- 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-A504 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.