TESLA Diagnostic
RCM-D021
RCM_d021_comEPBStatus
Also written as RCM_D021 / RCM D021 / RCM_d021_comEPBStatus / rcm_d021_comepbstatus
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 RCM-D021 mean?
Tesla diagnostic code in the Restraint Control Module (RCM) module. Signal NameDTCRCM_comEPBStatusTORCM_C95A87RCM_comEPBStatusCRCRCM_C95A70RCM_comEPBStatusCntrRCM_C95A69
Original Description
Signal NameDTCRCM_comEPBStatusTORCM_C95A87RCM_comEPBStatusCRCRCM_C95A70RCM_comEPBStatusCntrRCM_C95A69
Affected Tesla Models
Model SModel XModel 3Model Y
What You May Notice
- Restraint Control Module alert: Signal NameDTCRCM_comEPBStatusTORCM_C95A87RCM_comEPBStatusCRCRCM_C95A70RCM_comEPBStatusCntrRCM_C95A69
- 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
RCM-D021 is a diagnostic or informational code in the Restraint Control Module system. Typically no immediate action is required.
Other RCM Codes
RCM_a000 RCM_a001 RCM_a002 RCM_a003 RCM_a004 RCM_a005 RCM_a006 RCM_a007
View all RCM codes →