RCM2-A186
RCM2_a186_hoodActuatorRCrssCoup
Also written as RCM2_A186 / RCM2 A186 / RCM2_a186_hoodActuatorRCrssCoup / rcm2_a186_hoodactuatorrcrsscoup
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-A186 mean?
Tesla alert code in the Restraint Control Module v2 (RCM2) module. Right Pedestrian Protection Hood Actuator - Cross coupled Passenger Resistive Occupancy Switch - Short to Battery Passenger Front airbag 1st stage - Not Configured in Fimrware but Physcially Present Front Left Door Pressure Impact Sensor - Open Circuit Passenger Front airbag 2nd stage - Short to Battery
Original Description
Right Pedestrian Protection Hood Actuator - Cross coupled Passenger Resistive Occupancy Switch - Short to Battery Passenger Front airbag 1st stage - Not Configured in Fimrware but Physcially Present Front Left Door Pressure Impact Sensor - Open Circuit Passenger Front airbag 2nd stage - Short to Battery
Affected Tesla Models
What You May Notice
- Restraint Control Module v2 alert: Right Pedestrian Protection Hood Actuator - Cross coupled Passenger Resistive Occupancy Switch - Short to Battery Passen
- 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-A186 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.