RCM-A049
RCM_a049_sideAccelCPillarRight
Also written as RCM_A049 / RCM A049 / RCM_a049_sideAccelCPillarRight / rcm_a049_sideaccelcpillarright
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-A049 mean?
Tesla alert code in the Restraint Control Module (RCM) module. There is a fault with the right C-Pillar impact sensor. The restraint control module is not armed. The restraint control module is armed. The restraint system will not function as designed. There is a fault with the left hood actuator. There is a fault with the second stage of the driver airbag. There is a fault with the front-right seat airbag. The reprogramming limit has been exceeded. Left vehicle controller CAN communication fault. No left vehicle controller CAN communication fault present. There is a fault with the Emergency Notification Signal-1 line. There is a fault with the front-right impact sensor. There is a fault with the second row right-side pretensioner. There is a fault with the driver knee airbag. The safety system has observed an impact. The yaw rate inertial measurement unit is faulted.
Original Description
There is a fault with the right C-Pillar impact sensor. The restraint control module is not armed. The restraint control module is armed. The restraint system will not function as designed. There is a fault with the left hood actuator. There is a fault with the second stage of the driver airbag. There is a fault with the front-right seat airbag. The reprogramming limit has been exceeded. Left vehicle controller CAN communication fault. No left vehicle controller CAN communication fault present. There is a fault with the Emergency Notification Signal-1 line. There is a fault with the front-right impact sensor. There is a fault with the second row right-side pretensioner. There is a fault with the driver knee airbag. The safety system has observed an impact. The yaw rate inertial measurement unit is faulted.
Affected Tesla Models
What You May Notice
- Restraint Control Module alert: There is a fault with the right C-Pillar impact sensor. The restraint control module is not armed. The restraint control
- 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-A049 is an Alert in the Restraint Control Module system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.