RCM2-A278
RCM2_a278_imuRollR8OffCompPosFLDC
Also written as RCM2_A278 / RCM2 A278 / RCM2_a278_imuRollR8OffCompPosFLDC / rcm2_a278_imurollr8offcompposfldc
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-A278 mean?
Tesla alert code in the Restraint Control Module v2 (RCM2) module. Drive Cycle IMU Roll Rate Offset Compensation Maximum Positive Saturation Fast Learning Limit Reached 1st Row Left Seatbelt Load Limiter - Resistance too High Right PedPro Impact Pessure Tube Sensor - Communication Error Left PedPro Impact Accelerometer (PCSL) - Connected but not Configured (Wrong Sensor Connected)
Original Description
Drive Cycle IMU Roll Rate Offset Compensation Maximum Positive Saturation Fast Learning Limit Reached 1st Row Left Seatbelt Load Limiter - Resistance too High Right PedPro Impact Pessure Tube Sensor - Communication Error Left PedPro Impact Accelerometer (PCSL) - Connected but not Configured (Wrong Sensor Connected)
Affected Tesla Models
What You May Notice
- Restraint Control Module v2 alert: Drive Cycle IMU Roll Rate Offset Compensation Maximum Positive Saturation Fast Learning Limit Reached 1st Row Left Seatb
- 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-A278 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.