RCM2-A286
RCM2_a286_imuLongAOffCompPosSLDC
Also written as RCM2_A286 / RCM2 A286 / RCM2_a286_imuLongAOffCompPosSLDC / rcm2_a286_imulongaoffcomppossldc
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-A286 mean?
Tesla alert code in the Restraint Control Module v2 (RCM2) module. Drive Cycle IMU Longitudinal Acceleration Offset Compensation Maximum Positive Saturation Slow Learning Limit Reached The inertial measurement learned offset has reached the limit for this drive cycle. Auto clears on next drive cycle. Inertial Measurement Offsets can no longer be learned during this drive cycle. 0x257 DI_speed - Counter Error
Original Description
Drive Cycle IMU Longitudinal Acceleration Offset Compensation Maximum Positive Saturation Slow Learning Limit Reached The inertial measurement learned offset has reached the limit for this drive cycle. Auto clears on next drive cycle. Inertial Measurement Offsets can no longer be learned during this drive cycle. 0x257 DI_speed - Counter Error
Affected Tesla Models
What You May Notice
- Restraint Control Module v2 alert: Drive Cycle IMU Longitudinal Acceleration Offset Compensation Maximum Positive Saturation Slow Learning Limit Reached Th
- 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-A286 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.