Tesla Alert Codes Explained

Every Tesla reports internal alert codes (like BMS_a117) when something needs attention. Search the dictionary below to find what an alert means and what to do about it. MyTeslaMate logs them automatically: hosted TeslaMate with no server to run.

Signal Name	Description	Condition	Impact	Important
RCM2_a606_comStwAngStatChkSm	RCM2_a606_comStwAngStatChkSm		-	No
RCM2_a663_comVCSEATDrestMIA	0x30C VCSEATD_restraintStatus - MIA	The RCM is not observing the VCSEATD restraint status message on the CAN bus.	The Safety Restraint System may not perform as designed.	No
RCM2_a667_comVCSEATDOccpy	0x30C VCSEATD_restraintStatus - Driver Occupancy SNA or Issue	The restraint control module has detected an issue with the driver occupancy switch.	The Safety Restraint System may not perform as designed.	No
RCM2_a666_comVCSEATDbuckle	0x30C VCSEATD_restraintStatus - Driver Buckle Switch SNA or Issue	The restraint control module has detected an issue with the driver seat buckle.	The Safety Restraint System may not perform as designed.	No
RCM2_a665_comVCSEATDrestCntr	0x30C VCSEATD_restraintStatus - Counter Error	There is a counter error with the VCSEATD restraint status message.	The Safety Restraint System may not perform as designed.	No
RCM2_a662_comVCSEATstps	RCM2_a662_comVCSEATstps		-	No
RCM2_a605_comStwAngStatMIA	RCM2_a605_comStwAngStatMIA		-	No
RCM2_a661_comVCSEATocs	RCM2_a661_comVCSEATocs		-	No
RCM2_a601_comChassisCANSilent	Communication to the Restraint Control Module (RCM) on the Chassis or RCM Private CAN bus is silent.	The restraint control module does not see communication on the Chassis or RCMPrivate CAN bus.	The Safety Restraint System may not perform as designed.	No
RCM2_a686_comDIchassControlChkSm	RCM2_a686_comDIchassControlChkSm		-	No
RCM2_a685_comDIchassControlMIA	RCM2_a685_comDIchassControlMIA		-	No
RCM2_a655_comGTWESP1Cntr	RCM2_a655_comGTWESP1Cntr		-	No
RCM2_a654_comGTWESP1ChkSm	RCM2_a654_comGTWESP1ChkSm		-	No
RCM2_a653_comGTWESP1MIA	RCM2_a653_comGTWESP1MIA		-	No
RCM2_a651_comDIstate2Cntr	RCM2_a651_comDIstate2Cntr		-	No
RCM2_a650_comDIstate2ChkSm	RCM2_a650_comDIstate2ChkSm		-	No
RCM2_a649_comDIstate2MIA	RCM2_a649_comDIstate2MIA		-	No
RCM2_a630_comGTWACSMIA	0x228 GTW_airbagCutoffStatus - MIA	The RCM is not observing the GTW ACS message on the CAN bus.	The Safety Restraint System may not perform as designed.	No
RCM2_a648_comDIstateCntr	RCM2_a648_comDIstateCntr		-	No
RCM2_a647_comDIstateChkSm	RCM2_a647_comDIstateChkSm		-	No