What causes RIV_BMS_WARN?

The most common causes of RIV_BMS_WARN include: Battery management system (BMS) malfunction; High voltage battery cell imbalance; Battery temperature sensor fault; High voltage contactor failure. A professional OBD-II scan tool is recommended for accurate diagnosis.

How do I fix RIV_BMS_WARN?

Recommended steps to address RIV_BMS_WARN: (1) Schedule service as soon as possible (2) Reduce driving speed and avoid long trips (3) Monitor for additional warning messages (4) Have the vehicle diagnosed by a certified technician. Always consult a qualified EV technician for high-voltage system repairs.

Is it safe to drive with RIV_BMS_WARN?

Driving with RIV_BMS_WARN is not recommended for extended distances. Schedule service within a few days to prevent further damage. Monitor for any additional warning lights.

RIV_BMS_WARN

Warning

Battery Management System Warning

Severity

Warning

What does RIV_BMS_WARN mean?

Fault code RIV_BMS_WARN means "Battery Management System Warning". This is a Rivian-specific EV diagnostic trouble code for the Rivian Skateboard platform. It is classified as "battery" with a severity level of "warning". Applicable models: Rivian R1S (2022+), Rivian R1T (2022+), Rivian R2 (2025+).

Possible Causes

Battery management system (BMS) malfunction
High voltage battery cell imbalance
Battery temperature sensor fault
High voltage contactor failure

Recommended Actions

1 Schedule service as soon as possible
2 Reduce driving speed and avoid long trips
3 Monitor for additional warning messages
4 Have the vehicle diagnosed by a certified technician