Rivian R1S
RIV_AWD_ENGAGED
WarningAll-Wheel Drive Permanently Engaged - Service Required
What does RIV_AWD_ENGAGED mean?
R-code RIV_AWD_ENGAGED means "RIV_AWD_ENGAGED - All-Wheel Drive Permanently Engaged - Service Required". It is a manufacturer-specific diagnostic trouble code (DTC) in the electric motor / drive system. A fault has been detected in the riv_awd_engaged - all-wheel drive permanently engaged - service required — the control module has logged this condition during self-diagnostics. This warning should be addressed within the next few days to avoid further damage. This code applies to OBD-II compliant electric and hybrid vehicles.
Possible Causes
- Faulty or failed component in the electric motor / drive system
- Damaged or corroded wiring and electrical connectors
- Control module software error or firmware fault
- Poor or missing ground connection at the affected module
- Inverter or motor controller hardware failure
Recommended Actions
- 1 Avoid aggressive driving and schedule a diagnostic appointment within the next 1–3 days
- 2 Scan for all DTCs with an OBD-II scanner — note any related codes stored alongside RIV_AWD_ENGAGED
- 3 Inspect the electric motor / drive system component and its wiring for visible damage
- 4 Check for water intrusion in connector areas and clean contacts if corroded
- 5 Clear the DTC, road-test the vehicle, and re-scan to confirm whether the fault returns
- 6 If the fault persists after inspection and clearing, consult an EV-certified technician for component replacement
This code applies to all vehicles. View generic RIV_AWD_ENGAGED information →