dtr_089
Moderate
Rivian · Trucks & SUVs
Rear Motor Inverter Fault
Quick Answer
Error code DTR_089 on your Rivian Trucks & SUVs means: Rear Motor Inverter Fault. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Reduce speed gradually and drive to nearest safe location
2
Power down vehicle and wait 30+ minutes for inverter cooling
3
Use diagnostic scanner to capture fault codes and inverter temperature data
4
Visually inspect rear motor and inverter connections for corrosion
5
Arrange service appointment for inverter module replacement or repair
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Rear Motor Inverter Assembly
HV Connector Kit
Dielectric Grease
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