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dtr_023
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Rivian · Trucks & SUVs
HV Battery Isolation Fault
Quick Answer
Error code DTR_023 on your Rivian Trucks & SUVs means: HV Battery Isolation Fault. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
R1S-2024R1S-ADV-2024R1S-PERF-2024R1T-2024R1T-ADV-2024R1T-PERF-2024R2-2025R3-2025
Likely Causes
  1. High-voltage battery insulation breakdown
  2. Damaged isolation sensing circuit
  3. Water intrusion into battery modules
  4. Faulty battery pack isolation relay
  5. Grounding issue in HV system
How to Fix It
1
Do not drive the vehicle; isolation fault indicates safety hazard
2
Connect to Rivian diagnostic system to identify fault location
3
Measure HV battery insulation resistance with specialized equipment
4
Inspect battery pack for signs of water damage or corrosion
5
Replace battery isolation relay or affected battery modules as needed
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
HV Battery Isolation Relay
Battery Module (if damaged)
Insulation Resistance Meter
Related Error Codes
DTR_001DTR_012DTR_034DTR_045DTR_056
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