R
dtr_145
Moderate
Rivian · Trucks & SUVs
Adaptive Cruise Control Sensor Blocked
Quick Answer
Error code DTR_145 on your Rivian Trucks & SUVs means: Adaptive Cruise Control Sensor Blocked. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Front camera or radar sensor obstructed by dirt or debris
  2. Mud, snow, or ice buildup on sensor lens or antenna
  3. Physical damage to sensor housing or connector
  4. Misalignment of forward-looking sensor after collision
  5. Sensor calibration drift or failure
How to Fix It
1
Park in safe location and visually inspect front bumper area
2
Locate ACC sensor and clean lens/antenna area with soft cloth
3
Remove any ice, snow, or debris blocking sensor field of view
4
Test ACC system at highway speed; if functional, problem is resolved
5
If ACC remains unavailable after cleaning, schedule sensor recalibration
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
Adaptive Cruise Control Sensor (if damaged)
Microfiber Cloth
Related Error Codes
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