C0400moderate severityChassis
Adaptive Cruise Control Sensor Alignment
on 2020 Toyota Camry 2.5L I4 · FWD
What this code means
The adaptive cruise control distance sensor is out of calibrated alignment.
Symptoms
- ACC unavailable message
- ACC warning light
- Cruise control not functioning
- Forward collision warning inactive
Common causes
- Sensor misaligned after collision
- Sensor bracket bent
- Windshield replacement shifted sensor
- Front fascia repair changed sensor aim
Diagnostic steps
- Perform ACC sensor alignment procedure
- Check sensor mounting bracket
- Inspect front fascia for damage or misalignment
- Verify sensor aim with manufacturer target and procedure
- Check for windshield-related codes if camera-based
Repair notes
Perform ACC sensor alignment using manufacturer-specified targets and procedure.
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Other Chassis codes on this vehicle
C0021
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C0022
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C0023
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C0024
RR Wheel Speed Sensor Range/Performance
C0025
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C0026
RF Wheel Speed Sensor Circuit Intermittent
C0027
LR Wheel Speed Sensor Circuit Intermittent
C0028
RR Wheel Speed Sensor Circuit Intermittent
C0035
Left Front Wheel Speed Sensor Circuit
C0036
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