What Does U0235 Mean?
The radar or ultrasonic sensor that measures distance to vehicles ahead for adaptive cruise control has stopped communicating. This disables or limits cruise control functionality, particularly distance-keeping features.
Common Causes
40%
Faulty front distance sensor or radar module failure
25%
Damaged sensor wiring harness or connector pins
15%
Sensor blockage by debris, ice, or misalignment after collision
12%
Power or ground circuit failure to sensor module
8%
CAN bus network fault or sensor calibration issue
Diagnostic Steps
1
Step 1: Visually inspect the front radar/distance sensor for physical damage, obstruction, or misalignment
2
Step 2: Check power and ground circuits at the sensor connector with a multimeter
3
Step 3: Inspect wiring harness and connector for damage, especially if vehicle has had front-end collision repairs
4
Step 4: Verify CAN bus communication signals at the sensor connector using appropriate test equipment
5
Step 5: Perform sensor calibration procedure using manufacturer scan tool or replace sensor if defective
Estimated Repair Cost
$250 - $1,200
Parts + labor, varies by vehicle and location
The radar or ultrasonic sensor that measures distance to vehicles ahead for adaptive cruise control has stopped communicating. This disables or limits cruise control functionality, particularly distance-keeping features.
The most common cause of U0235 (Lost Communication With Cruise Control Front Distance Range Sensor) is: Faulty front distance sensor or radar module failure
Typical repair costs for U0235 range from $250 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Adaptive cruise control and automatic emergency braking may be disabled. Use traditional cruise control only and maintain safe following distances manually.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0235 to identify the root cause.
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Quick Info
Category
Network
System
Cruise Control/Driver Assistance Systems
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
