Forward Radar Warning Light
The forward radar sensor is blocked, unavailable, misaligned, or malfunctioning, which can disable radar-based driver-assistance functions.
Clean the radar sensing area and inspect the front bumper. If the warning remains, scan the ADAS module and perform calibration when required.
Forward radar sensors can support adaptive cruise control, forward collision warning, and automatic emergency braking. Their operation depends on a clear sensor field and correct alignment.
⚠️ Drive With Caution
The vehicle may be driven with care, but radar-based safety systems may be unavailable. Do not rely on adaptive cruise or collision-assistance features until restored.
$100-$2,000+ depending on sensor, bumper, wiring, or calibration
Repair costs vary depending on the exact diagnostic trouble code, vehicle make and model, labor rates, and which component has failed. Always diagnose the problem before replacing any parts.
A blocked or misaligned forward radar can disable several ADAS functions. Clean and inspect the sensor area first, then diagnose and calibrate the system if the warning persists.
What blocks a forward radar?
Anything sitting between the radar and the road: packed snow, road salt, mud, heavy ice, or an aftermarket badge, light bar, or plate frame mounted over the grille emblem where the radar usually lives.
Will the radar warning clear by itself?
If it was a temporary blockage, yes, usually within a few minutes of driving once the sensor face is clear. A warning that returns every trip points at alignment or the sensor itself.
How is a forward radar fault diagnosed?
The radar cover is cleaned and inspected first, along with the front bumper and the sensor bracket, since even a light parking knock can push the aim off. The ADAS module is then scanned, radar alignment is measured against the maker specification, the wiring and communication are checked, and calibration is performed to the documented procedure.
How much does forward radar repair cost?
Cleaning is free. Alignment and calibration typically run $250-$500, and a replacement radar unit with calibration lands between $800 and $2,000.
See every fault code, sensor test, and repair step for ADAS-RADAR