87611VC010 Subaru RADAR ASSY B & S, Price: 482.69$, Weight: 0.172kg

Subaru Blind Spot & Rear Cross‑Traffic Radar Module 📡🚗

This OEM radar sensor watches the lanes beside and behind your Subaru. It powers Blind Spot Detection (BSD) and Rear Cross‑Traffic Alert (RCTA), lighting mirror icons and warning you when a vehicle, bike, or fast‑approaching object is in the danger zone. If you value safe lane changes and stress‑free reversing, this module is a must.

Why you need it ✅

It reduces side‑swipe risks, helps during tight parking exits, and supports lane‑change assist logic. A healthy sensor keeps the alerts accurate and timely, day or night, rain or shine.

How it works 🧠

Mounted behind the rear bumper corner, a millimeter‑wave radar scans adjacent lanes. It measures distance and relative speed using Doppler return, tracks targets, then shares data via CAN to the body/ADAS controllers. The system triggers mirror lamps, cluster messages, or beeps when a threat is predicted.

If the unit is faulty ⚠️

• BSD/RCTA OFF message or mirror icons stay lit
• No alerts, late alerts, or random beeps
• Diagnostic codes for radar misalignment or internal fault
• Water ingress or cracked bracket after a bump

What happens if broken ❌

Lane‑change warnings vanish, blind‑spot coverage is lost, and reversing becomes risky. The car may disable safety features to prevent false alerts.

Fitment and install notes 🔧

Use genuine spec hardware and the correct bumper bracket. Keep the sensor face unpainted. After installation, perform alignment/calibration with a scan tool, clear DTCs, and road‑test to confirm stable BSD/RCTA operation.