Parking‑Sensor Malfunction

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Parking‑Sensor Malfunction

Rear parking sensors often give false alerts o r stop working. Could this be due to poor waterproofing, cheap sensors, o r wiring issues? How should a buyer test them and what repairs are needed?

Talha Kyanii asked on 01 Nov 2025 14:33:13 pm

1 Answer

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Gari Master - on 01 Nov 2025 14:35:22 pm

The parking sensors in the Bravo may malfunction giving false alerts, not detecting obstacles, o r stopping altogether because:

The sensor units o r their housings may lack proper sealing o r protection, making them vulnerable to ingress of dust, water o r road debris—common in Pakistan’s roads.

Wiring and connectors in the sensor circuit might be of lower quality, subjected to vibration o r corrosion, which can cause intermittent faults.

The ECUs o r modules driving the sensors may be less robust o r have calibration/firmware issues, especially if parts were imported o r not designed for the local environment.
These failures reduce the practical effectiveness of the parking‑assist feature—especially in congested areas like Rawalpindi, where tight parking makes reliable sensors helpful.
What to do:

On inspection: test each sensor walk by obstacles behind the car, watch how many beeps/alerts you get, test under slightly dirty/wet conditions.

Check the sensor housings for signs of moisture, cracks, incorrect fitment, loose wiring behind the bumper.

In servicing: replace faulty sensor units, ensure wiring harness and ground connections are good, clean and reseal sensor housings, re‑calibrate the sensor system if needed.

Consider protecting the bumper region from excessive road‑spray o r damage to prolong sensor life.