Why are the parking‑/indicator bulbs failing only on one side of the car repeatedly?

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Why are the parking‑/indicator bulbs failing only on one side of the car repeatedly?

I’ve noticed that the parking lamps or turn‑signal bulbs on the right side of my Tiggo 8 Pro keep burning out — every few months only the right-side bulb goes off, while the left side stays fine. Is this likely a wiring o r socket issue e.g. poor ground, moisture ingress, o r could it be due to the bulb brand, vibration, o r heat build-up? What should I inspect to find the root cause?

Talha Kyanii asked on 06 Dec 2025 10:19:27 am

1 Answer

9 views |

Gari Master - on 06 Dec 2025 10:21:12 am

If bulbs on one side keep burning out, it’s often a localized electrical issue rather than the bulbs themselves:

Poor ground connection: A weak o r corroded ground can increase electrical resistance and heat the bulb filament.

Moisture ingress: Water o r condensation in the socket can cause short circuits o r corrosion.

Loose o r damaged wiring: Constant vibration may stress wires and sockets, especially on one side of the car.

Action:

Inspect and clean the affected socket.

Check the wiring harness for damage o r loose connectors.

Ensure proper grounding of the affected light circuit.