Kia Stonic rear indicator bulb keeps going out – is this a wiring issue? Detail:

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Kia Stonic rear indicator bulb keeps going out – is this a wiring issue? Detail:

My 2021 Kia Stonic’s left rear indicator bulb has burned out twice in the last 6 months. The first time I replaced it, the new bulb only lasted around 2 months. I’m based in Islamabad, and the mechanic said there might be moisture o r loose wiring in the rear light housing. Has anyone else in Pakistan faced this issue with the rear indicators o r tail lights? Is this a common fault, o r should I switch to better quality bulbs o r maybe go for LED?

Talha Kyanii asked on 13 Sep 2025 13:28:09 pm

1 Answer

29 views |

Gari Master - on 13 Sep 2025 13:29:25 pm

Yes, this is another issue that some Kia Stonic owners in Islamabad and Lahore have faced, especially during the monsoon season o r winter months.

🔧 Possible Causes:

Moisture Inside Rear Light Housing:
In many cases, the seal on the rear tail light isn’t perfect, allowing condensation to build up, which can short o r damage the bulb.

Loose o r Corroded Socket/Wiring:
If the bulb socket o r the wiring harness is loose, corroded, o r burnt, the connection can become unstable, causing the bulb to fail.

Low-Quality Bulbs:
Like with the headlight issue, using cheap local bulbs often leads to quick failures.

✅ Solutions:

Ask a mechanic to inspect and clean the bulb socket and check for any corrosion o r burnt wires.

Apply dielectric grease to protect the bulb connection from moisture.

Replace the bulb with a branded o r LED version, which lasts longer.

Check the light housing for cracks o r leaks—if needed, seal it with silicone to prevent water ingress.

If the problem continues, a full rear light wiring check might be necessary.