milahunter1

Trajet Key Battery Low

My 2005 Hyundai Trajet with a diesel engine is showing a 'key battery low' warning. The keyless access has stopped, and there's an error stored. Unlocking and locking is difficult. Any ideas? Mileage is 75842 km. I'm guessing it's the key fob battery.

A 2005 Hyundai Trajet displayed a 'key battery low' warning, causing issues with keyless access and locking. The likely cause was identified as a depleted key fob battery. The suggested solution was to replace the battery, which resolved the issue without needing further reprogramming.

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4 comment(s)

Sounds like it could be the key fob battery. Does the spare key work? If it does, then changing the battery is a good start. Have you tried that?

Good point about the spare key. I'll check. Assuming it IS the battery, is it just a swap, or is there a reset procedure?

If the spare works, then it's likely the battery. Usually, it's a straight swap. Sometimes the car needs to relearn the key. If it doesn't work after the change, you may need to visit a workshop to reprogram the key.

Thanks, that was spot on. I changed the battery myself for 37€, and it solved the problem!

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HYUNDAI

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TRAJET