Vectra Key Fob Battery

I have a problem concerning my 2000 Vauxhall Vectra with a gasoline engine. I'm getting a 'key battery low' warning, and keyless access doesn't work. An error message is stored, and unlocking is unreliable. Could this be just the key fob battery, or something more?

4 comment(s)

I had the same symptoms on my Vectra. Keyless entry failed, the dash showed a battery warning, and I struggled with the doors. First, check the battery. They're cheap and easy. What range do you get now? Does it only work when you're right next to the car?

The range is practically zero; I have to hold the key right next to the door handle for it to work, if it works at all. What battery type does the key fob require? After replacing it, will I need to reprogram the key?

Sounds like a dead battery! No need to reprogram. The key probably takes a CR2032 button cell, but double-check by opening the fob. If a new battery doesn't fix it, visit a local workshop. They can read the error code, but I'm 99% sure it's just the battery.

I replaced the battery in the key fob today, and it resolved all the issues. The keyless entry is working, and the error message disappeared. The total cost, including the battery, was 37€.

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