Hi "S", yes it's very frustrating,  but the key to the problem is, you've got to have the flashing red light working.

Have you checked the voltage of the batteries ?

When you have cleaned battery did you put it in with bare fingers ?

Just a couple thoughts.

Edited 5 April, 20206 yr by NZ100
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Hi NZ I can't check the voltage since because I'm in lockdown and my voltmeter isn't here with me, I'll have to check these batteries when I can. I'll also try and polish the batteries and try to insert them using a cloth, I did handle the batteries, but only lightly. 

 

I'll try again and report back later 👍

 

Thanks for your suggestions 

Update, new CR3025 battery fitted today and it's working again, I will be making certain that I keep these batteries in as spares. 

 

I'm glad I have 3 key's for the car and all are working again 👍

Edited 7 April, 20206 yr by Stonker
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Great news, now sit back and relax, if you can. 🥧☕