Car won't lock after replacing fob battery

[boardtc]

I got the warning message listed on the entertainment screen to change my fob battery. I opened the fob outside a motor factors yesterday and seeing the CR2025 battery I bought a new one. Putting the new battery in and closing the fob, the car won't lock. I replaced the old battery and the same result. Disaster. I had to go somewhere today and leave the car unlocked in a parking lot for half the day. What is going on?

Edited 2 March by boardtc

[GreenMachine1.6]

Some batteries have an almost invisible film disk on them which needs removing, worth a look?

[gumdrop]

There is a limited (but adequate) time to replace the battery but also the battery must be the correct way up when inserted.

[NZ100]

In an emergency you can lock the car with the key.

Remove key hole cover with key, there's a slot underneath.  

Before you do anything, the red light must be flashing in the fob when you press it.

[stevo1]

Also use a quality battery !

[Cakemonster]

Have you tried RTFM?

[boardtc]

On 03/03/2024 at 09:29, Cakemonster said:

Have you tried RTFM?

 

Thank you for that. It sounds like other posters did not know either. I accessed the lock by watching

However, with the new battery none of the 3 buttons show a red light on the remote. Unlocking within 1 minute does not do a sync 😞 At least I can lock the car now with the key. I'll have to go to another garage for another battery in case the last one sold me a dud.

Edited 5 March by boardtc

[PetrolDave]

32 minutes ago, boardtc said:

However, with the new battery none of the 3 buttons show a red light on the remote. Unlocking within 1 minute does not do a sync 😞 At least I can lock the car now with the key. I'll have to go to another garage for another battery in case the last one sold me a dud.

The remotes are very sensitive to battery type and age but I do have to ask, since you say the red light doesn't show, whether there is a clear plastic film left on the battery?

Edited 5 March by PetrolDave

[boardtc]

55 minutes ago, PetrolDave said:

The remotes are very sensitive to battery type and age but I do have to ask, since you say the red light doesn't show, whether there is a clear plastic film left on the battery?

Thanks. No. I even broke a nail trying to see if there was anything on the surface!

[xman]

Did you put the battery in the right way round?

 

+ facing up

 

 

Check the battery with a multimeter should be about 3.3 volts less than 3.0 volts is a dead battery

Edited 5 March by xman

[NZ100]

There was alot said a while ago on this subject. 

After another member mentioned it, I started using 2032s, as long as you keep everything square they fit OK.

[boardtc]

I just called into another garage and he have me a 2032 and all worked first time. No need to reset/use emergency key! Thanks all!

[NZ100]

Result.  👍