Keyless Entry Issues?

[dpsoden]

Hi all

I have recently bought an XC90 T8 Inscription and starting to get a few minor niggles - latest being the keyless entry. Have searched on here and have not managed to find an answer so hoping someone can help.

Simply, the keyless entry feature is not working, so the car has to be locked / unlocked with the key buttons. Still starts with no issue so it is being recognised somewhere, and have just replaced the battery in case that was the culprit but no change - wondered whether anyone had had a similar issue?

Thanks

David

[Lexman8]

Can't remember anyone reporting a keyless issue like that. Are you having to put the key in the cup holder's 'emergency' key detector to start the car? Have you tried the other key and the button-less fob??

[Philip Fisher]

Where is the key when you try and get in? In your pocket? Next to a mobile phone? In a bag with some metal objects on it?

As a first step, try and hold your key next to the door handle and see if that works. As Lexman says try the other key and the waterproof dongle too.

If it works near the handle then try moving progressively further away or around the car to see when it stops working.

[dpsoden]

thanks both - will try this later and report back

Have tried with key in hand and pocket but no difference, but I have not tried the other key or dongle yet.

To start, the key can be in my pocket, doesn't need to be in the cupholder.

Cheers

David

[simonjedrake]

Another angle to look at is the possibility of a very localised radio signal blocking the key fobs radio frequency that I have experienced several times in one location only - traced to a faulty local mobile phone mast.
To determine if this is the cause, park up a few 100yds away and see if it works then.

[dpsoden]

Originally Posted by simonjedrake

Another angle to look at is the possibility of a very localised radio signal blocking the key fobs radio frequency that I have experienced several times in one location only - traced to a faulty local mobile phone mast.
To determine if this is the cause, park up a few 100yds away and see if it works then.

The geeky side of me would love this to be the case! However, it's much less the car and much more the key it would seem. Second remote works fine so investigations continue

[Peter Bellingham]

Originally Posted by Lexman8

Can't remember anyone reporting a keyless issue like that. Are you having to put the key in the cup holder's 'emergency' key detector to start the car? Have you tried the other key and the button-less fob??

I had a problem with my V70 when I stopped near a fuel station some time ago, The car would not start/lock I had to insert the key fob in the slot provided which after that I never had another problem. After that it worked as it should do. But what I did find out from a friend of mine as he used to recover vehicles in the event of a breakdown etc was that if the car was parked near a police station,library,supermarket these type properties are used for the police where transmitters are on the roofs and the signal can be corrupted by that.

[Lexman8]

There is one antenna on each side of the car for keyless entry but I don't know their exact locations. I'd guess it's in the B pillar at glass level so that might be a good place to hold the key near if having problems.

The rear antenna is located between and below the 3rd row seats and can be seen by lifting the boot floor.

[Jcbrown]

Originally Posted by Lexman8

There is one antenna on each side of the car for keyless entry but I don't know their exact locations. I'd guess it's in the B pillar at glass level so that might be a good place to hold the key near if having problems.

The rear antenna is located between and below the 3rd row seats and can be seen by lifting the boot floor.

Just found this (well equivalent in the S90 manual) whilst looking for something completely different: Antenna locations for the start and lock system