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Flat Battery in Key Fob - Warning

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My recent (non-Skoda) cars have given dashboard warnings when the battery in the key fob runs down. This gives the driver the opportunity to change the battery and to keep the key functional.

The battery in my Superb's key fob recently ran down, and it went from fully operational (working the button "plip" as well as the keyless entry) to completely flat during the course of a day at work. No warnings were displayed. I was unable to plip the car open, and had to walk to a shop, purchase a new CR2032 battery, and replace the battery in the key. Only then could I safely drive home.

This happened a week after the car had been serviced at the Skoda dealer - I'm presuming that they didn't replace the battery as part of the service.

I feel like carrying a spare CR2032 battery in case it happens again.

Given the number of alerts, warnings and other information that the Superb displays, I was surprised not to receive an indication that the battery was running down. Has anyone seen a warning in their Superb?

Model: 2024, SE L.
If it helps anyone reading this, changing the key's battery is easy once you've seen this; I managed this on a garage forecourt, using the lid of a Biro pen to release the old battery
https://www.youtube.com/watch?v=hfd7Ri1Vdtg


^^^ So no manual key in the fob?

  • Author
20 minutes ago, Evolution13 said:

^^^ So no manual key in the fob?

Yes, as the YouTube video shows, you can extract the metal key from the holder, which can then be used to open the driver's door. It's not clear to me how the engine's stop/start feature works when the fob's battery is flat; I went to buy a new battery instead.

As I said, I'm tempted to keep a spare CR2032 battery in the glove box in case it happens again.

To be clear: My question was why there was no warning that the battery was flat.

I got repeated warnings over a few days recently, probably 4 or 5 journeys during that period, that the key fob battery needed replacing. As you say it’s quite easy to replace them…

'Simply clever' to keep a battery or batteries in the car. Also rather obvious that if the Invoice or parts shown as replaced at a service does not show the cost of a key fob battery then you never got one. Getting stuff Free Gratis is not common at Skoda Dealerships. Even Free Wash and Vacuums are paid for if a service is paid for.

  • Author
14 minutes ago, Rifleman said:

I got repeated warnings over a few days recently, probably 4 or 5 journeys during that period, that the key fob battery needed replacing. As you say it’s quite easy to replace them…

That's interesting, and it makes me wonder why I didn't see the message on mine. Is this only available on the L&K model?!

I had mine go flat recently when I was off grid for the weekend. Key opened the door then placing the tip of the fob in the forward cup holder silenced the alarm and allowed me to drive home. No battery needed.

My in-laws had this with their S-Max once when they had it (full of children after swimming) and again when I had it a few weeks later.

Four hours for a recovery call-out, but managed to find a battery to replace the IKEA one in the fob!. I replace my CR2032 on all keys annually just before the service and only with a Duracell .....And have put their 10-year-old in charge of doing the same for their car keys!

I have found that the battery in my Superb's key fob dies very quickly because the car and key fob are in constant communication (The red light on the key flashes even when it's quite a distance from the car.)

I live in a long thin house, with my car parked alongside it I have to store my keys as far away as possible so that they can't communicate with the car. I do this after having the key fob battery die suddenly, with no warning, in as little as 3 months. I have never had this problem with any other car including a MK3 Superb.

  • Author
23 minutes ago, Ains said:

My in-laws had this with their S-Max once when they had it (full of children after swimming) and again when I had it a few weeks later.

Four hours for a recovery call-out, but managed to find a battery to replace the IKEA one in the fob!. I replace my CR2032 on all keys annually just before the service and only with a Duracell .....And have put their 10-year-old in charge of doing the same for their car keys!

Thanks. It's almost as if some sort of early warning system would be a good idea ("Low fob battery detected, change it soon") . So far, only Rifleman has seen it on their Superb.

  • Author
3 minutes ago, Fatso said:

I have found that the battery in my Superb's key fob dies very quickly because the car and key fob are in constant communication (The red light on the key flashes even when it's quite a distance from the car.)

I live in a long thin house, with my car parked alongside it I have to store my keys as far away as possible so that they can't communicate with the car. I do this after having the key fob battery die suddenly, with no warning, in as little as 3 months. I have never had this problem with any other car including a MK3 Superb.

Does the red light on the key mean that you are vulnerable to a "relay theft"? That the key can be detected (and boosted) from outside your house?

If so, it might be worth investing in one of those Faraday pouches or boxes to keep your keys in. HTH

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