Alarm going off
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2nd Gear
Joined: May 2021
Posts: 2
Likes: 0
Alarm going off
Hi,
I have a troublesome alarm on my discovery 5. It can be parked all day at work (10 - 11 hours a day) and not go off once. Once parked on my drive at home it will be anything between 1 - 6 hours before it will go off. If I unlock and lock with the key fob it will go off again in about 2 hours, if I go out, open any door shut it and lock again it will be fine all night and normally fine for a few days again until it decides to play up again.
It can get quite dusty at work, so I thought that may be playing up with some of the sensors on the days I don't wash it off, yesterday I gave it a good wash off and still the alarm went off a couple of hours after parking at home.
Any ideas or is it a dealer job?
I have a troublesome alarm on my discovery 5. It can be parked all day at work (10 - 11 hours a day) and not go off once. Once parked on my drive at home it will be anything between 1 - 6 hours before it will go off. If I unlock and lock with the key fob it will go off again in about 2 hours, if I go out, open any door shut it and lock again it will be fine all night and normally fine for a few days again until it decides to play up again.
It can get quite dusty at work, so I thought that may be playing up with some of the sensors on the days I don't wash it off, yesterday I gave it a good wash off and still the alarm went off a couple of hours after parking at home.
Any ideas or is it a dealer job?
Last edited by Tony1987; May 14, 2021 at 07:17 AM.
Three Wheeling
Joined: Oct 2018
Posts: 78
Likes: 27
Hi,
I have a troublesome alarm on my discovery 5. It can be parked all day at work (10 - 11 hours a day) and not go off once. Once parked on my drive at home it will be anything between 1 - 6 hours before it will go off. If I unlock and lock with the key fob it will go off again in about 2 hours, if I go out, open any door shut it and lock again it will be fine all night and normally fine for a few days again until it decides to play up again.
It can get quite dusty at work, so I thought that may be playing up with some of the sensors on the days I don't wash it off, yesterday I gave it a good wash off and still the alarm went off a couple of hours after parking at home.
Any ideas or is it a dealer job?
I have a troublesome alarm on my discovery 5. It can be parked all day at work (10 - 11 hours a day) and not go off once. Once parked on my drive at home it will be anything between 1 - 6 hours before it will go off. If I unlock and lock with the key fob it will go off again in about 2 hours, if I go out, open any door shut it and lock again it will be fine all night and normally fine for a few days again until it decides to play up again.
It can get quite dusty at work, so I thought that may be playing up with some of the sensors on the days I don't wash it off, yesterday I gave it a good wash off and still the alarm went off a couple of hours after parking at home.
Any ideas or is it a dealer job?
I had a similar issue about 6 months ago and the cause ended up being a hood latch issue.
I kept receiving a "bonnet open" warning and experienced the same thing as you...car would sit at work all day just fine, but the alarm would go off at the most inopportune (2:00 am, etc.) times while parked at home. If you scroll through the menus in the instrument cluster you can pull up the cause of the "last alarm" and it would tell me "bonnet opened". It was fixed under warranty.
3rd Gear
Joined: Jun 2016
Posts: 3
Likes: 1
Having the same issue but it’s the front drivers door, LHD. As soon as I lock the vehicle alarm goes off. If I do the manual lock on the side of the door as soon as I shut it it unlocks on its own. Any ideas? I’ve been spraying WD 40 on the latch as someone suggested but it will go a few days and then do it again. Alarm with go off 20-30 times a day while I’m at work.
4th Gear
Joined: Jun 2023
Posts: 4
Likes: 1
As suggestd above scroll through the menus in the instrument cluster to see what set the alarm off last. My partner had a similar issue in her Discovery Sport (2018). Its most likely a faulty door latch that will need to be replaced (solder joints drying ouut and cracking? on the circuit board ) that's telling the computer that the door is open.
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