Alarm sometimes triggers inappropriately

Alarm sometimes triggers inappropriately

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Rob_RCF

Original Poster:

163 posts

18 months

Wednesday 25th October 2023
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I've had my 2023 GT less than 2 months now. One of the main annoyances I've had with it so far is the alarm sometimes goes off when I open the door. It does this maybe 1 in 20 times.

I use keyless entry most of the time, so it's: walk up to car with the key in my pocket > press button on door to unlock > open door > alarm goes off > mild panic to get key out of pocket and press unlock to silence the alarm.

I can't think of anything I'm doing differently on the times that it goes off. Does this happen to anyone else? My searches didn't really return any results so perhaps it's an isolated issue?

kdempsie

98 posts

176 months

Wednesday 25th October 2023
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Rob, this also happens to me. I have had two Alpines and both did it. The first car seemed to be cured after first service when they did some kind of configuration or reset. The second car was fine for the first few months and has now started the same thing. It will go back for another small warranty item shortly so I will hopefully get it sorted then.

Keith.

Colin P

459 posts

150 months

Wednesday 25th October 2023
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Not had that myself. That said, I pretty much always use the key fob to lock it. Personally I don't like keyless entry and would rather the inconvenience of pushing the button on the key fob in exchange for the added security of turning off the remote entry.


The only time I have heard the alarm was on the Hydrofoil to the IOM - which reminds me - if anyone knows how to disable the sensors that would be useful - in the end I had to leave it unlocked.

LE62NDE

350 posts

27 months

Wednesday 25th October 2023
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Mine gives a sort of strangled alarm sound when I open the door with keyless entry. The alarm never sounds completely - it's as if it recognises the key as I get in.

There are details of how to disable the alarm sensors somewhere on here, but I'm afraid I can't remember where...

bcr5784

7,182 posts

152 months

Wednesday 25th October 2023
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I think the problem is that the car key software is buggy. Depending on exactly where you are it may or may not recognise the car key and therefore regard the open door as legitimate or not.

There is a similar issue with the rear boot button. Depending on exactly where you stand it may or may not be sure that the key is outside the car - and therefore may not lock the car when the button is pressed.

Even when the battery is new the car will sometimes say "card key not found" when I am in the driving seat - depending on where on my person the key is.

Liam22

138 posts

113 months

Wednesday 25th October 2023
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LE62NDE said:
Mine gives a sort of strangled alarm sound when I open the door with keyless entry. The alarm never sounds completely - it's as if it recognises the key as I get in.
Same here. 1 in 20, perhaps even 1 in 50 times. The alarm squawk is very brief. Perhaps just 0.2s

Doesn't bother me enough to do anything about it.

timbo999

1,350 posts

262 months

Wednesday 25th October 2023
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Colin P said:
The only time I have heard the alarm was on the Hydrofoil to the IOM - which reminds me - if anyone knows how to disable the sensors that would be useful - in the end I had to leave it unlocked.
Hold the key fob lock button down when locking until the alarm gives three beeps and that disables the motion sensors. Worked for me on the ferry to Caen on the way to the Circuit des Ramparts (just name dropping!).

jont-

121 posts

96 months

Thursday 26th October 2023
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Pause for a second or two between pressing the button and opening the door.

I had this early on and it was suggested that the system can't disable quickly enough so the door sensor trips before the alarm is disabled. Since doing that I've never had the problem.

Colin P

459 posts

150 months

Thursday 26th October 2023
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timbo999 said:
Hold the key fob lock button down when locking until the alarm gives three beeps and that disables the motion sensors. Worked for me on the ferry to Caen on the way to the Circuit des Ramparts (just name dropping!).
Hmm, will give it another go, but I did try that.... a lot, as I could see the car during the whole trip.

Rob_RCF

Original Poster:

163 posts

18 months

Thursday 26th October 2023
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Thanks all for the replies, nice to know I'm not the only one, although at the same time kind of disappointing.

jont- said:
Pause for a second or two between pressing the button and opening the door.

I had this early on and it was suggested that the system can't disable quickly enough so the door sensor trips before the alarm is disabled. Since doing that I've never had the problem.
Thanks Jon I will try this. That might make sense since the alarm is a separate system installed this side of the channel iirc, just because the car has recognised the key and unlocked, doesn't mean the alarm has disabled yet. Shame about the delay though, the whole point of keyless entry is it's supposed to be convenient.