Alarm going off for no reason

[Granitedragon]

Ahh, what about the trunk? Have you ever gotten the red warning light that the trunk is open? Might be worth opening and closing it to double check. My trunk latch was faulty and my alarm would go off bc of it

Hi - that's interesting - my CTEK lead runs under the boot lid of course and now that I have unplugged the charger the alarm hasn't gone off for 2 days - maybe it was enough pressure on the latch to trigger the alarm - can you share any more insight on the faulty latch or was that simply how it was described? Thanks

 

[Blackthought_]

Hi - that's interesting - my CTEK lead runs under the boot lid of course and now that I have unplugged the charger the alarm hasn't gone off for 2 days - maybe it was enough pressure on the latch to trigger the alarm - can you share any more insight on the faulty latch or was that simply how it was described? Thanks

Sure since I got the car opening and closing the trunk was finicky. Sometimes it would open and others times it would get stuck whether I closed it soft or hard. Most times when I would drive and I would accelerate or hit a bump the red warning light would come telling me the trunk was open when it was not.

Fast forward when I was on vacation the car was parked in the driveway at my air bnb and in the middle of the night the alarm goes off and I had trouble closing it. I knew it was the trunk as the rear tail lights were not turning off when I closed the trunk. My theory is that the trunk was caught on the first latch but not the second (main latch) so in the middle of the night it gave and the car thought it was open so it went off.

I ended up taking it to the dealer and they said it was a faulty latch and changed it. Since then it’s been perfect and no more alarms in the middle of the night!

 

[Granitedragon]

Sure since I got the car opening and closing the trunk was finicky. Sometimes it would open and others times it would get stuck whether I closed it soft or hard. Most times when I would drive and I would accelerate or hit a bump the red warning light would come telling me the trunk was open when it was not.

Fast forward when I was on vacation the car was parked in the driveway at my air bnb and in the middle of the night the alarm goes off and I had trouble closing it. I knew it was the trunk as the rear tail lights were not turning off when I closed the trunk. My theory is that the trunk was caught on the first latch but not the second (main latch) so in the middle of the night it gave and the car thought it was open so it went off.

I ended up taking it to the dealer and they said it was a faulty latch and changed it. Since then it’s been perfect and no more alarms in the middle of the night!

That's really useful info thanks. I reckon that may be my issue. Clue is the lights not going off as well. Thanks for taking the time to reply.

 

[drummingj]

Think I’ve got a similar thing going on.. just upset the neighbours with a random alarm at 11pm… went to look at it, doors and windows were fine… checked the boot and the left side was a little raised and not flush with the body.. the right seemed fine.. so I guess that’s why it went off?

I’ve also had the Amber boot warning light flash up a few times whilst driving the last 2 days… maybe something is going wrong? Or maybe I need to just smash the boot closed harder?

 

[drummingj]

Scorpion tracker app was showing voltage as 12.3v before and 12.6v after I left it running a while, so has made a bit of a difference. If alarm goes off again I will go for a spin instead

Hmm mine is showing 12.1v currently… is that considered ‘worryingly’ low?

 

[Beachbum]

The Scorpion Tracker voltage seems to vary with no Rhyme or reason to it. It was showing 12.4v when I left the house, went for a 50-60mile drive, got back and it was showing 12.2v. The next morning showing 12.6v.
I'm not sure you can really trust the accuracy of it at all

 

[Orchardbike]

When my car eventually comes back from the dealer, I should be able to tell you the accuracy of the Tracker voltage as I will be fitting a voltage display across the battery terminals. I believe this will be the most accurate measurement, so I can see how much if differs from the tracker reading.

 

[Beachbum]

When my car eventually comes back from the dealer, I should be able to tell you the accuracy of the Tracker voltage as I will be fitting a voltage display across the battery terminals. I believe this will be the most accurate measurement, so I can see how much if differs from the tracker reading.

Let me know which one you use and how easy it is to install(I'm guessing easy)

 

[Orchardbike]

Let me know which one you use and how easy it is to install(I'm guessing easy)

I’m going to use this one. It’s just a matter of connecting across the battery and drilling a hole in the battery cover. Someone’s already done it on here. The installed picture is theirs.

 

[MR69ALB]

Let me know which one you use and how easy it is to install(I'm guessing easy)

I purchased this, 10 minutes to install.

 

[Orchardbike]

I purchased this, 10 minutes to install.

Looks very similar to mine.

 

[AdrianL]

Did you ever resolve this?

I've just started having issues after giving the car a wash. Had a good run out today (about 4 hours), and drove it after washing too.... but every time I lock it, the alarm goes off after about 10 seconds.

All doors definitely closed... no warnings on dash... (though it did say no key present at one point after locking/unlocking about 10 times... but the car started fine).

 

[Orchardbike]

Did you ever resolve this?

I've just started having issues after giving the car a wash. Had a good run out today (about 4 hours), and drove it after washing too.... but every time I lock it, the alarm goes off after about 10 seconds.

All doors definitely closed... no warnings on dash... (though it did say no key present at one point after locking/unlocking about 10 times... but the car started fine).

Have you had the water shroud recall done?

 

[AdrianL]

Have you had the water shroud recall done?

I'm not sure - I thought that only affected the heater resistor?

It was literally in for a service less than a week ago though - they did perform a campaign / recall on the charcoal filter / evap line?

I can pop the front and inspect tomorrow (if there's a gap in the rain!)

 

[Orchardbike]

I'm not sure - I thought that only affected the heater resistor?

It was literally in for a service less than a week ago though - they did perform a campaign / recall on the charcoal filter / evap line?

I can pop the front and inspect tomorrow (if there's a gap in the rain!)

As part of it, they also seal the front fuse box

 

[AdrianL]

Is this the likely culprit then?

Is there any way I can check myself? My nearest Lotus dealer is 40 mins away.

 

[Orchardbike]

Is this the likely culprit then?

Is there any way I can check myself? My nearest Lotus dealer is 40 mins away.

I don’t know, but a lot of people have had issues after washing cars and I know part of the shroud recall is to seal the fuse box. I’m just putting 2+2 together. I may be getting 5 but worth looking into. I’d lift the frunk and see if the shroud has been fitted. I don’t know how you get to the loom connection, as I don’t have my car at the moment to check.

 

[AdrianL]

Makes sense. I'll look for the shroud - is there a diagram or picture for what to look for exactly?

Thanks for your suggestion too - I guess I'll have to give the dealer a call on Monday either way.

I was also going to try disconnecting the battery for a bit - see if it helps reset anything.

 

[Orchardbike]

Makes sense. I'll look for the shroud - is there a diagram or picture for what to look for exactly?

Thanks for your suggestion too - I guess I'll have to give the dealer a call on Monday either way.

I was also going to try disconnecting the battery for a bit - see if it helps reset anything.

I don’t think you can miss the shroud, it’s big and not particularly aesthetically pleasing! I’d certainly try the battery disconnect first, it’s a lot easier.