Renault Trafic alarm keeps going off at random times

" An engineer said this is a known problem with no cure at the moment." Strange they haven't found a solution . just have to keep at them to get it fixed ,

Trouble is every time I have to take van to garage I can't work - not ideal. I would like to know if other people are having this problem as well and if there is any work around / solution??

Yes I'm getting this too on my 2023 swb sport van
Is there an issue?

Got same issue with my 2023 it went of at 12 am 6 am starting to piss the neighbors of

This should have been sorted long ago , crazy situation

I’ve got the same issue had the van since February! Sometimes 3 or 4 times a night. Garage keep telling me to double lock and hold the button until it beeps then stops (this disables proximity sensors in the front apparently) but it still goes off. Worse in the cold weather. Possibly expansion contraction of the metal in the back where the sensor is.

I had RAC out who ran tests and reported fault with Alarm Module. Is booked in with Renault to exchange Alarm Module under warranty. Been waiting for part to be available since end September and finally booked in for replacement next week (5th December). Alarm has kept on going off all this time.

You could please update the forum if this is successful .

Will do

Had the van in a few months ago and said they’d replaced the alarm but been going off all night and my neighbours are going crazy

Allan I had to keep chasing Renault about replacing the alarm - will update couple weeks after the Alarm Module has been replaced.

Yeah spoke to Renault today who said it’s a known issue and need to order a replacement module. They will phone when it’s arrived and I can take it in. In the meantime I don’t know what to do. Every night I hold lock button till it beeps but last night it was still going off. Only solution was to leave it open which is not good.

Looks like you cant even pull the alarm fuse as other circuits are on same fuse


Renault Trafic (2017) – fuse box diagram
17 Alarm, horn, lighting and wiper stalks

Please lock van if in auto if not use flob.
then hold down lock until you hear a buzz.
Not this is for my dogs as they move about; but will be still locked but no sensors.
Depends on model and year, but worh trying.

Above suggestion is USUALLY for switching off interior sensor but certainly worth a try . Sometimes the sensor can be triggered by wind entering via heater vents and setting the interior sensor off or dud sensor

I have the same problem, In fact it just happened 5 minutes ago. Seems worse when it’s frosty, currently -5 here. I’ve had a few rude awakenings recently, neighbours must love me.. can’t believe I’m having to do with with a £35k van…

I’m having exactly the same problem, 2023 Sport +. Doesn’t disturb me at night because I keep it at my work premises but the surrounding flat residents must be pretty pissed off with it by now. Definitely worse now the weather is colder. £35k, expect better.

You would think they had a solution to what seems a common fault by now . You just got to keep at them till it gets resolved

Alarm unit was changed yesterday - will update in a couple of weeks to let you know if alarm going off has stopped

Thank you , appreciated

I had the same issue with my alarm going off on Renault trafic 2023
But managed to stop it by cleaning then spraying wd40 on the bonet sensor and the sliding side door.
Also there is an alarm sensor between the rear doors inside at the top which I cleaned and I unplug all usbs before I lock the van and that seems to have stopped the random alarm going off.

Currently having the same issue, if I temporarily turn the sensors off the issue goes away would be nice to see a fix for this
23 lwb sport+

Been having this issue on a 23 plate nissan primastar (basically identical to renault trafic). Had nissan take a look at it which proved to be a waste of time. Tried the long press to disable interior sensors which doesn’t stop the random triggers. The only way i have found to stop it happening is to lock the van with the fob, then unlock with fob, put key in ignition and turn on & off 4 times then close door and lock with fob again. You should hear the long beep & the random alarms stop. Obviously not ideal having to completely disable the alarm on a brand new van but at least its not going off multiple times every night at all hours

With a 23 plate you should keep at them for a solution whilst under warranty , wont help with any insurance claim if they found alarm disabled .Might help others as a temp solution till it gets resolved

Message for Gary Brown
Just wondering if the new alarm module solved the alarm issues.

Awaiting possible update

Alarm started going off (6 times now) on a 23 plate traffic, 400 miles from new.
Last few days noticed alarm was going off throughout the day, thought nothing of it, untill reading posts. Today. I’ve had all the doors open, and the problems started.
Ive read people’s posts, ive tried the holding the lock button untill beep, then locked, alarm still gone of twice.
Slammed side door really hard, ( shut line on passenger door/ slide door now very tight at the top, compared to gap at lower) but no alarm has gone off for now ( 45mins) hope that’s the problem.
I will be phoning dealer in the morning.

Door out of alignment on such a new vehicle certainly wont help . hope it solves the fault . Could maybe let the forum know the outcome , please ?

My alarm goes off and stop start disables itself after a cold night
I think it’s the minimum battery threshold voltage as its law. If stop start is activated the van needs to start when this function is on so they put a minimum threshold in so they can guarantee the battery has enough power to start it when needed, I think the alarm has a anti-tamper voltage switch signal due to low battery voltage - it goes off give or take half an hour the same time every night if we have a cold spell - always at about 4:30 in the morning at the coldest
that’s my view on it
Example: minimum voltage threshold for the battery is 12.5v when it drops below this the stop start feature gets deactivated alarm goes off thinking it’s been tampered with while set

Hi Richard (and all) - since Renault replaced the alarm unit the alarm has not gone off. So fingers crossed this has resolved the problem .

I have 2 x 23 plate Trafic vans and both are doing the same, always when it freezes. Renault want me to take the vans in for investigation but it means they will be out of service for at least a day and I'm certain they won't find a fault during the day when it's not freezing. They also won't offer me a courtesy vehicle so all in all pretty useless.

Did the WD40 on the contacts fix the issue?

No update

No update

It’s a strange on I cleaned all the side door contact’s sprayed a small bit of WD40 and it worked all over Christmas and new year alarm didn’t go off.
I live in Scotland so the temperature was low over the festive period. But I’ve driven to Oxford for work and the alarm went off last night.
So now I’m baffled it’s strange it was all right all that time then it went off.

I’m having the same issue on my Renault traffic business plus crew lwb ‘23 van. I’ve called a Renault and they said they knew about the issue and there were ‘things they could do’ to stop it and I took it in. Since they have had it, it has been fine for a month or two. Tonight it has randomly gone off 4 times in the space of an hour, it is the coldest it’s been in a while. I tried holding the lock button down to disable interior sensor but no joy. I have found a cobweb by the side sliding door in the rear passenger section and removed it, I’ve also started it up and moved it slightly on the drive. Fingers crossed it doesn’t go off again!!

The alarm has gone off again today! Does anybody have a way of disabling it instead of leaving the van unlocked all night? I can’t get it booked in again until 30th Jan and it’s going to piss the neighbours off!

I am having the exact same issue with my 2022 Renault traffic sport lwb. Issue started end of 2022 when it randomly goes off anywhere between 12-am through to 6am. Took it to the dealer and they said this is a common issue and is with the alarm module. They eventually replaced it a month later. It does seem to happen more in the cold weather. It’s now the current time hence I’m looking for a solution and guess what! It went off at 1:30am last night and now twice at 3am in the space of 30 minutes of each other. I have deadlocks fitted which I always use and I know the van is locked as it folds both wing mirrors in. I left the van unlocked but it still went off! I checked the front and back cab for moths/cobwebs but found nothing. Will be taking it to them this morning as I won’t be getting any more sleep just sitting next to the keys ready to press the unlock button. They need to get this sorted as it’s driving me insane with sleepless nights and my neighbours probably hate me! If I find any solution I will let everyone know.

We have had this issue since having the van, and I am disgusted that Renault will not address the issue. My dealer has said the same, bring the van in for investigation but work stops this.
We also have been trying to raise awareness with Renault about security on the van because of tool theft, and it baffles me that their advice is to disable the alarm... Honestly baffled, customer services is dreadful!

By taking their advice to disable the alarm would probably cause problems with your insurance if any theft / stolen claims were made

SOLVED!!

2022 Sport + - Had this issue since the day i purchased it over a year ago. Waited 5 months for Renault to get a slot to book in. Had it for a day but couldn't find the issue but acknowledged there was a problem with alarm. 2 months to get a Renault appointment for specialist to resolve issue. No Luck

This had been so annoying (worse as temperature drops) and going off continually even with volumetrics disabled, that i ripped out the light cluster in headlining and completely dsiconnected the module labelled "Vodaphone Automotive"

Just disconnecting the sesnsors does not resolve it, the module needs completely removing which is just 3 simple connections.

I have tested this a dozen times over the past 2 months, re-installing and removing and it is 100% this module at fault.

No idea why it's labelled Vodaphone as everything else works as it should.

Hi, thanks for info, what is it that you disconnect ? & what functions does it stop ?

Not sure what it does , having read this at 1am , I have just done it this morning .

Very easy to get out. I took the middle of the light out, and levered the big plastic bit off.

The module is just stuck on with a tape . Like he said, 3 easy wiring connections.

If this works , your a genius

Thank you for info that hopefully solves the problem members are getting

There is a module in the back of the van high up between the double doors which I assume does the ultrasonic/volumetric which has vodaphone on it.
I’ve got the the same problem with the alarm going off especially when the temperature drops.
How easy is it to get the light out?

I had a major problem with the alarm going off usually at night! I tried a couple of things but the thing that seems to have worked, so far, is leaving it in neutral instead of in gear when it’s parked up. Since doing this it hasn’t gone off once

No idea why leaving car out of gear or in gear should affect alarm going off . Would be very interested in how it could in any way affect the alarm especially if h / brake applied and holding .

Just bought Renault trafic extra swb van last month, the alarm goes off several times usually in the middle of the night now First when it was freezing cold, then today it’s not that cold and it happened again I have a friend to who has one for 3 months same problem and the RAC came out under the warranty and told him it’s a known fault for a recall , he contacted the Renault dealership and spoke to the sales person who said he wasn’t aware of any fault which he didn’t was true ! He is now been told they have not got the parts available and is waiting to be contacted , figured I will be the same

Is it possible to disable the alarm, while still locking the doors?

I’m having same problem on a 2023 Interstar and the van is in the dealers awaiting repair.Apparently they have other van that have been waiting repair for the same issue for months.
Did you find a solution?
Thanks,
Mark

Been no updates other than those already posted above .

Hi I have the same issue, alarm triggered when the temperature outside is getting near freezing. Also have you noticed that the dash displays “traction control active “ on the dash display when you open the drivers door after the alarm has had a false trigger ? Mine does. My van is a 72 plate sport + crew cab. If you want to disable the alarm all you have to do is open the drivers door and hold down the lock button on the dash for about 5 seconds,you will hear the locks lock , unlock then lock. Just shut the door the van will be locked with no alarm set. Hope this helps

Disarming alarm wont help if any insurance claim of theft etc .

Till it gets fixed, better than leaving it open ,It has to state on your insurance about the alarm because they will require a thatcham certificate. If you have a sport or a sport plus it has a built in tracker that many don’t know about. It you sign up for the data collection it will track your van through the Renault app. My van has a thatcham tracker on it from scorpion and my insurance company are not interested as they did not give me a discount because I have one fitted, I now know that it’s an issue with false triggers and can argue the point with my local dealer.

All modern cars have an alarm which is automatically activated unless switched off .If you deactivate it and car / vehicle stolen it will give them grounds to renege om policy .If you have a thatcham tracker , excellent asset .Used to give a discount if fitted , surprised it's no longer the case

Had the same problems with false alarms in the early hours
On my 2022 traffic sport garage could not find a cure so had a lightbulb moment taped up the 2 sensors in the cab had no problems for over a year now not ideal but saves sleepless nights.

^ Might help others

To lock the van with no alarm set open drivers door, press the lock button on the dash next to the hazard switch hold it down until you hear it lock unlock then lock again, when you close the drivers door the van will be locked with no alarm, when you open the door the alarm will be reactivated when next locked. This is in the manual which comes with the van. It’s not a hack it’s a feature. There are times when you may need to have the van locked and no alarm like when it’s being transported or on a ferry so that the alarm is not going off all the time.

Hi Gary. Did you manage to resolve the alarm problem? I have 23 plate Trafic and had problems since new.

^ Been no update from member since posting on Jan 8, 2024 (6 months ago)