No it’s DAB, FM, CarPlay etc.
It’s a possible explanation for the OP’s issue as the infotainment system is where all the vehicle settings are adjusted so they are linked. To be honest though I don’t see any loss of ADAS as serious. ACC switching off temporarily is annoying but not dangerous. Collision warning is additional to the driver’s eyes and doesn’t even exist on many cars. So not having them isn’t serious but it is annoying.
Hi Graham. This also happened to me yesterday morning (just around 10am) going north on the M90 just after the Kinross turn off and again a couple of miles further on. It also happened a couple of weeks ago one evening probably at the same locations but it was dark and I couldn't be certain they were exactly the same. On the way back south I was primed for it - as it's quite a scary moment when it happens as the power suddenly drops off when your at high speed! - but it never happened. I did notice that at the second location there's a highways sensor device(?) on a mast at the side of the carriageway and I wondered if it was interfering with the camera or radar - probably the latter. I couldn't see anything at the roadside for the first location.
Nope. Dry on Sunday. And I think it's the camera that shuts down the ACC in heavy rain. I had that on my previous car - a Mokka-e.
Yes the cruise control drops out, the collision warning shows as an alarm on the screen. There is nothing wrong with a car and this only occurs at a specific point on the motorway. I notice someone else has experienced the same problem at the same location.
Thanks for your reply Brian will continue to monitor and try to identify the cause. Because it's happening at specific locations I'm sure it's not the car.
There used to be a listening station a few miles away but it is no longer in use
Or airport radar?
Graham. I've been studying Google Street View but can't find the roadside sensor I mentioned in my post - of course, it may have been installed since Google photographed the road. However, I did notice a couple of small aluminium or galvanised steel roadside boxes on both sides of the motorway that may contain sensors or transmitting devices and which may be the source of the interference. It's unlikely I'll be on that part of the M90 for a few weeks so I can't be of any help in the short term. Brian
I have had the same drop out, thought it was due to dirt on radar sensor OR cameras on most of occasions it has happened on Motoway roads, so pulled of motorway onto slip road and cleaned cameras and radar sensor and was fine for a short while BUT after several times of cleaning cycle, just switch car
The radio and Apple Carplay seem to be susceptible to extenal electronic signals. My remote garage door opener when activated (attached to the dashboard with bluetac) sometimes mutes the radio/music for about 30 seconds. Occasionally it causes a phone call to be made on my mobile via Apple Carplay!
I have the same problem on the M25 near Reigate. Not every time and not the same location but the same stretch of motorway. Cruise control and collision warning etc stop working.
Thanks Craig. I'd read this post before I responded to Graham's original post. Useful stuff but Graham's and my experiences seem to be almost certainly location specific. I've never had an instance anywhere else apart from the 2 locations I mention. And the weather was clear, dry and warm; and I'd been driving for about 40 minutes. But any contributions to help solving the problem are always welcome.
