Adaptive Cruise Failure
#1
AudiWorld Member
Thread Starter
Adaptive Cruise Failure
For about 24 hours, Adaptive Cruise would not work with my display showing an error message that Adaptive Cruise was unavailable and to consult my owner's manual. Then it started working again. I checked all the sensors when the problem started with no dirt or obstructions. There were no apparent weather factors and it actually started working again in a downpour. Has anyone else seen this problem and/or know the cause?
#2
AudiWorld Member
For about 24 hours, Adaptive Cruise would not work with my display showing an error message that Adaptive Cruise was unavailable and to consult my owner's manual. Then it started working again. I checked all the sensors when the problem started with no dirt or obstructions. There were no apparent weather factors and it actually started working again in a downpour. Has anyone else seen this problem and/or know the cause?
#3
AudiWorld Member
Thread Starter
I've seen it on my Q7, for a shorter time - maybe an hour or so. No idea why either, and I don't recall if I rebooted MMI, but it hasn't repeated. Phase of the moon, maybe. One of the reasons I have the opinion that iron-clad software reliability is not Audi's strong suit, reinforced by a dozen or so other software gremlins that periodically recur at varying intervals. I'd chalk it up to bad day at the factory, or random faults that just happen to random cars, but my wife's identically equipped Q7 has the identical issues. Admittedly an N of 2, but enough to convince me - it's Audi.
#4
AudiWorld Member
On the Q7, you can push down the central control **** while simultaneously pushing up the Nav and Media switches and it is essentially the same as Ctrl-Alt-Del on a computer. Works great for clearing the memory and restarting the system from zero. I didn't consider there might not be a similar procedure for the Q8, but I've certainly used it liberally on both my Q7s.
Last edited by Doc H; 12-21-2018 at 07:13 AM.
#5
AudiWorld Member
Thread Starter
On the Q7, you can push down the central control **** while simultaneously pushing up the Nav and Media buttons and it is essentially the same as Ctrl-Alt-Del on a computer. Works great for clearing the memory and restarting the system from zero. I didn't consider there might not be a similar procedure for the Q8, but I've certainly used it liberally on both my Q7s.
#6
AudiWorld Senior Member
For MMI Reset on the Q8 push and hold down the volume **** below the climate screen for approximately ten seconds.
#7
AudiWorld Member
Thread Starter
Thanks. I just got back from trying that when I got your message I am wondering if that actually resets the "operating system" or just the MMI. Thoughts? I was not smart enough to try that when I had the driver assistance fault. If it happens again I'll give that a try.
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#8
AudiWorld Senior Member
Assuming it’s a software reset similar to restarting a desktop or laptop computer, or your phone.
#9
I can certainly understand that there are customers who do not live within a comfortable distance of their dealerships, but assuming that is not the case, I would respectfully suggest going to the dealer and having this taken care of. There are, of course, software updates -- and who knows your Q8 may need one. It could also be a hardware issue -- things happen.
If you are able to get to your dealership, they most certainly would provide you with a loaner vehicle (probably a Q7) and you would at least have the issue registered.
We are a willing community of owners here, but for something this critical, I would go dealer first, AW second.
Good luck.
If you are able to get to your dealership, they most certainly would provide you with a loaner vehicle (probably a Q7) and you would at least have the issue registered.
We are a willing community of owners here, but for something this critical, I would go dealer first, AW second.
Good luck.
#10
AudiWorld Member
I can certainly understand that there are customers who do not live within a comfortable distance of their dealerships, but assuming that is not the case, I would respectfully suggest going to the dealer and having this taken care of. There are, of course, software updates -- and who knows your Q8 may need one. It could also be a hardware issue -- things happen.
If you are able to get to your dealership, they most certainly would provide you with a loaner vehicle (probably a Q7) and you would at least have the issue registered.
We are a willing community of owners here, but for something this critical, I would go dealer first, AW second.
Good luck.
If you are able to get to your dealership, they most certainly would provide you with a loaner vehicle (probably a Q7) and you would at least have the issue registered.
We are a willing community of owners here, but for something this critical, I would go dealer first, AW second.
Good luck.