LKAS AEB, etc...

[Crimson]

Got in my 15 5.0 Ult this morning. Was a brisk 28 F outside. 30 seconds after startup, all my driver assist systems started alarming. Puzzled, I shut her down, and restarted. No more alarm, but as I'm driving away I notice my LKAS lines aren't on the HUD. Checking those settings at a stoplight, it said System Off. When I finally parked, I checked and verified it is supposed to be on, but had shut down for some reason. Later in the drive I got my AEB warning when I had to slam on brakes, so that's working, and it saw cars on either side of my lane so that was working too.

Is this a cold weather thing? No snow or rain to block a sensor, but could have been frost maybe? Will re-check this afternoon. Just curious if others have this experience.

On another note, (FYI) I discovered peeling clearcoat on my wheels, mentioned to my dealer service department last week, they said no problem, schedule an appointment, we'll need your car for 3-4 days while we get them refinished. I bought this in May 18 2015 CPO with 23K, with all warranty extensions, electronics, wheels etc... Pleased they didn't quibble over it, just said no problem. (Jim Ellis ATL)

 

[Spanky61]

Check and see if your sensors are iced up or covered with frost. It's happens! Make sure they are done correctly. Some refinishers do a poor job. If you have a wheel and tire warranty as in the Platinum coverage and you're not happy with the repair, have them replace them.

 

[dcrob95]

another note, (FYI) I discovered peeling clearcoat on my wheels, mentioned to my dealer service department last week, they said no problem, schedule an appointment, we'll need your car for 3-4 days while we get them refinished. I bought this in May 18 2015 CPO with 23K, with all warranty extensions, electronics, wheels etc... Pleased they didn't quibble over it, just said no problem. (Jim Ellis ATL)

I had all 4 wheels on my '15 5.0 replaced at 29k miles while under the initial 3/36 warranty a few months ago. All of them had the finish peeling off and you could see the black color of the wheel exposed. 1 was really bad and the rest of them were not as bad. The dealer got 4 new wheels and they were installed the next day. I certainly hope the new ones last longer than the originals, but at least for now my wheels look brand new unlike the originals that also had some curb rash on them.

 

[Crimson]

So update...in the afternoon, my LKAS also wasn't working and while driving, I checked and saw System off. Once I got parked again, simply pressed the button and it turned back on. Unsure how it turned off, but oh well. We'll see about the refinish. Thanks for the info guys.

 

[Suburbazine]

So update...in the afternoon, my LKAS also wasn't working and while driving, I checked and saw System off. Once I got parked again, simply pressed the button and it turned back on. Unsure how it turned off, but oh well. We'll see about the refinish. Thanks for the info guys.

You can turn it on/off while driving too.

 

[Mcc]

So update...in the afternoon, my LKAS also wasn't working and while driving, I checked and saw System off. Once I got parked again, simply pressed the button and it turned back on. Unsure how it turned off, but oh well. We'll see about the refinish. Thanks for the info guys.

Once it cancels itself for whatever reason (error condition, etc) it will stay off until you manually turn it back on. It could have been off for a while.