AD992

I am facing the same issue, I believe it has something to do with the mirrors. My Porsche dealer said this is normal after PPF detailing and they will fix it once I bring it in.

Ian M

Further to my earlier post, my AD has had confirmed this week by Porsche Germany that the use of PPF on the rear bumper, over the area where the two radar sensors are, is 'not authorised'. '...The function of the LCA will be affected'

I can obtain no clarification as to why only some cars seem affected whilst others are not.

Poonstar

Just got my car wrapped and the same LCA issues. On top of that the Front Parking sensors failed to engage too. Guess its to the dealer now. Hopefully not a big cost. Aside from that the car looks SICK! lol but still pretty annoyed.

tarrat

It seems that the LCA radars in the rear bumper are either weaker than the 991 version, or calibrated different. Had a full wrap on my 992, STEK DYNOmatt. I get the warning that LCA is not working and then it goes gray to indicate it’s not available, but it is partially working. If a vehicle is next to me on either side, or in my blind spot slightly to my rear, the lights in the mirrors work fine. They do not work however if vehicles are approaching at speed from either side. Bumpers and mirrors were removed for the wrap and everything was recalibrated by the dealer after. This may explain why LCA works after some wraps, but not others, or in my case only works when other vehicles are close to the radars. Haven’t had time to see if the radars can be calibrated for sensitivity or not.

AD992

Update: I brought the car 2 days ago and they resolved it. Apparently it was battery that got drained, they charged it overnight and it resolved the issue!

FYI, I have full PPF on the car.

AG1

Just got my car PPF'd, now having the same issue. Has anyone resolved this without removing PPF? Can the dealership adjust sensitivity?

Garmin935

I’m in the same boat. Got full car XPEL including rear bumper. Nothing was removed (not the mirrors and not the bumpers). Actually was a pretty crappy job by the local shop. Didn’t wrap around edges.

Anyway, drove car home after the PPF installation yesterday without any problems. Drove 10 miles today in heavy rain and then the “Lane Change Assist Not Available. Service Required” message appeared. Drove home. Parked. Shut off engine and restarted. Message still there. Car still wet. Has anyone had this issue just from rain? My X5 loses blind spot monitoring in heavy rain until it dries out. Any insight appreciated.

AG1

My issue was not specifically in the rain. In my case, the PPF shop removed the mirrors so that the side PPF would be one piece. Apparently, removing the mirrors while the ignition is on causes a fault and the fault has to be cleared by the dealership. For me, they dealership charged me $250 to clear the fault and everything has been working since then.

Garmin935

did you wrap your rear bumper?

AG1

Yes.

phaun16

Well, I just had delivery of a C2 on Tuesday. Did wrap front; not the rear.

But today, driving home, I said to myself, maybe there is something wrong with the sensors based on everything written here about PPF on the rear. Then, the dreaded thought---called my SA, "Wasn't LCA on the build sheet?" "sure isn't, have it right here" ARRGHHH! 17 iterations and I left off the LCA, while every other one had it; and not worth adding/or even possible.

So, first if it's never worked, double check that.

But, I guess in good news, it wont break.