Collision Mitigation & Cruise Control Not Working - Civinfo
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post #1 of 51 (permalink) Old 25th May 2018, 17:38 Thread Starter
 
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Collision Mitigation & Cruise Control Not Working

For some reason the Green ACC & LKAS lights are no longer showing green on my dash and the cruise control doesn't seem to be functioning either.

Tried switching the collision mitigation on and off using the button but no difference.

Its definitely not working as it usually activates when cars turn left in front of me but this didn't happen tonight on the journey home.

I thought it would have flagged up if the system wasn't functioning correctly but no.

Anything I can do prior to calling the dealer?
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post #2 of 51 (permalink) Old 25th May 2018, 18:40
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The only real thing before getting the dealer in is checking the sensors -
Are the front sensors, parking and smooth sensor pad clean and dry?
Are optical sensors on the windscreen clean and unobstructed?
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post #3 of 51 (permalink) Old 25th May 2018, 19:13
 
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You say the ACC and LKAS indicators are no longer showing green, what are they showing?

Not showing at all? Main switch been pressed so system is off perhaps?
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post #4 of 51 (permalink) Old 25th May 2018, 19:19 Thread Starter
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Originally Posted by Steve_m View Post
You say the ACC and LKAS indicators are no longer showing green, what are they showing?

Not showing at all? Main switch been pressed so system is off perhaps?
Up until now the ACC and LKAS have always shown up in green text, now there is nothing.

I dont really understand why previously the LKAS was showing up green even though it wasn't activated with the button, seems a bit weird.

I have cleaned all the sensors and tried switching the system on and off but it makes no difference.

The cruise control is completely dead.
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post #5 of 51 (permalink) Old 25th May 2018, 19:25
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Quote:
Originally Posted by James Robertson View Post
Up until now the ACC and LKAS have always shown up in green text, now there is nothing.

I dont really understand why previously the LKAS was showing up green even though it wasn't activated with the button, seems a bit weird.

I have cleaned all the sensors and tried switching the system on and off but it makes no difference.

The cruise control is completely dead.
Sounds foobar - Dealer job imo
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post #6 of 51 (permalink) Old 25th May 2018, 22:27
 
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Sound like it’s turned off with the “MAIN” switch on the steering wheel, just re-press it to turn ACC and LKAS back to ready.
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post #7 of 51 (permalink) Old 26th May 2018, 10:29
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Sounds foobar
"F u b a r"
First time I heard this expression was in Tango & Cash.

Last edited by Ron240; 26th May 2018 at 10:44.
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post #8 of 51 (permalink) Old 26th May 2018, 10:33
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Originally Posted by Steve_m View Post
Sound like it’s turned off with the “MAIN” switch on the steering wheel,
just re-press it to turn ACC and LKAS back to ready.
That's what it seems like, but couldn't possibly be that simple. You would have to give the OP enough credit to know how to turn on the cruise control.
It defaults to off when the engine is switched off anyway.
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Last edited by Ron240; 26th May 2018 at 10:35.
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post #9 of 51 (permalink) Old 26th May 2018, 18:42
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It defaults to off when the engine is switched off anyway.
Mine doesn't. 'Main' stays on and the ACC and LKAS indicators are green from a cold start. The LKAS is not activated though.
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post #10 of 51 (permalink) Old 26th May 2018, 18:54
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Mine doesn't. 'Main' stays on and the ACC and LKAS indicators are green from a cold start. The LKAS is not activated though.
I have never known cruise control to stay active after an ignition cycle.
Is your car CVT by any chance?
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post #11 of 51 (permalink) Old 26th May 2018, 20:43
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I have a 1.0 manual and mine also stays active, I.e. via the ‘Main’ switch. The saved speed is not saved after the engine is switched off though. I now just keep the ‘Main’ switch on so ‘ACC and LKAS are always displayed in green.
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post #12 of 51 (permalink) Old 26th May 2018, 21:41
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Originally Posted by Ron240 View Post
I have never known cruise control to stay active after an ignition cycle.
Is your car CVT by any chance?
No.
As above "The saved speed is not saved after the engine is switched off though." Neither the ACC nor LKAS is activated. Just the LKAS and ACC indicators on in green indicating the 'Main' is on, as if you switch 'Main' off the ACC and LKAS green indicators go AWOL. I have to press the LKAS button to actually activate it and the 'Set' button to activate ACC.
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post #13 of 51 (permalink) Old 27th May 2018, 09:12
 
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Quote:
Originally Posted by Steve_m View Post
Sound like it’s turned off with the “MAIN” switch on the steering wheel, just re-press it to turn ACC and LKAS back to ready.
This would be my guess as well. Mistakenly turned off the system by pressing the main button. If there was something malfunctioning they turn amber and you get a system check warning in the center area of the dash.
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post #14 of 51 (permalink) Old 28th May 2018, 15:47 Thread Starter
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Thanks guys, its not the main button. I do have some clue....lol.

I found something online about switching off cruise control by holding down the distance button. I will try that.

Im pretty sure there is a malfunction though.

Last edited by James Robertson; 28th May 2018 at 15:50.
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post #15 of 51 (permalink) Old 28th May 2018, 15:48 Thread Starter
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Mine doesn't. 'Main' stays on and the ACC and LKAS indicators are green from a cold start. The LKAS is not activated though.
Yeah, i find it weird that the LKAS light is on even though not activated. You would think it would only come on after pressing the button below the wheel.
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post #16 of 51 (permalink) Old 28th May 2018, 16:15
 
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Originally Posted by James Robertson View Post
Thanks guys, its not the main button. I do have some clue....lol.

I found something online about switching off cruise control by holding down the distance button. I will try that.

Im pretty sure there is a malfunction though.
Doesn't apply to the Euro version unfortunately. Tried that already, it's supposed to switch between ACC and CC. Dealer time I'm afraid. Keep us posted.
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post #17 of 51 (permalink) Old 28th May 2018, 17:17
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Ok....user error, "My Bad" as they say. Turns out I haven't a clue and should RTFM before spouting off on forums.

I had to hit MAIN & then LIM a couple times to cycle the ACC & LKAS mode back on.

All working again.

Last edited by jamesaberdeen73; 28th May 2018 at 18:08.
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post #18 of 51 (permalink) Old 28th May 2018, 18:26
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Are there 2 people called James in this thread with cruise control that wasn't working?
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post #19 of 51 (permalink) Old 28th May 2018, 18:46
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Are there 2 people called James in this thread with cruise control that wasn't working?
No just me, I logged in using Facebook originally as I couldn't remember my Jamesaberdeen73 password.
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post #20 of 51 (permalink) Old 28th May 2018, 19:23
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I must have aRTFM as well as I've never heard of that one. I wish I could switch from ACC to CC. I find ACC is always sticking the brakes on instead of running a bit closer on the overrun.
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