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251 Posts
Discussion Starter #1
We had many sudden ghost stops when Leaf sensors misinterpreted an obstacle while in moving traffic . Another thing was Collision warning ⚠ light coming on while in the settings showing as ON . Lastly , our first long drive after lockdown we turned on the pro pilot in the 50 mile an hour stretch of the motorway and car lost power , was rolling and slowing down and warning ⚠ came on about sensor not activated . Shouted at hubby to turn pro pilot off and then power came back Luckily, roads were mostly empty ... Finally today car is at Nissan garage and they just phoned to say no abnormalities detected during software tests and will take it to the motorway to see if fault appears . Could anyone care to help me out here as what’s likely to be happening?
131884
 

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Premium Member
2020 Corsa E
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7,418 Posts
Front radar probably. There was a recall/TSB on some of the Leaf 40s. I'd bet the dealer will have no idea about it.

I had mine chuck up a warning but I think it was the weather and someone hurling themselves around a roundabout right in front of the car. It had a warning for several minutes after, then it just cleared. It's not done anything untoward really since then.
 

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Discussion Starter #3
Front radar probably. There was a recall/TSB on some of the Leaf 40s. I'd bet the dealer will have no idea about it.

I had mine chuck up a warning but I think it was the weather and someone hurling themselves around a roundabout right in front of the car. It had a warning for several minutes after, then it just cleared. It's not done anything untoward really since then.
Thanks for that -will do some more research into front radar and recall.
 

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Discussion Starter #4
Just got phone call from Nissan saying that after test drive couldn’t find any faults and when I mentioned photo( above) got put on hold and after told , “ ok collect your car today , we will order new radar under warranty, will book you in when ready “ 🤷‍♀️🤷‍♀️
I find that fault has potential to cause an accident so quite concerning that been treated casually...
 

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197 Posts
My 40kWh N-Connecta Pro Pilot was recalled some time last year for that fault; I’d make sure that not only do they do whatever they think they need to do the the radar but they also do whatever the recall was.
 

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If the fault showed in a a road works section with temporary barriers and overprinted lane markings it was the system confused by the markings and barriers.

Nissan recalibrate radar if it’s set too high under warranty. It takes about two hours. That can reduce ghosting but it can still occur in rain or low sunlight so driver must be alert.
Pro pilot in motorway roadworks with narrow lanes shouldn’t be used unless you have very quick reactions. If it reads the old lane markings and the temporary ones it either brakes or follows old lane marking if they are more legible than temp marks.

Please be extra cautious for everyone’s safety. Junction 14 on M6 south is the one both my leafs can’t cope with so use human pilot.
 

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NISSAN LEAF 62Kwh
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I will reiterate that advice, if you are going through road works, do not use the auto steer function, it will pick up on old markings and cannot cope with narrow lanes. I learned this early days when it picked up on burnt out road markings and tried to take me through a concrete barrier.

I usually use the auto pilot through 50mph restricted road works as it works as a smart cruise control, but not the auto steer function.
 
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