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Louis-C

Member Since: 22 Jul 2022
Location: Essex
Posts: 22

Electrical Fault / EPIC System

So it's been 2 weeks since my 2024 Defender 110 P400e went into the dealership for the second time.

First Attempted Repair
The red warning of "Stop Safely – Electrical Fault Detected", Engine Management Light was red and so was the Battery light. The EV mode was not available and it felt very underpowered. I called JLR Assist who got it started and followed me to Southend Land Rover which was 5 minutes away.

The dealership said it was software, a week later I picked up the vehicle and it seemed ok. 2 days later, the lights cam back on and the same symptoms. JLR Assist back out who told me the wrong software updates had been made and it needed to go back in to Southend Land Rover.

Second Attempted Repair
It's been with them for nearly 2 weeks and they have said the cannot replicate the fault. They have driven it over 250 miles and emptied the charge and petrol tank. I mentioned this to them and they've said it will be filled before handing back.

They asked if one of their engineers could use it to commute to the dealership everyday which I replied no. Seems like an odd request to me. Just drive it during the day at the dealership.

They have said if they can't get it to fault again by the end of the week that they will give it back to me and wait till it happens again. I just can't understand their logic. Surely the fault codes are saved in the system for analysis at a later date?

The service rep mentioned it was to do with the EPIC system?

The vehicle is not even 12 months old yet and has 6,000 miles on the clock.

Has this happened to anyone else?

Click image to enlarge

27th Mar 2025 2:27pm

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 3028

My friend's Suzuki hybrid did exactly the same, and no fault was found. lt's not done it again but she's lost confidence in the vehicle.

28th Mar 2025 12:49am

Nuclear Nick

Member Since: 21 Aug 2021
Location: Southwest
Posts: 295

Today's cars are extremely complex pieces of machinery controlled by numerous electronic devices. It's not always a case of read fault codes, fix problem, fault goes away. And I'm afraid not all technicians these days are as well versed in fault finding as we'd like them to be.

I would let their tech commute in the vehicle, in addition to workshop testing. Why restrict them in trying to replicate and hopefully fix the problem? Intermittent faults are the hardest ones to rectify since if there's no fault present how can they fix it?

If you're not happy with the workshop's performance then escalate your concerns by emailing the Dealer Principal and copying it to LR customer services in the first instance. Set out your expectations making clear that following this second attempt at repair, if the fault returns, you will be rejecting the vehicle. Of course that's a hassle, and it could get messy so at this stage better to give them every opportunity to fix the problem. They should offer you a loan car in the meantime. 23.5MY 90 V8 Carpathian grey

28th Mar 2025 8:05am

stevemfr

Member Since: 18 Sep 2022
Location: Strasbpurg
Posts: 156

Absolutely agree with Nick - let the tech commute with the vehicle. The dealer is simply trying to replicate the conditions which lead to the fault. The more restrictions you place on the dealership the less likely it will be that the problem will occur - and the less likely it will be that you will be happy in the end. Aside from that (and I am assuming a responsible tech who's not going to joyride in the vehicle and take all his friends to the sleazy part of town to find hookers), what is the difference between miles put on during the day or on a commute? Miles are miles (I could understand if that was your objection) whereas a commute has conditions such as a cold start in the morning followed by a period of uninterrupted driving that usually cannot be replicated as easily during the day.

And as to fault codes: there is no "little man" under the bonnet waiting for something to go wrong and flag a fault. There isn't even AI watching over the vehicles performance. There are simply pre-programmed conditions that, when met, cause a fault code to be logged. That doesn't mean that if there are no faults the vehicle must be running perfectly. It simply means that none of the pre-programmed conditions for faults were met and you may have a problem that wasn't forseen in the factory.

RRC 2Dr, RRC 4Dr,
P38, and 2 L322s,
2 FL1s and a L663 on the way

28th Mar 2025 11:30am

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 3028

You can always use the app to monitor how and where the vehicle is driven while in the care of the dealership.

28th Mar 2025 8:36pm

Louis-C

Member Since: 22 Jul 2022
Location: Essex
Posts: 22

Thanks for the feedback gentlemen.

Just for some more context. My insurance company (Aviva) specific that the Defender is kept in a garage between the hours of 11pm and 5am IF the vehicle is parked within a 3 mile radius of my home address.

I did offer the dealership the option to drive the vehicle to and from work by a technician but they have confirmed that in the event that the vehicle was stolen, it would my insurance that would be used for the claim.

I'm picking the Defender up tomorrow and they have said it will now be a waiting game to see if it faults while back in my possession.

31st Mar 2025 1:47pm

Nuclear Nick

Member Since: 21 Aug 2021
Location: Southwest
Posts: 295

That's an interesting question re insurance cover when with the dealership for repair. I'd like to know what your insurer's view would be if the vehicle is stolen when with them. I've always assumed that the responsibility transfers to the dealers insurer in these circumstances. 23.5MY 90 V8 Carpathian grey

2nd Apr 2025 6:12am

mse

Member Since: 06 Apr 2008
Location: UK
Posts: 5082

2016 Defender 110 Puma 2.2 XS CSW Scotia Grey

I wouldnt accept a total loss claim on my policy for their mistake Mike

2nd Apr 2025 2:45pm

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