2023 LAND ROVER DEFENDER Power Train Problems

While driving on the freeway I recieved and elctrical fault detected please pull over when safe. The issue is the DC to DC converter failed resultign in the loss of charging for the car and relaince on stored elctricity in the battery to drive systems. I was on the highway at freeway speeds and had to exit the highway quickly to avoid the vehicle completly shutting down on the freeway. The dealer has verified the issue. There is significant discussion on owner boards about the numerous failures across all years of the mhev defender resulting in owners being stranded on the side of the road. Land Rover needs to issue a recall to replace this defective part.

The DC to DC converter Failed. It is part of the mild hybrid system. Multiple cars in my state and globally have reported the same failure around the same time. Supposedly these failures are due to the cold weather. At the 1st start up of the day a warning message displayed "Stop safely Electrical fault detected" the it disappeared after 1minute. After the 2nd start up the message reappeared and stayed on. I drove straight to the dealership where the vehicle would not be able to start or move again. My safety and others would have been at risk if the vehicle would have been immobile on the road. The vehicle has since had the DC to DC converter replaced as well as the battery which suffered power drain. These repairs were done by the manufacturer/dealership under warranty. The DC to DC converter was on back order for months due...

On several occasions my car has shifted from Drive into Neutral while I was at a light and the vehicle had shut itself off as part of the Intelligent Start Stop feature. I see that this same issue has been happening to several other Owners who have reported this to the NHTSA. Ironically it seems as though all these vehicles were purchased in Houston TX.

Stopped on an uphill grade, start stop on vehicle activated, engine stopped. Upon brake release, engine started, vehicle made uncommanded shift from drive to neutral, rolled backward several feet before brake could be reapplied. Land Rover has been aware of the uncommanded shift to neutral issue for sometime. Local dealer has a bulletin on this issue, but Land Rover has no fix, instead advising to manually disengage auto start stop every time vehicle is driven. Unfortunately, sometimes I forget to do this. It’s a problem.

Vehicle makes uncommanded shifts from drive into neutral when the engine restarts after stopping during an auto start-stop cycle. Driver has to manually re-engage drive after this happens.