Well, this sucks. Sitting in Chattanooga traffic for a couple hours. Dashboard lights up, “Transmission Overheating”. About 30 seconds later, the Defender automatically puts itself in park, right in the middle of a 4 way intersection on a major road, and decides it’s done moving. The Defender blocks traffic in the middle of the road for the next 30 minutes before it can limp to a nearby parking lot to be towed.

 

Wow okay.

Surely the transmission didn't actually overheat unless you're in the Simpson Desert at midday. Or you were driving on the highway in low range!

And even then it should have coped. Also surprised it just stopped and wouldn't let you move. That's actually dangerous.

What was the ambient temperature. And did it run okay once cooled down. Maybe it lost fluid from the gearbox.

Please update when you find out what the problem was with it.

 

Crazy, right? Wife and 2 kids (no cargo) in the vehicle just sitting in heavy traffic after an accident further up the highway. Basically, just sitting there waiting for them to clear up a wreck a few miles ahead. Maybe 80F. No low range or similar foolishness. It’s a 2023 with 22,000 miles and we’ve had it in for oil changes 3 times. It’s been maintained and treated well.

As we were inching ahead, the error appeared on the dash, and a few moments later it automatically put itself in park. We were completely obstructing the road, and I was unable to put it in gear to pull it off to the shoulder. I shut it down, locked the doors, waited a few minutes, restarted….no dice. It bricked itself and had to be hauled away on a flat bed. I had it taken to Land Rover and it’s still there. We picked up a rental car for the remainder of our trip.

Maybe I’ve been lucky, but the Defender is the only vehicle in 44 years that’s ever left us stranded on the side of the road. 100+ miles away from home of course. We sold our 240,000 mile Land Cruiser that’s had zero problems because we take long trips and, with the high mileage, didn’t want to risk any major breakdowns away from home. Joke is on us…

 

That is crazy! Glad you are all safe though. Let us know what the dealer finds. That is scary that it bricked itself.

 

The transmission was not likely over heating, rather, the engine could be. What engine do you have?

 

transmission can be overheating, in fact I saw one case online where due to excessive off-roading in mud there was not enough air flow between transmission pan and skid plate and it killed transmisiion.

 

Sorry to hear you are dealing with this nightmare. Could be a defective transmission from ZF or something as simple as a faulty transmission temperature sensor. Or maybe not enough transmission fluid installed. I bet you get a new transmission regardless of the cause. This ZF transmission is used in so many vehicles and is extremely reliable.

 

OP, I saw your reddit post on the defender sub. As expected, this is catnip for Land Rover trolls.

 

Just sharing my experience. They’ve had the truck in the service bay for 2 days and they haven’t been able to identify the problem yet.

I put a deposit down on a Lexus GX550 Overtrail Plus today. It comes with 18” wheels, 33” AT tires, flat cargo floor, and accessible recovery points. No need to replace brake calipers or add a $1,200 skid plate to access the front recovery point.

We actually spend time outdoors and want to use the Defender off-road. I want to like this vehicle and have some adventures with it, but who is really the target market when it’s only sold with 20-22” wheels and requires aftermarket mods? The wheels on the Defender are bigger than what I have on my Porsche 911. Toyota seems to have a better executed product for people who actually want to do what Land Rover advertises.

Fun Fact: At Destination Defender the manufacturer owned off-road demo vehicles were running 275/65R20 (34”) tires. As a customer you can’t spec that vehicle, and it’s not possible to fit that tire without warranty voiding aftermarket mods. A bait and switch most people won’t notice, and something Toyota/Lexus would find unnecessary because they’re already built for purpose.

 

Tear down reviews on Toyotas 3.4 engine are not favorable, it will be stressed. Oil pick up is questionable, oil pump is undersized, thermals are questionable too.