I am a new XD owner. I've owned two Frontiers before my diesel XD. I bought the truck 1.5 months ago and the transmission hasn't been right since I bought it.
The truck was an owner demo - the owner of the dealership drove it for the first 4,500 miles. I test drove a different XD and then they offered this demo XD at a great price. I remarked during that test drive of the demo truck that the transmission shifted hard (much different than the other XD I test drove), but of course I expected them to make it right (my dealership has always been very good to me).
I took the truck in for a regen issue and the hard shifting issue 800 miles ago. They "flashed" the transmission and the shifting actually got worse. The shifts from 1-2, 2-3, 3-4 are "okay" but 4-5 is very hard and the whole truck shakes or "thunks." I took the mechanic out to show him and he could feel what I was describing.
I went to pick up the truck yesterday and the mechanic gave me the following explanation. He spoke with the Nissan tech line and they said it could take up to 1500 miles after a flash for the transmission to reprogram itself. It gets better. I am supposed to drive at "highway" speeds (though those speeds were not actually spelled out. 60? 65? 80?) to warm up the transmission. At a certain temperature (175??) the transmission will enter learn mode. From what the mechanic could understand from the tech line, the transmission will exit the learn mode if it cools down (hence the possible 1500 miles to learn??).
Here is where it just doesn't pass the smell test with me. How is a transmission supposed to "learn" shift points if you're driving 70 down the highway? My problem is mostly between 4-5. Am I supposed to back up highway traffic while I make the transmission shift between all the gears? Also, I drive about 30 miles in one direction twice a day. 20 miles of that drive is at 60 and then 70 mph. Then there is some "in town" driving for the last 10 miles. I've been doing that since I've owned the truck and definitely since they flashed the transmission. Wouldn't you think the transmission has "learned" enough??
This is very, very frustrating for me. I have an extremely busy schedule with long hours and it is difficult to drop the truck off at the dealership. They are good enough to give me a rental. I have no reason to believe the diesel mechanic is trying to BS me. He said as soon as I hit 1500 miles post flash, bring it back and he will call the tech line again. Until then he says Nissan won't do anything else to help him.
Has anyone else had similar issues? I love the truck, the trim line, and so forth, but I'm starting to regret my purchase.
Mark
The truck was an owner demo - the owner of the dealership drove it for the first 4,500 miles. I test drove a different XD and then they offered this demo XD at a great price. I remarked during that test drive of the demo truck that the transmission shifted hard (much different than the other XD I test drove), but of course I expected them to make it right (my dealership has always been very good to me).
I took the truck in for a regen issue and the hard shifting issue 800 miles ago. They "flashed" the transmission and the shifting actually got worse. The shifts from 1-2, 2-3, 3-4 are "okay" but 4-5 is very hard and the whole truck shakes or "thunks." I took the mechanic out to show him and he could feel what I was describing.
I went to pick up the truck yesterday and the mechanic gave me the following explanation. He spoke with the Nissan tech line and they said it could take up to 1500 miles after a flash for the transmission to reprogram itself. It gets better. I am supposed to drive at "highway" speeds (though those speeds were not actually spelled out. 60? 65? 80?) to warm up the transmission. At a certain temperature (175??) the transmission will enter learn mode. From what the mechanic could understand from the tech line, the transmission will exit the learn mode if it cools down (hence the possible 1500 miles to learn??).
Here is where it just doesn't pass the smell test with me. How is a transmission supposed to "learn" shift points if you're driving 70 down the highway? My problem is mostly between 4-5. Am I supposed to back up highway traffic while I make the transmission shift between all the gears? Also, I drive about 30 miles in one direction twice a day. 20 miles of that drive is at 60 and then 70 mph. Then there is some "in town" driving for the last 10 miles. I've been doing that since I've owned the truck and definitely since they flashed the transmission. Wouldn't you think the transmission has "learned" enough??
This is very, very frustrating for me. I have an extremely busy schedule with long hours and it is difficult to drop the truck off at the dealership. They are good enough to give me a rental. I have no reason to believe the diesel mechanic is trying to BS me. He said as soon as I hit 1500 miles post flash, bring it back and he will call the tech line again. Until then he says Nissan won't do anything else to help him.
Has anyone else had similar issues? I love the truck, the trim line, and so forth, but I'm starting to regret my purchase.
Mark