My experience has been somewhat of a nightmare. Mostly on the quality side. I bought it in July of 2019 with 9600 miles and now it has 32000 miles. I havent had many problems with the engine itself but the jury is still out. Below is a list of parts that have been replaced on my 2017 2500HD LTZ and the symptoms.
Power steering pump - making grinding noise while turning normal (i.e. it still makes noise when locked left or right, pretty normal for all pumps). Took the dealer two visits and me driving with the tech to diagnose.
Fan clutch - AC would not work when outside temp over 100 DEGF, no engine overheating. Took the dealer 3 visits to figure it out and of course it was out of warranty when they found the problem.
Water pump - After having the engine block heater recall done I would get the low coolant notification about once a week. Top it off and a week later it would come back. Dealer said they saw the weep hole dripping under pressure.
They replaced the water pump and a week later the low coolant notification is back. Probably a bubble in the system somewhere but they cant get the fill procedure correct I guess.
All front diff bearings replaced - When 4H was engaged there was a loud whirring noise. Dealer replaced all the front diff bearings. On the test drive after replacing they heard something in the transfer case.
Transfer case chain, drive and driven gears replaced - After replacing the diff bearings they heard something in the transfer case. They opened it up and found the chain was loose. They replaced the chain and gears.
Oil pan replaced - oil was weeping from the front of the pan. After the third visit they found the leak. They replaced the oil pan and resealed
Drivers side mirror replaced - The chrome cover and body were not matching up leaving a large gap.
Plastic strips between the cab and the bed peeling off - the first dealer wouldnt replace despite being in warranty. The second dealer replaced and 5 months later they were pealing again. I finally asked the dealer to just remove them.
The only thing I have had to pay for is the fan clutch which i only paid 40%. I have been fighting with GM corporate for 6 months now about the quality of the truck and the fact that in the last year and a quarter they truck has been in the shop a total of 70 days. This doesnt include the low coolant notification coming on three days ago. That will add another 3-7 days most likely. It blows my mind that GM cannot recognize that a power steering pump or a fan clutch, for example, should last longer than 25K. They keep saying "sir, it was fixed under warranty" or "you only paid 40% of the cost", like they did me a favor. The truth is those components should last at the very least 80K. I realize it is all about money, I get it, but when you pay $60K for a truck that is touted as "heavy duty" you should expect those components to last quite a bit longer.
This is just my experience and reading about everyone's positive experiences gives me hope that things will start looking up for my 2500.
My experience has been somewhat of a nightmare. Mostly on the quality side. I bought it in July of 2019 with 9600 miles and now it has 32000 miles. I havent had many problems with the engine itself but the jury is still out. Below is a list of parts that have been replaced on my 2017 2500HD LTZ and the symptoms. Power steering pump - making grinding noise while turning normal (i.e. it still makes noise when locked left or right, pretty normal for all pumps). Took the dealer two visits and me driving with the tech to diagnose. Fan clutch - AC would not work when outside temp over 100 DEGF, no engine overheating. Took the dealer 3 visits to figure it out and of course it was out of warranty when they found the problem. Water pump - After having the engine block heater recall done I would get the low coolant notification about once a week. Top it off and a week later it would come back. Dealer said they saw the weep hole dripping under pressure. They replaced the water pump and a week later the low coolant notification is back. Probably a bubble in the system somewhere but they cant get the fill procedure correct I guess. All front diff bearings replaced - When 4H was engaged there was a loud whirring noise. Dealer replaced all the front diff bearings. On the test drive after replacing they heard something in the transfer case. Transfer case chain, drive and driven gears replaced - After replacing the diff bearings they heard something in the transfer case. They opened it up and found the chain was loose. They replaced the chain and gears. Oil pan replaced - oil was weeping from the front of the pan. After the third visit they found the leak. They replaced the oil pan and resealed Drivers side mirror replaced - The chrome cover and body were not matching up leaving a large gap. Plastic strips between the cab and the bed peeling off - the first dealer wouldnt replace despite being in warranty. The second dealer replaced and 5 months later they were pealing again. I finally asked the dealer to just remove them. The only thing I have had to pay for is the fan clutch which i only paid 40%. I have been fighting with GM corporate for 6 months now about the quality of the truck and the fact that in the last year and a quarter they truck has been in the shop a total of 70 days. This doesnt include the low coolant notification coming on three days ago. That will add another 3-7 days most likely. It blows my mind that GM cannot recognize that a power steering pump or a fan clutch, for example, should last longer than 25K. They keep saying "sir, it was fixed under warranty" or "you only paid 40% of the cost", like they did me a favor. The truth is those components should last at the very least 80K. I realize it is all about money, I get it, but when you pay $60K for a truck that is touted as "heavy duty" you should expect those components to last quite a bit longer. This is just my experience and reading about everyone's positive experiences gives me hope that things will start looking up for my 2500.