Replacing our 2017 Yukon Denali transmission! Please help!

[Dance Mom]

Hi all,

Please help! I was having issues with the gears getting stuck and a couple of times have had to pull off to the side of the road and restart the car bc it would not get out of 1st gear! We are past our 3 year factory warranty and our dealership is telling me I have to replace a part in our transmission for $2000 with no warranty or replace the whole transmission for $4300 with a 3 year warranty. This is the first GMC I've owned and am floored that I am replacing the transmission for a 3 year old car! Is this normal? Please help! Would getting in touch with GMC customer service be a good start?

Thank you for any help,

Dance Mom

 

[swathdiver]

Hi all,

Please help! I was having issues with the gears getting stuck and a couple of times have had to pull off to the side of the road and restart the car bc it would not get out of 1st gear! We are past our 3 year factory warranty and our dealership is telling me I have to replace a part in our transmission for $2000 with no warranty or replace the whole transmission for $4300 with a 3 year warranty. This is the first GMC I've owned and am floored that I am replacing the transmission for a 3 year old car! Is this normal? Please help! Would getting in touch with GMC customer service be a good start?

Thank you for any help,

Dance Mom

Yes, I would get them involved and also maybe get a second opinion. There will be internal codes, did the dealership tell you what they were? Did they mention the "valve body" or TEHCM?

How many miles are on your Denali and have you ever had the transmission serviced or the fluid changed? If so, when and by whom?

 

[Bob2C]

Hi all,

Please help! I was having issues with the gears getting stuck and a couple of times have had to pull off to the side of the road and restart the car bc it would not get out of 1st gear! We are past our 3 year factory warranty and our dealership is telling me I have to replace a part in our transmission for $2000 with no warranty or replace the whole transmission for $4300 with a 3 year warranty. This is the first GMC I've owned and am floored that I am replacing the transmission for a 3 year old car! Is this normal? Please help! Would getting in touch with GMC customer service be a good start?

Thank you for any help,

Dance Mom[/

This should be covered under your power train warranty which extends past 3 years unless your over 60k miles.


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[avalonandl]

If you have the 8 speed transmission google the issues they have. There may be a TSB that addresses the issues.

 

[RST Dana]

I thought factory power train was longer than 3 years.

 

[hcvone]

How many miles do you have?

 

[sealandsky]

There is a class action suit against GM for the 8-speed. You may want to investigate this.

 

[RossM]

GM put the wrong fluid in them. Had mine flushed out three times from dealer to get rid of shutter and possible future problems, also torque converters failed. This is our 4 th GM suv and first corvette and Im not buying another GM product, issues with all. Kept the denali for now. Wife went to lexus.

 

[James Ward]

GM put the wrong fluid in them. Had mine flushed out three times from dealer to get rid of shutter and possible future problems, also torque converters failed. This is our 4 th GM suv and first corvette and Im not buying another GM product, issues with all. Kept the denali for now. Wife went to lexus.

Well I'd love to say this was a one time situation, But it's not. I have to assume that the money that is spent for a GM product isn't met with a company that would stand behind their products. Very sad. I haven't bought anything in the last 30 years but General Motors vehicles. I wish I could say I have confidence for future purchases.

 

[Jeramia]

I thought the power train was covered for 5 years or 100,000 miles.