GM Waiting to Fix Transmission on my 1 Day old AT4

jagabom (Esquire) · December 14, 2019

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Edited December 14, 2019 by jagabom

jagabom (Esquire) · December 14, 2019

On 10/28/2018 at 8:15 PM, Jimbo20 said:

I waited several extra months for the AT4's release to purchase my truck. Less than 1 day of light driving and 70 miles into my new truck the transmission started to slip in and out of gear. I pulled into a parking lot and when I shifted into revers the truck slowly rolled forward. Onstar had a flat bed tow truck there within an hour to bring the day old truck back to the dealer. The dealer can not start work on the truck until GM approves the new transmission. I am told that there is a lot of extra paperwork and approval because there are so few miles and it is a new truck. I would think that GM would want to maintain their customer loyalty and support their new designs before aggravating buyers of new trucks. I have been a lifelong GM buyer, but thinking that i should have gone with a Ford or Ram. Has anyone else had to wait for repairs on a brand new vehicle?

Ever get the problem fixed.

Jim

ses3553 · December 30, 2019

I have a brand new 2019 High Country with repeated check engine light and what I suspect to be a transmission issue. At light acceleration there is a deep rumble/vibration that gets progressively louder the longer you drive. Seems to be in the 12-1500 rpm range at varying speeds. If you accelerate or release throttle all together it goes away. Service tech went for a ride with me and said it maybe the planetary gears. I said ok but it still doesn’t sound normal. Truck is month old and currently in the shop for the 4th time. This is after trading in my 2017 Denali that saw the shop 18 times in 2 years. It was so bad GM gave me an incentive to buy the next one - which is turning out to be a big POS too.

Pinnacle · January 5, 2020

there were design changes made to the 8L90 between the 2017's and the 2019's. I have read some of the documentation on those changes myself.

can you post some links

benelli · January 6, 2020

On 12/5/2019 at 2:49 PM, RaisedByWolves said:

I think he twisted it into a bowl for the pot needles hes smoking.

with a tag name like that no wonder I feel sorry for you. pot needles? maybe in the trailer park you live in.

Edited January 6, 2020 by benelli

RaisedByWolves · January 6, 2020

15 hours ago, benelli said:

with a tag name like that no wonder I feel sorry for you. pot needles? maybe in the trailer park you live in.

Is this supposed to be an insult?

Looks like you were eating alphabet soup with your mouth open, and whatever letters hit the keyboard were posted.

How do I know it was alphabet soup?

Cause neither alphabet soup nor your post has any punctuation.

benelli · January 6, 2020

1 hour ago, RaisedByWolves said:

Is this supposed to be an insult?

Looks like you were eating alphabet soup with your mouth open, and whatever letters hit the keyboard were posted.

How do I know it was alphabet soup?

Cause neither alphabet soup nor your post has any punctuation.

What do you think . Your the proclaimed professor of ignorance.

RaisedByWolves · January 7, 2020

20 hours ago, benelli said:

What do you think . Your the proclaimed professor of ignorance.

Hey look, capital letters and punctuation!

I taught the monkey a new trick!

You get a gold star for the day.

benelli · January 7, 2020

1 hour ago, RaisedByWolves said:

Hey look, capital letters and punctuation!

I taught the monkey a new trick!

You get a gold star for the day.

Thanks for the gold star. But I think it would look better on your trailer door.

19gmcsierraat4 · February 11, 2020

On 10/28/2018 at 7:15 PM, Jimbo20 said:

I waited several extra months for the AT4's release to purchase my truck. Less than 1 day of light driving and 70 miles into my new truck the transmission started to slip in and out of gear. I pulled into a parking lot and when I shifted into revers the truck slowly rolled forward. Onstar had a flat bed tow truck there within an hour to bring the day old truck back to the dealer. The dealer can not start work on the truck until GM approves the new transmission. I am told that there is a lot of extra paperwork and approval because there are so few miles and it is a new truck. I would think that GM would want to maintain their customer loyalty and support their new designs before aggravating buyers of new trucks. I have been a lifelong GM buyer, but thinking that i should have gone with a Ford or Ram. Has anyone else had to wait for repairs on a brand new vehicle?

My 2019 AT4 is at the dealership waiting for a new transmission. Mine only has a leak that they can't fix. Did you get your truck back? any issues? if so how long did it take? I know that the GM strike caused a delay on parts. I had to wait about a month to get the seals when they tried to fix the leak the first time.

KGP AT4_2019 · February 20, 2020

WOW I DAY old.

I have 9800 miles on MY AT4 delivered 5 19 2019 and I am now waiting 2 weeks on a new Transmission.

What is going on at GM??

I had 2 Chev. Tahoes each with 180K and never a concern.

How long did it take for the repair and how is it running now?

Vicarod · February 20, 2020

45 minutes ago, KGP AT4_2019 said:

WOW I DAY old.

I have 9800 miles on MY AT4 delivered 5 19 2019 and I am now waiting 2 weeks on a new Transmission.

What is going on at GM??

I had 2 Chev. Tahoes each with 180K and never a concern.

How long did it take for the repair and how is it running now?

Doubt you will get an answer.

Guy made two posts and hasn't been back since Nov. of 2018.

Sorry to hear about your truck.

What transmission is in it and what happened?

KGP AT4_2019 · February 20, 2020

I have the 6.3Ltr and Allison 10 Speed.

was making a wining turbo sound and than jerked and jumped when put in reverse than would not leave 1st or 2ed gear got home, 1 mile away at 5mph with 2k RMP.

dealer says we are waiting on GM for a replacement 2 weeks now no word?

wacnstac · February 21, 2020

On 2/11/2020 at 2:51 AM, 19gmcsierraat4 said:

My 2019 AT4 is at the dealership waiting for a new transmission. Mine only has a leak that they can't fix. Did you get your truck back? any issues? if so how long did it take? I know that the GM strike caused a delay on parts. I had to wait about a month to get the seals when they tried to fix the leak the first time.

Which transmission do you have?

benelli · February 21, 2020

12 hours ago, wacnstac said:

Which transmission do you have?

Probably the 8 speed. My had new fluid flush with that new Mobile 1 crap . It made it worse. When you call the service department and complain that same issue is there . They say “strange we dont get many in with transmission problems” lol lol . I think Gm has a special course they send there service reps too instruct them how to blow smoke up peoples a**.

Edited February 21, 2020 by benelli