A8 transmission problems poll
Team Owner
Joined: Sep 2005
Posts: 29,113
Likes: 2,194
From: Big Bend Country, TX
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
Team Owner
Joined: Sep 2005
Posts: 29,113
Likes: 2,194
From: Big Bend Country, TX
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
Keep in mind, your '15 has 100k power train coverage. You might inquire about the re flash that has been mentioned in other threads before you put money into a transmission tune outside of that provided by GM. I've already had the misfortune of having to deal with that issue on a long gone C6 A6.
Melting Slicks
Joined: Dec 2014
Posts: 2,786
Likes: 2,332
From: Central UT
* '15 C7, 5k, no issues
* '15 Yukon Denali A8, occasional hard down shift from 2-1 that was fixed by a recall to replace an internal wiring harness. No biggie
Love the A8 in both vehicles. Wouldn't hesitate to get another. If our C7 barfs, it'll get fixed under warranty........
* '15 Yukon Denali A8, occasional hard down shift from 2-1 that was fixed by a recall to replace an internal wiring harness. No biggie
Love the A8 in both vehicles. Wouldn't hesitate to get another. If our C7 barfs, it'll get fixed under warranty........
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Melting Slicks
Joined: Oct 2009
Posts: 2,004
Likes: 392
From: Long Island New York
1500 miles, built 3/23/15.. Hard down shift once around 500 miles on it..over all it's been a great transmission.
I have read a few ppl saying they had the early A8, when did they update it or its software??
I have read a few ppl saying they had the early A8, when did they update it or its software??
Burning Brakes
Joined: Jul 2015
Posts: 920
Likes: 87
Keep in mind, your '15 has 100k power train coverage. You might inquire about the re flash that has been mentioned in other threads before you put money into a transmission tune outside of that provided by GM. I've already had the misfortune of having to deal with that issue on a long gone C6 A6.
GM feels the lowing of power train warranty should not affect sales ...
at least tht is their research and they are probably correct ..as i did not know of the change until i looked it up...
Safety Car
Joined: Sep 2001
Posts: 4,495
Likes: 1,263
From: Jacksonville FL
Gee, folks -- I'd like a real poll set up on this.
Proposed choices: (For A8 owners, obviously)
1. No issues.
2. Minor issues, now corrected
3. Major issues, resolution pending
4. Major issues, torque converter replaced
5. Major issues, transmission replaced
Other thoughts?
FWIW, I have an A8, about 9200 miles, built in Feb 15, initial hard downshift to first when slowing to a stop, and hard shift 1st to 2nd when cold, all self corrected with "self-learning" transmission, not reported to dealer. About 9200 miles. Fingers crossed.
Proposed choices: (For A8 owners, obviously)
1. No issues.
2. Minor issues, now corrected
3. Major issues, resolution pending
4. Major issues, torque converter replaced
5. Major issues, transmission replaced
Other thoughts?
FWIW, I have an A8, about 9200 miles, built in Feb 15, initial hard downshift to first when slowing to a stop, and hard shift 1st to 2nd when cold, all self corrected with "self-learning" transmission, not reported to dealer. About 9200 miles. Fingers crossed.
Number 4&5 are going to increase as the mileage increases.
Burning Brakes
Joined: Sep 2015
Posts: 861
Likes: 156
From: California
2017 C7 of Year Finalist
I'm starting to hear a slight whine which is not characteristic of this vehicle to my knowledge. Will have to hit up Chevy next week and let them know what's up. LoL
Melting Slicks
Joined: Oct 2009
Posts: 2,004
Likes: 392
From: Long Island New York
Racer
Joined: Oct 2014
Posts: 450
Likes: 122
From: Mount Airy MD
I'm sure there are folks on here far brighter than I that have experience / expertise in designing and posting up a poll.
Racer
Joined: Aug 2007
Posts: 354
Likes: 101
From: Louisville Ky
Gee, folks -- I'd like a real poll set up on this.
Proposed choices: (For A8 owners, obviously)
1. No issues.
2. Minor issues, now corrected
3. Major issues, resolution pending
4. Major issues, torque converter replaced
5. Major issues, transmission replaced
Other thoughts?
FWIW, I have an A8, about 9200 miles, built in Feb 15, initial hard downshift to first when slowing to a stop, and hard shift 1st to 2nd when cold, all self corrected with "self-learning" transmission, not reported to dealer. About 9200 miles. Fingers crossed.
Proposed choices: (For A8 owners, obviously)
1. No issues.
2. Minor issues, now corrected
3. Major issues, resolution pending
4. Major issues, torque converter replaced
5. Major issues, transmission replaced
Other thoughts?
FWIW, I have an A8, about 9200 miles, built in Feb 15, initial hard downshift to first when slowing to a stop, and hard shift 1st to 2nd when cold, all self corrected with "self-learning" transmission, not reported to dealer. About 9200 miles. Fingers crossed.