2017 GMC Sierra Denali-Help Needed Please

isalas · June 17, 2019

Hello all,

I have a 2017 Sierra Denali w Ultimate Package that I purchased new from GMC dealership in Galveston, TX. After about 28,000 miles a piece of plastic piping came out of the front driver seat lower cover. I took it in for warranty replacement and they replaced the entire cushion and seat cover.

The issue I'm having is the seat cover that they replaced the old one with is OBVIOUSLY not the same grade of leather as originally came in my Denali. As a matter of fact, where my original seat cover had leather on all lower sides, the new replacement even has cloth on the side that faces the console.

Can someone help me to identify the proper part number replacement for this cover so I can let the dealership know? They said that they got the part from my VIN number but there is no way that this is the same quality leather that was originally installed. The original leather was much tighter...you can look at the seat back against the lower replacement and it is obvious there is a difference in the leather type that was used.

I would appreciate any guidance anyone here can give or even if a GM specialist could chime in, any assistance would be appreciated.

Thanks.

camcamaro1991 · June 17, 2019

As much as it sucks, warranty replaced the leather, since the foam is used the leather will loose. BTW they wont replace the foam unless it was damaged etc... they only way to get around this is to get new foam, which as much as you hate it would be out of your pocket, I would tell customers when I worked on cars, your leather will fit loose if we dont replace the foam. Also leather will shrink/tighten a little over time, but not as much as you would hope.

but yes the Denali's get different leather over the SLT's my 2016 has leather on both sides, the dealer should order another leather to compare, I doubt GM changed to fabric on the inside unless it was to reduce noise from seat movement, anything is possible.

Edited June 17, 2019 by camcamaro1991

isalas · June 17, 2019

7 minutes ago, camcamaro1991 said:

As much as it sucks, warranty replaced the leather, since the foam is used the leather will loose. BTW they wont replace the foam unless it was damaged etc... they only way to get around this is to get new foam, which as much as you hate it would be out of your pocket, I would tell customers when I worked on cars, your leather will fit loose if we dont replace the foam. Also leather will shrink/tighten a little over time, but not as much as you would hope.

but yes the Denali's get different leather over the SLT's my 2016 has leather on both sides, the dealer should order another leather to compare, I doubt GM changed to fabric on the inside unless it was to reduce noise from seat movement, anything is possible.

Thank you for this reply.

On the order sheet, they did replace the cushion as well. So I was lucky in that regard.

Do you know where I can do or how I can confirm whether or not a different type of leather was used? I wish I could find the ACTUAL part replacement number that came with my truck. I read a lot about "Nuance Leather" that came with the 2017 Denali Trucks and it was in their original brochure as well.

Thank you!

JimCost2014 · June 18, 2019

On ‎6‎/‎17‎/‎2019 at 11:36 AM, isalas said:

Hello all,

I have a 2017 Sierra Denali w Ultimate Package that I purchased new from GMC dealership in Galveston, TX. After about 28,000 miles a piece of plastic piping came out of the front driver seat lower cover. I took it in for warranty replacement and they replaced the entire cushion and seat cover.

The issue I'm having is the seat cover that they replaced the old one with is OBVIOUSLY not the same grade of leather as originally came in my Denali. As a matter of fact, where my original seat cover had leather on all lower sides, the new replacement even has cloth on the side that faces the console.

Can someone help me to identify the proper part number replacement for this cover so I can let the dealership know? They said that they got the part from my VIN number but there is no way that this is the same quality leather that was originally installed. The original leather was much tighter...you can look at the seat back against the lower replacement and it is obvious there is a difference in the leather type that was used.

I would appreciate any guidance anyone here can give or even if a GM specialist could chime in, any assistance would be appreciated.

Thanks.

Your new seat is the same type of leather (cloth on the side) as my 18 LTZ.

Only difference I see is the different stitching that the Denali comes with.

Wonder if it is like that across the board for all trim levels now?

JimCost2014 · June 19, 2019

On 6/17/2019 at 11:36 AM, isalas said:

Hello all,

I have a 2017 Sierra Denali w Ultimate Package that I purchased new from GMC dealership in Galveston, TX. After about 28,000 miles a piece of plastic piping came out of the front driver seat lower cover. I took it in for warranty replacement and they replaced the entire cushion and seat cover.

The issue I'm having is the seat cover that they replaced the old one with is OBVIOUSLY not the same grade of leather as originally came in my Denali. As a matter of fact, where my original seat cover had leather on all lower sides, the new replacement even has cloth on the side that faces the console.

Can someone help me to identify the proper part number replacement for this cover so I can let the dealership know? They said that they got the part from my VIN number but there is no way that this is the same quality leather that was originally installed. The original leather was much tighter...you can look at the seat back against the lower replacement and it is obvious there is a difference in the leather type that was used.

I would appreciate any guidance anyone here can give or even if a GM specialist could chime in, any assistance would be appreciated.

Thanks.

Our 16 Tahoe LTZ has the leather on the side rather than the cloth like my truck.

Bet that your new cover is the 18 version, wonder if they would swap the passenger side to make it match.

isalas · June 20, 2019

On ‎6‎/‎19‎/‎2019 at 12:06 AM, JimCost2014 said:

Our 16 Tahoe LTZ has the leather on the side rather than the cloth like my truck.

Bet that your new cover is the 18 version, wonder if they would swap the passenger side to make it match.

They have a few of my truck on the lot but 2018 models (Sierra Denali Ultimate Package). I will check one of those to verify whether or not it has cloth on the side. Thank you for the response.

JimCost2014 · June 20, 2019

1 hour ago, isalas said:

They have a few of my truck on the lot but 2018 models (Sierra Denali Ultimate Package). I will check one of those to verify whether or not it has cloth on the side. Thank you for the response.

You are very welcome.

Report back what you find, kind of curious now on the grades of leather.

isalas · June 21, 2019

On ‎6‎/‎20‎/‎2019 at 12:39 PM, JimCost2014 said:

You are very welcome.

Report back what you find, kind of curious now on the grades of leather.

Received a call from my service consultant yesterday. He states that they went as far as to contact GM directly regarding the replacement and how they cannot find a replacement part with leather on all sides. GM told him that they now only offer that style as there were too many complaints about a noise made from the leather rubbing against the center console (?).

Options given were to have them leave the replacement and they would order another for the passenger side to make them match or they would try and reinsert the plastic piping that fell out of my old cover. I opted for them to replace the piping and put my old cover back on the truck. I called today to get an update, he said that the cushion they replaced has 1 time use clips that break when you remove the cushion to fit the cover around it, so they now will be ordering another cushion to put my old cover back around.

I have included a photo of what I mean by the "piping". There is a rigid piece of plastic in this spot that actually fell out of the rear of the seat (somehow worked it's way out).

I truly believe there is a difference in the grades of leather that are used in the Denali's vs. the SLT and other models. The only way I can explain it is, Denali leather feels "tighter" and more like a sportscar seat. Not soft and pillow like, like what they tried to replace it with.

JimCost2014 · June 21, 2019

4 hours ago, isalas said:

Received a call from my service consultant yesterday. He states that they went as far as to contact GM directly regarding the replacement and how they cannot find a replacement part with leather on all sides. GM told him that they now only offer that style as there were too many complaints about a noise made from the leather rubbing against the center console (?).

Options given were to have them leave the replacement and they would order another for the passenger side to make them match or they would try and reinsert the plastic piping that fell out of my old cover. I opted for them to replace the piping and put my old cover back on the truck. I called today to get an update, he said that the cushion they replaced has 1 time use clips that break when you remove the cushion to fit the cover around it, so they now will be ordering another cushion to put my old cover back around.

I have included a photo of what I mean by the "piping". There is a rigid piece of plastic in this spot that actually fell out of the rear of the seat (somehow worked it's way out).

I truly believe there is a difference in the grades of leather that are used in the Denali's vs. the SLT and other models. The only way I can explain it is, Denali leather feels "tighter" and more like a sportscar seat. Not soft and pillow like, like what they tried to replace it with.

Yea, I know what you mean.

My 16 felt very snug, 18 almost feels at times like the seat cover is sliding around.

I know that it is not the seat frame, went through that with my 14 feeling like I had a rocking chair for the drivers seat.

ksiesel · June 22, 2019

I looked at my ‘18 Denali and it has cloth on both seats facing the center console. I’m one that really hates squeaks and rattles so I’m happy to not have leather in that contact area.

isalas · June 22, 2019

2 hours ago, ksiesel said:

I looked at my ‘18 Denali and it has cloth on both seats facing the center console. I’m one that really hates squeaks and rattles so I’m happy to not have leather in that contact area.

Thank you for that reply. I haven't had an opportunity to check the 18's on the lot at the dealership.

That makes me feel better. At least I know that they did their homework.

isalas · June 22, 2019

17 hours ago, JimCost2014 said:

Yea, I know what you mean.

My 16 felt very snug, 18 almost feels at times like the seat cover is sliding around.

I know that it is not the seat frame, went through that with my 14 feeling like I had a rocking chair for the drivers seat.

Appreciate the input. Hopefully they'll be done with my baby this weekend.

They gave me a "custom" model 2019 Chevy Crew Cab with 5 miles on it as a loaner. What a piece of garbage! Clunky, no power, weak amenities. The ONLY thing I like more about it is the Driver Information Center, they got that right.

lapoolboy · June 22, 2019

4 hours ago, isalas said:

Appreciate the input. Hopefully they'll be done with my baby this weekend.

They gave me a "custom" model 2019 Chevy Crew Cab with 5 miles on it as a loaner. What a piece of garbage! Clunky, no power, weak amenities. The ONLY thing I like more about it is the Driver Information Center, they got that right.

Yea, I was "treated" to a 2019 loaner myself when my 2017's wiring harness was being fixed. That thing removed all consideration I thought I had of trading my truck in on one. The interior design and construction went 5 years backwards.

isalas · June 24, 2019

On ‎6‎/‎22‎/‎2019 at 2:53 PM, lapoolboy said:

Yea, I was "treated" to a 2019 loaner myself when my 2017's wiring harness was being fixed. That thing removed all consideration I thought I had of trading my truck in on one. The interior design and construction went 5 years backwards.

Yep. Horrible.

isalas · July 4, 2019

Just an update: Finally got my truck back yesterday. They used the old cover and threaded the piece of piping that fell out back into it. I wound up with a new cushion and a new “cooler” for my seat. He mentioned that the old cooler has some sort of bag that was torn during assembly/disassembly which they replaced. Basically it was causing cold air to not come up through the bottom of the seat.

So all seems to be well. It just took much longer than I was expecting.