2021 Yukon Denali - Service Safety Restraint System

[Adplusone]

 

On 10/20/2020 at 7:30 AM, SILVER SLED said:

#PIT5759F: Service Safety Restraints System With DTC B14DC SYM 1B and/or 13 - (Oct 19, 2020)

Subject:

Service Safety Restraints System With DTC B14DC SYM 1B and/or 13

 

#PIT5759A - Service Safety Restraints System With DTC B14DC SYM 1B and_or 13.pdf

[Adplusone]

Let's try this again....it is Monday.  Here is more info to take to your dealer.  The RPO (AYQ) are the standard airbags.

[SILVER SLED]

PIT5759A is outdated, it has been modified, 9 times and counting and is now on version PIT5759H

 

Version

9

Modified

07/23/2020 - Created on. 07/29/2020 - Updated correction sections to add note and torque spec 08/03/2020 - Updated to add the taping information in the Correction and edit labor op description and time. 08/18/2020 - Updated the taping procedure in the correction. 09/11/2020 - Updated the Model list, Correction and admin details 09/30/2020 - Updated the Cause, Correction, Parts and Warranty section 10/19/2020 - Updated the Models and Warranty sections. 10/22/2020 - Updated the Correction Sections 10/27/2020 - Updated the Correction, Parts and Warranty Sections to remove the WPC p/n and add the CCA parts information.

Edited November 16, 2020 by SILVER SLED

[David Milem]

Same issue here.  I had may brand new chevy trail boss 2 weeks when the issue began.  I lease this truck and drove 180 miles round trip to have the dealer look at the issue and no change, it actually got worse after picking it up.    Took it back again a week ago on 11/11/20 and they still have no solve for the issue  but are talking to gm about a new part to solve the issue......?  Any way most the miles on 1000 month lease has gone traveling to and from the dealer, and dealer will have had my truck for most of the first month of the lease...........they gave me a loaner but it is not the truck I need for my business.  I am very disappointed....

[Adplusone]

Issue popped up on my 2021 Yukon AT4 after 450 miles.  Dealer repaired (hopefully for good) and picked it up today.  Here is the service ticket which replaced part 13530533 (inboard airbag pigtail connector) under service bulletin #PIT5759H.

 

 

Edited November 21, 2020 by Adplusone

[Mars Denali]

Hello All..Mars Denali here. Well since GM was good enough to buy back my 2015 earlier this month I’ve been torn over buying a 21 Yukon Denali or move over to the Tahoe High Country. I have to order it since I want the air suspension and none of the ones  I can find have it yet. 
A few questions for all of you fortunate to have bought a new Yukon Denali  :

1) how bad do you miss the up and down shift buttons that were on the stalk or is it no big deal?

2) does anyone have the air ride and if so does it make a big difference in ride quality ?

3) would you recommend to your family or friends to buy a new Denali now that you drive one yourself ?

PS..after my last experience with the 2015 Yukon Denali they bought back I’m a bit hesitant to buy another one but I love the styling. Interior  and the 6.2 L engine , even though mine did blow the engine ! Lol
thanks 

Steve 

 

[BooBoo]

At 800 miles my 2021 Yukon starting jerking like it had water in the gas. Then the check engine started flashing and throwing multiple codes: service safety restraint system, service traction control,  forward collision system unavailable and service ESC. Took it to local dealer and the computer stated it had misfired and they said that it should be okay. Drove it home and everything started again a few days later. Called the dealership where I purchased it. They ended up towing it to dealership and opening a tac case where they replaced a fuel injector which did not fix the problem. Then they replaced the  ECM which did not fix the problem. After 20 days in the shop they were advised by GMC to take off the intake manifold where they found a broke wire rubbing on the firewall which had caused over 180,000 misfires. After fixing this wire the check engine light and other warnings have gone away. But, the service safety restraint system warning is still constantly going off which is really aggravating.  Fixing to take it back to the dealership. I hope they can fix it pretty fast. I’m really disappointed with my first GMC purchase. 

 

  

Edited December 3, 2020 by BooBoo

[Mars Denali]

Well after GM buyback folks gave me $70k for my 2015 Yukon ( many many problems ending with a blown engine ) I went ahead and bought a new 2021 Yukon Denali. Even after advice from some of my family and friends I still pulled the trigger!

After 2200 miles i heard a muffled knock at low and higher speeds.which got louder and more consistent after a couple if days. Ran it down to dealer and they thought maybe it was the air compressor for the air ride suspension. But i pointed out it feels like a miss or a stumble when I hear the knock. Low and behold after a blown engine in my 2015 YD this 2021 model has a faulty lifter(s) and it caused one of the rods to bend! Damn thats two 6.2L GM V-8’S that had/ have faulty valve springs. 
I’ll give you an update when i get it back

PS.I love everything about this rig especially the smooth air ride suspension and interior quality but dang I cant believe my luck with their 6.2 engines! Oh and the sound system is a 10!   

 

[21_Sierra]

Hey everyone! I just took my 21 Sierra in for the “service safety restraint system” message that was popping up on my display, after being in the shop for two days the tech found (by technician bulletins) that one of my airbag sensors where faulty and every time I hit a larger enough bump, the pin inside the sensor would move causing the service message to pop up. When I get my truck back next week I’ll relay the exact info of what it was. 
Thanks

[bslagle]

I noticed a few previous posts for people having issues and repairs done on their 2021 Yukon's regarding the Drivers Front Seat Inboard Air Bag Connector. This seemed related to another recall or repair bulletin# PIT5759H. Both seem to be related to a seat safety restraint system issue for code B14DC. My Yukon, purchased new, has 43,000 miles on it and the seat safety restraint system was repaired under warranty by the dealership about 1 year ago. Within the last 2 months, I was getting alerts from OnStar about a warning for the Air Bag System Alert. It turns out that the air bag pig tail connector / terminal was at fault on the drivers front seat. Since the vehicle is 7,000 miles over warranty, the dealership refused to address this with GM to consider if still covered from a previous repair bulletin. I am thinking that bulletin# PIT5759H would have covered this issue along with the seat safety restraint system. The dealership was happy to charge over $600.00 to repair the connector with part# 13530533. The dealership also communicated that the foam, from the seat, was pushing on the connector and caused the issue. Originally, I was thinking the Air Bag System Alert was a simple computer reset issue, but when the dealership explained that a faulty connector was to blame due to seat foam, we felt concerned that this may be a safety issue that needed to be resolved immediately. Anyone have any suggestions on this and / or who to engage at GM on this? I would like to see if this issue should have been covered under the warranty when the work was originally performed for the seat safety restraint system.

 

The previous post that mentioned a similar issued was 11/21/2020 from Adplusone. 

 

Edited May 28, 2024 by bslagle