2021 Yukon Denali - Service Safety Restraint System

bbodiford · September 14, 2020

Got a 2 week old 2021 Yukon Denali. Has anyone else experienced the non-stop "Service Safety Restraint System" alert? This goes off about every 2-3 minutes in mine. Taking to dealership this week, but checking to see if anyone has experienced same issue and if their dealership found a fix.

bbodiford · September 14, 2020

Dash images...

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aseibel · September 14, 2020

yahtzee · September 20, 2020

I had this occur on my 2021 Yukon Denali and the dealer updated some software that has resolved it.

Ponchagolfs · September 29, 2020

Just bought 2021 Yukon Denali and after leaving dealership, I am having the same issue with "Check safety restraint system" warning. It is constant. Dealer has vehicle but no fix after two days. Will advise if repaired and how.....hopefully soon!

bbodiford · September 29, 2020

My dealer fixed mine. It was a sensor in the front seat connected to the safety restraint system.

Frankdp23 · October 19, 2020

I have had my Denali 3 weeks. Same issue. Took it once, no fix. Here now, and they said it is a software update that hasn't gotten pushed to them yet. I've seen on Tahoe forums it was a seat issue with the wiring. I'm not sure which it is, but thinking I may take it to another dealer if they don't seem to know what it is here.

toasty · October 19, 2020

8 hours ago, Frankdp23 said:

I have had my Denali 3 weeks. Same issue. Took it once, no fix. Here now, and they said it is a software update that hasn't gotten pushed to them yet. I've seen on Tahoe forums it was a seat issue with the wiring. I'm not sure which it is, but thinking I may take it to another dealer if they don't seem to know what it is here. There's seemingly been a few different sources of issues. I've also seen one or two that got a software update to fix, another the steering wheel airbag module, and yet the others with the wiring issue in the seat (document number/info is on the tahoe/suburban site that you likely found by now)

SILVER SLED · October 20, 2020

Don’t know of any software update, but there is an updated wiring harness and connector for the driver seat. There is a bulletin for this, I’ll find it later.

Ponchagolfs · October 20, 2020

Same issue in my 2021 Yukon Denali. I was told It was a loose wire under the seat. Haven’t had a problem since it was fixed.

toasty · October 20, 2020

This was posted on the tahoe/suburban forum -

SILVER SLED · October 20, 2020

#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

2021 denali · October 23, 2020

2021 Denali. Same problem here. Took to dealership about two weeks ago and was told it was a “coil” (I’m a woman and of course fell for this) but a week later mine has started giving me the same alert. Nonstop. I also have an issue with my buttons on back of steering wheel to change stations. Works sometimes. Doesn’t sometimes. When talking on the phone thru the car - sounds like someone is underwater.

toasty · October 24, 2020

On 10/22/2020 at 7:16 PM, 2021 denali said:

2021 Denali. Same problem here. Took to dealership about two weeks ago and was told it was a “coil” (I’m a woman and of course fell for this) but a week later mine has started giving me the same alert. Nonstop. I also have an issue with my buttons on back of steering wheel to change stations. Works sometimes. Doesn’t sometimes. When talking on the phone thru the car - sounds like someone is underwater.

you didn't fall for anything. The SIR Coil/Clock spring has been the cause of some of the error messages you are seeing. There's been two sources of the error, thus far. One is the steering wheel SIR Coil/clockspring and/or the steering wheel airbag module. The other source is the inboard driver seat airbag connector. Is the button issue new?