# Service bulletin 23\-NA\-085

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10239694
- Published by NHTSA: 2023\-07\-27
- Manufacturer's number: 23\-NA\-085
- Manufacturer's date: 2023\-07\-17
- NHTSA component: SEAT BELTS; AIR BAGS; ELECTRICAL SYSTEM

## NHTSA's summary

This technical bulletin provides a procedure to correct the condition of Service Restraint System Message / Air Bag Warning MIL / DTC B14DC Set.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10239694-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10239694-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Air bags, Electrical system, Seat belts

## Trouble codes named

B14DC

## Vehicles listed

- 2021 to 2022 CADILLAC ESCALADE
- 2021 to 2022 CADILLAC ESCALADE ESV
- 2021 CADILLAC ESCALADE NA
- 2021 to 2022 CHEVROLET SUBURBAN
- 2021 to 2022 CHEVROLET SUBURBAN 1500
- 2021 to 2022 CHEVROLET TAHOE
- 2021 to 2022 GMC YUKON
- 2021 to 2022 GMC YUKON XL

## Recalls for the same vehicles and component

- [2022456](/recalls/tc/2022456.md), 2022-08-11: Seats And Restraints
- [22V617000](/recalls/nhtsa/22V617000.md), 2022-08-11: SEAT BELTS:CRITICAL FASTENERS
- [21V421000](/recalls/nhtsa/21V421000.md), 2021-06-10: AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT; ELECTRICAL SYSTEM:SOFTWARE
- [2021348](/recalls/tc/2021348.md), 2021-06-03: Airbag
- [21V210000](/recalls/nhtsa/21V210000.md), 2021-03-25: SEAT BELTS:REAR/OTHER
- [2021165](/recalls/tc/2021165.md), 2021-03-18: Seats And Restraints
- [21V190000](/recalls/nhtsa/21V190000.md), 2021-03-18: SEAT BELTS; SEAT BELTS:REAR/OTHER
- [2020645](/recalls/tc/2020645.md), 2020-12-23: Seats And Restraints
- [20V811000](/recalls/nhtsa/20V811000.md), 2020-12-23: SEAT BELTS:CRITICAL FASTENERS; SEAT BELTS
- [20V792000](/recalls/nhtsa/20V792000.md), 2020-12-17: SEAT BELTS:CRITICAL FASTENERS; SEAT BELTS

## Other bulletins for the same vehicles and component

- [23\-NA\-170](/bulletins/11024486.md), 2025-10-25, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
- [25\-NA\-101](/bulletins/11019755.md), 2025-06-26, Service bulletin: AIR BAGS; ELECTRICAL SYSTEM; SEATS. This service bulletin provides information on the restraint warning lamp being illuminated and the correction to this by replacing the passenger presence module.
- [24\-NA\-229](/bulletins/11019017.md), 2025-06-03, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
- [25\-NA\-087](/bulletins/11017595.md), 2025-05-02, Service bulletin: ELECTRICAL SYSTEM. This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- [25\-NA\-077](/bulletins/11017307.md), 2025-04-29, Service bulletin: SEATS; ELECTRICAL SYSTEM. Some customers may comment that they do not see any apps on their rear seat infotainment system.
- [23\-NA\-185](/bulletins/11017255.md), 2025-04-28, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM; STEERING. This service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases \- Service 4WD on DIC, Intermittent Failures, Noise Concerns, Driveline/Steering Vibration/Shudder, Intermittent DTCs/MIL Illuminated, Engagement/Disengagement/Ratcheting Concerns.
- [13\-08\-116\-001K](/bulletins/11017244.md), 2025-04-25, Service bulletin: ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
- [24\-NA\-098](/bulletins/11017207.md), 2025-04-24, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides information for dealers/technicians on Service Programming System \(SPS\) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
- [15\-06\-03\-001F](/bulletins/11017031.md), 2025-04-15, Service bulletin: ELECTRICAL SYSTEM. This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- [PIE0820A](/bulletins/11016912.md), 2025-04-09, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. This engineering information \(EI\) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the power sliding console being inoperative.

JSON: [/v1/bulletins/10239694](/v1/bulletins/10239694)

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