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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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10236071
Published by NHTSA2023-05-10
Manufacturer's number23-NA-085
Manufacturer's date2023-05-05
NHTSA componentELECTRICAL SYSTEM; SEATS; AIR BAGS

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

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Air bags, Electrical system, Seats

Trouble codes named

B14DC

Vehicles listed
CADILLAC ESCALADE2021, 2022, 2023
CADILLAC ESCALADE ESV2021, 2022, 2023
CADILLAC ESCALADE NA2021 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2021, 2022, 2023
CHEVROLET SUBURBAN 15002021, 2022 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2021, 2022, 2023
GMC YUKON2021, 2022, 2023
GMC YUKON XL2021, 2022, 2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20224562022-08-11. Seats And Restraints
21V4210002021-06-10. AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT; ELECTRICAL SYSTEM:SOFTWARE
20213482021-06-03. Airbag
20211652021-03-18. Seats And Restraints
20206452020-12-23. Seats And Restraints
20V7900002020-12-17. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
20V7350002020-11-25. SEATS:CRITICAL FASTENERS; SEATS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
23-NA-1702025-10-25. Service bulletin. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
25-NA-1152025-09-06. Service bulletin. This service bulletin provides information on the Headrest Audio Speaker distortion and the correction for this condition including wire to wire repair.
25-NA-1012025-06-26. Service bulletin. This service bulletin provides information on the restraint warning lamp being illuminated and the correction to this by replacing the passenger presence module.
22-NA-2422025-06-16. Service bulletin. This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.
24-NA-0222025-06-07. Service bulletin. This technical bulletin provides repair information to correct a customer concern of SUV Second Row Seat Bolt Torque Pattern.
24-NA-2292025-06-03. Service bulletin. 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-0872025-05-02. Service bulletin. 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-0772025-04-29. Service bulletin. Some customers may comment that they do not see any apps on their rear seat infotainment system.
23-NA-1852025-04-28. Service bulletin. 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.
22-NA-2422025-04-26. Service bulletin. This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.