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Service bulletin 23-NA-162

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 id10246488
Published by NHTSA2023-12-09
Manufacturer's number23-NA-162
Manufacturer's date2023-11-30
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM; POWER TRAIN

NHTSA's summary

This service bulletin advises the tech of updated Diagnostic procedures in Service Information (SI) to avoid misdiagnosis when addressing a customer concern of Service Rear Axle Message displayed on the Driver information Center (DIC).

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

Electrical system, Equipment and accessories, Transmission and driveline

Vehicles listed
BUICK LACROSSE2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
BUICK REGAL2013, 2014, 2015, 2016, 2017, 2018, 2019
BUICK REGAL TOURX2018
CADILLAC SRX2010, 2011, 2012, 2013, 2014, 2015, 2016
CADILLAC XTS2013, 2014, 2015, 2016, 2017, 2018, 2019

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

Recalls for the same vehicles and component
20142302014-06-12. Electrical
14V3170002014-06-12. ELECTRICAL SYSTEM
20141542014-04-25. Powertrain
14V2120002014-04-25. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
20140822014-03-18. Electrical
20140542014-02-25. Powertrain
14V0920002014-02-21. POWER TRAIN:AUTOMATIC TRANSMISSION
13V2200002013-05-24. EXTERIOR LIGHTING:BRAKE LIGHTS; ELECTRICAL SYSTEM
20131492013-05-06. Electrical
13V1730002013-05-06. ELECTRICAL SYSTEM

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
18-NA-1802025-10-16. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
18-NA-1802025-09-26. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
PI0281L2025-06-12. Service bulletin. This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
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.
21-NA-1392025-05-01. Service bulletin. This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set.
23-NA-0012025-04-28. Service bulletin. This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
13-08-116-001K2025-04-25. Service bulletin. 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-0982025-04-24. Service bulletin. 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.
23-NA-1652025-04-15. Service bulletin. This service bulletin provides repair information to correct a customer concern of Vehicle Will Not Lock and Unlock (Loss of Active Functions) Crank or Start (Loss of Passive Functions) with DTC P0513 Set.
15-06-03-001F2025-04-15. Service bulletin. 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.