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Service bulletin N232397530

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 id10234616
Published by NHTSA2023-04-21
Manufacturer's numberN232397530
Manufacturer's date2023-04-20
NHTSA componentVISIBILITY; STRUCTURE; LANE DEPARTURE

NHTSA's summary

Service Update. On certain vehicles, the side blind zone alert (SBZA) modules may have been installed on the wrong side of the rear bumper. Dealers are to ensure the modules are in the correct location.

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

Body and frame, Driver assistance, Glass, wipers and mirrors

Vehicles listed
CHEVROLET SILVERADO 15002023 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 15002023 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
20253502025-06-25. Structure
20240612024-02-01. Structure

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
22-NA-1612025-09-27. Service bulletin. This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the same speed.
25-NA-1182025-09-10. Service bulletin. This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to facilitate the questions needing to be answered by the customer regarding Automatic Emergency Braking (AEB) issues.
25-NA-1142025-09-06. Service bulletin. This informational bulletin provides information on Anti-Chip Coating Appearance.
23-NA-0972025-06-16. Service bulletin. This service bulletin provides a procedure to correct a customer concern of Upper Glove Box Door does not Open when the Button is Depressed or Takes Multiple Presses to Open.
24-NA-1642025-04-15. Service bulletin. This bulletin provides information on Wiper Blade Maintenance Tips.
19-NA-2552025-04-10. Service bulletin. This service bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
24-NA-0462025-03-13. Service bulletin. This technical bulletin provides a procedure to correct the condition of Suction Cup Marks on Window Glass.
05-08-51-001L2025-03-08. Service bulletin. This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film.
24-NA-1642025-03-06. Service bulletin. This bulletin provides information on Wiper Blade Maintenance Tips.
PIE08182025-03-06. Service bulletin. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the outside rearview mirror skull cap missing.