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Service bulletin 17409 (Bulletin

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 id10135155
Published by NHTSA2018-05-07
Manufacturer's number17409 (Bulletin
Manufacturer's date2017-11-27
NHTSA componentWHEELS:LUGS/NUTS/BOLTS/STUDS; STRUCTURE

NHTSA's summary

17409 - Customer Satisfaction. Certain vehicles, that have had an engine replacement may have the wrong torque applied to front cradle-to-body bolts (M14) and front cradle stabilizer brackets-to-body bolts (M10). The Engine Replacement Service Procedure in the vehicle Service Information instructs technicians to use improper torque values when reattaching the cradle. Dealers will replace bolts (M14 and M10), verify cradle alignment and apply the correct torque to attaching bolts.

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, Wheels, Wheel nuts and studs

Vehicles listed
BUICK LACROSSE2017
GMC ACADIA2017

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

Other bulletins for the same vehicles and component
17-NA-1432017-08-15. Service bulletin. This technical bulletin provides a procedure to replace the axle nuts and washers if a clicking noise is heard on turns from the front.
17-NA-1262017-08-15. Service bulletin. This informational bulletin provides information on Non-Design Intent Wheel Lock Nuts and Lug Nuts.