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Service bulletin G-166227

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 id10114161
Published by NHTSA2017-08-15
Manufacturer's numberG-166227
Manufacturer's date2013-05-21
NHTSA componentTIRES; WHEELS:LUGS/NUTS/BOLTS/STUDS

NHTSA's summary

13147 - Service Update - Rotate the tires. These vehicles may experience loosening of the wheel nuts. If this occurs, a creaking, rattling or grinding noise may originate from the wheel area. A steering vibration may also be present. If unnoticed or ignored, one or more of the wheel lug nuts could detach, or fatigue. The wheel attachment studs may fracture the studs.

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

Tires, Wheels, Wheel nuts and studs

Vehicles listed
CADILLAC SRX2012

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-1262017-08-15. Service bulletin. This informational bulletin provides information on Non-Design Intent Wheel Lock Nuts and Lug Nuts.
G-1930222017-02-25. Service bulletin. 13147A - SERVICE UPDATE (REVISED EXPIRATION DATE). THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO ROTATE THE TIRES ON CERTAIN VEHICLES EQUIPPED WITH 18” WHEELS (RV1/RT4) THAT ARE IN DEALER INVENTORY. THESE VEHICLES MAY EXPERIENCE LOOSENING OF THE WHEEL NUTS. IF THIS OCCURS, A CREAKING, RATTLING OR GRINDING NOISE MAY ORIGINATE FROM THE WHEEL AREA. A STEERING VIBRATION MAY ALSO BE PRESENT. IF UNNOTICED OR IGNORED, ONE OR MORE OF THE WHEEL LUG NUTS COULD DETACH, OR FATIGUE. THE WHEEL ATTACHMENT STUDS MAY FRACTURE THE STUDS.
131472016-06-09. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-0000193022-A2016-03-31. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-0000166227-A2016-03-31. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-131472013-07-20. Service bulletin. CADILLAC: ON CERTAIN VEHICLES, INFORMATION PROVIDED REGARDING SERVICE PROCEDURES TO ROTATE TIRES THAT EXPERIENCE CREAKING, RATTLING OR GRINDING NOISE DUE TO LOOSENING OF WHEEL NUTS THAT CAN DETACH OR BECOME FATIGUE. MODELS 2012 SRX. *PE