18NA316

Bulletin No.:
Service Bulletin
18-NA-316
Date:
October, 2019
INFORMATION
Subject:
Brand:
Normal Characteristic - Front Tire Contacts Control Arm On Full Turn at Low Speed On
Vehicles Equipped with 20” Tire/Wheels
Model:
GMC
Breakpoint:
to
2015
2020
Silverado
2015
2018
Silverado LD
2019
2019
Sierra
2015
2018
Sierra
Limited
2019
2019
Yukon
Models
2015
2020
Suburban
Chevrolet
Model Year:
from
Tahoe
from
to
Engine:
Transmission:
Involved Region or Country
North America, Middle East
Condition
Some customers may comment on a light contact between the front tire and the control
arm when in full turn and at low speeds.
Cause
This condition may be due to the design which allows increased steering articulation and
reduces turning radius.
Correction
No repair attempts should be made as this is normal due to build variation.
Customer Information
Please communicate to the customer this condition is a
normal operating characteristic of their vehicle. Please
share this information with the customer, including a
copy of this message.
Version
2
Modified
Released October 26, 2018
Revised October 15, 2019, Updated Region to include GMNA and Added 2020 SUV’s
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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