SB-16-NA-109

File in Section:
Service Bulletin
-
Bulletin No.:
16-NA-109
Date:
April, 2016
TECHNICAL
Subject:
Grease or Sealant Visible on Electronic Power Steering Gear - Should Not Be
Interpreted as Leak
Brand:
Model:
Buick
Cadillac
Chevrolet
GMC
All GM
Passenger
Cars and
Trucks
Model Year:
VIN:
from
to
from
2009
2017
Engine:
Transmission:
All
All
to
Condition
Some customers or technicians may comment on seeing grease or sealant on certain
locations of the steering gear.
Cause
During the manufacturing process, sufficient grease is used for lubrication and sealing of
components of the steering gear. Also, sealant is added to areas of the steering gear to
keep water and environmental contaminants from getting into the steering gear.
Examples of Seepage
The graphics below are photo examples, which include
arrows showing some of the common areas where
grease may be evident after the vehicle has been
driven for a length of time.
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Copyright 2016 General Motors LLC. All Rights Reserved.
Page 2
April, 2016
Bulletin No.: 16-NA-109
Correction
Note: Electric power steering systems do not have
fluid inside of them.
If oil is observed dripping off of them, look above or
around the site for an oil leak.
If upon inspection, the steering gear assembly clamps,
boots, and fasteners are all in place, the visual
evidence of grease/sealant on the exterior of the
steering gear is considered normal and no correction is
necessary. If excess grease is noted, it should be wiped
off the exterior of the gear , however, sealant should be
left in place as a barrier to water and contamination,
and no cleaning is required.
Customer Information
Please communicate to the customer this is a normal
condition of their vehicle. Please share this information
with the customer, including a copy of this bulletin.
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Version
1
Modified
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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