16-NA-109

Bulletin No.: 16-NA-109
Date: Mar-2017
Subject:
Brand:
Buick
Cadillac
Chevrolet
Grease or Sealant Visible on Electronic Power Steering Gear - Should Not Be Interpreted as Leak
Model:
All GM
Passenger
Cars and
Trucks
Model Year:
VIN:
from
to
2009
2018
from
Engine:
Transmission:
All
All
to
GMC
Involved Region or Country
North America and N.A. Export Regions
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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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.
Warranty Information
Labor Operation
Description
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Labor Time
7480278*
Inspecting for Excess Grease or Sealant on the Exterior of the Steering
Gear
0.2 hr
*This is a unique Labor Operation for Bulletin use only.
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.
Version
3
Modified
Feb. 7, 2017 – Adding Involved Region or Country and Warranty Information.
March 13, 2017 – Adding the 2018 Model Year.
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.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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