19NA172

Bulletin No.:
Service Bulletin
Date:
19-NA-172
August, 2019
INFORMATION
Subject:
Information on Oil Leak from Front of Vehicle
Brand:
Model:
Chevrolet
Equinox
GMC
Terrain
Holden
Equinox
Model Year:
VIN:
from
to
2018
2020
from
to
Engine:
Transmission:
Involved
Region or
Country
North America, Middle East, Israel, South America, South Korea, China, Thailand, Australia, Egypt and
Africa.
Additional
Options
(RPOs)
F48
Condition
Some customers may comment that an oil leak is coming from the front of the vehicle.
Cause
This condition may be caused by fluid leaking from or around the right side weep hole of the Power Transfer
Unit (PTU).
In an effort to make the correct leak repair the first time on the PTU, it is critical to determine exactly where the
leak is coming from. Different leak points will require different repairs.
Information
5381508
When fluid is found to be leaking out of or near the right side weep hole on the PTU, validate if the leak is from
the weep hole or the actuator sealing surface.
Copyright 2019 General Motors LLC. All Rights Reserved.
Page 2
August, 2019
Bulletin No.: 19-NA-172
4563672
• If any fluid is coming out of the weep hole, it will require the replacement of the PTU Input Shaft Seal (2).
4563662
• If transmission fluid is leaking from the PTU Shift Actuator to PTU interface, the PTU Shift Actuator Seal
(3) should be replaced.
Note: Refer to the Electronic Part Catalog and SI for the correct parts and replacement procedures.
Version
1
Modified
Released July 31, 2019
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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