18-NA-162

Bulletin No.:
Service Bulletin
18-NA-162
Date:
January, 2024
TECHNICAL
Subject:
A/C Not Cooling, A/C System Low or Empty of Refrigerant
Brand:
Model:
Chevrolet
Equinox
GMC
Terrain
Holden
Equinox
Model Year:
from
2018
to
2024
Breakpoint:
from
to
—
—
Engine:
Transmission:
—
—
2020
Involved Region or Country
United States, Canada, Mexico, Middle East, Israel, Brazil, Chile, Ecuador, Paraguay,
Uruguay, Venezuela, Korea, Australia/New Zealand, Egypt, Africa
Condition
Some customers may comment on the A/C not cooling. Technicians may find the A/C
system is low or empty of refrigerant.
Cause
This condition may be caused by A/C refrigerant leaking from the A/C condenser plug.
Correction
Perform an A/C system leak test to verify that the leak is coming from the A/C receiver
and dehydrator plug. Refer to Leak Testing (Fluorescent Dye Method) in SI.
If there is a leak coming from the A/C receiver and dehydrator plug, replace the plug.
Refer to Air Conditioning Refrigerant Desiccant Replacement in SI.
• If refrigerant has been validated to be coming from the tank, replace the plug using a
desiccant kit.
• If no signs of leaking have been found, refer to SI for further diagnostics.
Important: DO NOT open the A/C system until the replacement part is at the dealer.
Caution: Air Conditioning (A/C) desiccant must be replaced if the A/C refrigerant system
has been open to atmosphere for more than four hours, or if the A/C refrigerant oil has
been contaminated. Failure to replace the A/C desiccant will result in damage to the A/C
refrigerant system.
Important: When replacing the A/C receiver and dehydrator plug, apply a light coating of
poly-alkylene glycol (PAG) oil to the O-rings prior to installing the plug into the condenser.
Parts Information
Important: Service agents must comply with all
International, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,
packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict between
the procedures set forth in this bulletin and the
laws that apply to your dealership, you must follow
those applicable laws.
Important: DO NOT order for stock. Only order kits for
known leaking vehicles. Due to limited availability, we
wish to maximize inventory at CCA.
Copyright 2024 General Motors LLC. All Rights Reserved.
Causal
Part
Description
Part
Number
Qty
X
RECEIVER &
DEHYDRATOR
KIT-A/C
84555537*
1
*For all open return requests, technicians need to return the
old plug for further analysis.
Page 2
January, 2024
Bulletin No.: 18-NA-162
Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation
4416110
Description
Labor Time
Receiver and Dehydrator
Replacement
Use
Published
Labor
Operation
Time
Version
6
Modified
Released July 10, 2018
Revised December 12, 2018 – Added breakpoint.
Revised September 11, 2019 – Added the Holden Equinox, removed the Breakpoint
information, updated the Involved Region or Country and Correction, removed the
Service Procedure section and updated the Parts and Warranty Information.
Revised August 10, 2020 – Revised to add 2020 Model Year Holden Equinox and 2020–
2021 Model Years Equinox/Terrain.
Revised June 23, 2021 – Revised the Involved Region or Country and the Correction.
Revised January 17, 2024 - Removed Model Year 2021-2022 Holden Equinox, Added
Model Year 2023-2024 Equinox/Terrain and Added Important statement under Part
Information.
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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