NHTSA ID Number: 10205049
Manufacturer Communication Number: 18NA240
Summary
This technical bulletin provides a procedure to locate a possible leak at the receiver dehydrator plug and to only replace the plug if the cause for the customers concern.
4 Affected Products
Vehicles
Condition
Some customers may comment that the A/C blows warm air.
The technician may find low or empty refrigerant in the system.
Cause
This condition may be caused by a leak at the A/C condenser receiver/dehydrator tank plug.
Correction
Note: The Receiver/Dehydrator Plug can be found in the lower left side of vehicle. For clarity, the condenser shown below is out of vehicle and up-side down.
Note: Due to possibility of the new/replacement desiccant being compromised, replace ONLY the Receiver/Dehydrator plug until further notice. Do not open the A/C system until the replacement part is at the dealer.
- Inspect the AC Condenser (1) and inspect the receiver/dehydrator tank plug (2).
- Add A/C dye to verify that the leak is coming from the plug.
- 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.
Parts
| Description | Header | Part Number | Qty |
| RECEIVER & DEHYDRATOR KIT, A/C | Enclave | 23350130 No products found. | 1 |
| Traverse | |||
| Acadia | 84473270 |
SEOCONTENT-START
Service Bulletin Bulletin No.: 18-NA-240
Date: August, 2021
TECHNICAL
Subject: Air Conditioning (A/C) Blows Warm Air
Brand: Model:
Model Year: VIN: Engine: Transmission:
from to from to
Buick
Enclave
2018 2018 Sept.
1, 2017
June
1, 2018
Cadillac XT5
Chevrolet Traverse
GMC Acadia
Involved Region or Country North America, Europe, Russia, Middle East, Israel, Japan, South Korea, South America
and Africa
Condition
Some customers may comment that the A/C blows warm air.
The technician may find low or empty refrigerant in the system.
Cause This condition may be caused by a leak at the A/C condenser receiver/dehydrator
tank plug.
Correction
Note: The Receiver/Dehydrator Plug can be found in the lower left side of vehicle. For
clarity, the condenser shown below is out of vehicle and up-side down.
4817931
Note: Due to possibility of the new/replacement desiccant being compromised, replace
ONLY the Receiver/Dehydrator plug until further notice. Do not open the A/C system until
the replacement part is at the dealer.
1. Inspect the AC Condenser (1) and inspect the receiver/dehydrator tank plug (2).
2. Add A/C dye to verify that the leak is coming from the plug.
• 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.
Page 2 August, 2021 Bulletin No.: 18-NA-240
Service Procedure
Important: Apply a light coating of AC oil to the O rings
prior to installing the assembly.
Refer to Receiver and Dehydrator Replacement in SI.
Parts Information
Causal Part Description Header Part Number Qty
X
RECEIVER &
DEHYDRATOR KIT,
A/C
Enclave
23350130
1
Traverse
Acadia
84473270
XT5
Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation
Description Labor Time
4416110 Receiver and Dehydrator
Replacement
Use
Published
Labor
Operation
Time
Version 3
Modified
Released October 17, 2018
Revised June 17, 2019 – Added a Note on Clarity in the Corrections section.
Revised August 20, 2021 – Removed Important statement in the Correction section.
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: 18-NA-240
Date: August, 2021
MC-10205049-9999.pdf 103.581KB
NHTSA ID Number: 10163228
Manufacturer Communication Number: 18NA240
Summary
This technical bulletin provides a procedure to locate a possible leak at the receiver dehydrator plug and to only replace the plug if the cause for the customers concern.
1 Associated Document
Manufacturer Communications
Bulletin No.: 18-NA-240
Date: June, 2019
MC-10163228-9999.pdf 576.616KB
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- GREEN REFRIGERATION SOLUTION: ZeroR AC Refrigerant is a 100% natural hydrocarbon gas, offering a more eco-friendly alternative to traditional AC recharge like R134a. It helps reduce environmental impact while providing reliable cooling performance
- R134A READY INSTALLATION: Designed to fit R134a systems, ZeroR AC Refrigerant installs just like any standard refrigerant. The cans feature R134a-compatible threads, ensuring easy and seamless installation with your existing R 134a refrigerant can taps
- SMALLER CAN BIGGER IMPACT: Each can of our car AC refrigerant holds 6oz of refrigerant, but its performance is equivalent to 16oz of R134a. This makes it a highly efficient and cost-effective option, requiring less product while maintaining excellent performance
- BUILT FOR SAFE USAGE: ZeroR AC Car Refrigerant is rated with a class 2.1 rating, similar to newer refrigerants like R1234YF. When used in systems designed for refrigerants, it’s safe and poses no danger to users under normal operating conditions
- REGULATED FOR LEGAL SAFETY: ZeroR AC Recharge Can is approved for use in R134a systems only, in compliance with EPA regulations. It ensures proper functionality without the risk of mixing refrigerant types, providing peace of mind and legal safety
- R134a Replacement - Hydrocarbon blend that is 100% natural, safe for the ozone and non global warming. Chemically compatible with R134a systems.
- 6oz (11.7 fl oz) Cans - Compressed gas is measured by weight. This gas is light weight compared to others, but has the same "volume". Guaranteed that you will use no more than normal!
- SSV Cans - Self Sealing Valve allows for the storage of unused gas. Requires SSV compatible tool. Avoid "piercing" style tools or the gas may come out slowly or not at all.
- Disclosures - Product is flammable like many other modern refrigerants. Observe all precautions on the product lablel when handling and storing. Follow all legal requirements when charging your system. Hydrocarbon blend refrigerant for NON MVAC use in 6oz SSV Cans.
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