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
| MAKE | MODEL | YEAR |
| BUICK | ENCLAVE | 2018 |
| CADILLAC | XT5 | 2018 |
| CHEVROLET | TRAVERSE | 2018 |
| GMC | ACADIA | 2018 |
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  |
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
https://www.nhtsa.gov/recalls?nhtsaId=10205049
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
https://www.nhtsa.gov/recalls?nhtsaId=10163228
MC-10163228-9999.pdf 576.616KB
MC-10163228-9999
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- Complies with Section 612 of the EPA Clean Air Act, EPA Compliant in Self Sealing Cans
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