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NHTSA ID Number: 10163219
Manufacturer Communication Number: 17NA293
Summary
This technical bulletin provides a procedure to replace the AC distributor case if the rear air blows warm when the AC is selected.
2 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
BUICK | ENVISION | 2016-2017 |
Condition
One or more of the following concerns from the 2nd row / rear HVAC:
- Temperature doesn’t change when commanded
- A/C inoperative
- Blowing warm air when the A/C is selected
- Blowing cold air when heat is selected
Cause
This condition may be caused by the auxiliary temperature valve, internal to the A/C distributor case, being fractured.
Parts
| Description | Part Number | Qty |
| CASE, A/C EVPR & BLO | 84213709 | 1 |
| SEAL KIT, HTR & A/C EVPR & BLO MDL | Refer to EPC | 1 |
1 Associated Document
Manufacturer Communications
Bulletin No.: 17-NA-293
Date: June, 2019
MC-10163219-9999.pdf 339.581KB
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NHTSA ID Number: 10134584
Manufacturer Communication Number: 17NA293
Summary
This technical bulletin provides a procedure to replace the AC distributor case if the rear air blows warm when the AC is selected.
1 Associated Document
Manufacturer Communications
Bulletin No.: 17-NA-293
Date: October, 2017
MC-10134584-9999.pdf 955.667KB
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NHTSA ID Number: 10159609
Manufacturer Communication Number: 17NA293
Summary
This technical bulletin provides a procedure to replace the AC distributor case if the rear air blows warm when the AC is selected.
1 Associated Document
Manufacturer Communications
Bulletin No.: 17-NA-293
Date: September, 2017
MC-10159609-9999.pdf 277.616KB
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NHTSA ID Number: 10137754
Manufacturer Communication Number: PIT5581
Summary
This preliminary information advises the technician to inspect for a broken temperature door versus replacing the temperature actuator and resulting in a misdiagnosis.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5581
Published date: 08/31/2017
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- Approved for use in California
- High Mileage refrigerant for vehicles over 75, 000 miles
- Contains approximately 10 oz. of R-134a and 2 oz. of additives
- Contains leak sealer to seal common A/C leaks in rubber hoses, gaskets, and O-rings
- Contains high mileage No wear additives
- Universal - ZeroR AC Refrigerant is a hydrocarbon that safely bonds with chemicals like R134a, R1234YF and R12. We can only advertise this product to be used in R134a systems due to EPA regulations in the USA on both R12 and R1234YF systems. EPA also prohibits mixing refrigerant types. See the description for all legal disclaimers.
- Easy - This product installs just as easily as any R134a products. Cans even have R134a threads and the majority of R134a can taps will work for these cans.
- 6oz Cans - Refrigerants are compressed gasses and are measured by weight, not by liquid volume such as water. All gasses compress differently and produce a different weight. ZeroR AC Refrigerant is low weight compared to R134a, but its performance is equal to 16oz of R134a.
- Eco Friendly – ZeroR AC Refrigerant is a 100% Natural gas unlike R134a, R1234yf and R12.
- Safe – ZeroR AC Refrigerant has a class 2.1 flammability rating just like the new R1234YF which is now used in 100% of newly manufactured vehicles. Under normal operating conditions this product presents no danger to its users when handled properly and used in systems approved for flammable refrigerants.
- This item cannot be shipped to Washington or California
- Contains approximately 1.5oz of refrigerant and 1.5oz of additives
- Repairs Metal Leaks in evaporators, condensers, compressors, accumulators and receiver dryers
- Seals Rubber Leaks in O-rings, gaskets, and hoses
- With red dye for detecting leaks too large to repair
- Reusable dispensing hose designed for compliance and to work only with R-134a cans with self-sealing valve can tops
- Digital gauge with guided command
- Guided Commands eliminate the guesswork
- 24” Long Hose
- Trigger Dispenser
- Quick Connect Coupler
- Replaces lost R-134a refrigerant and oil in automotive A/C system
- Formulated with COOL BOOST technology to provide up to 18% colder air and eliminate moisture buildup
- System-safe leak sealer additive seals common A/C leaks in rubber hoses, gaskets and O-rings
- Contains R-134a gas which is acceptable for use in motor vehicle A/C (MVAC) systems
- Complies with Section 612 of the EPA Clean Air Act, EPA Compliant in Self Sealing Cans
Last update on 2025-04-15 / Affiliate links / Images from Amazon Product Advertising API
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SEOCONTENT-START
Service Bulletin Bulletin No.: 17-NA-293
Date: June, 2019
TECHNICAL
Subject: Rear Air Conditioning Inoperative, Rear Air Temperature Doesn’t Change When
Commanded
This Bulletin replaces PIT5581. Please discard PIT5581.
Brand: Model:
Model Year: VIN: Engine: Transmission:
from to from to
Buick Envision 2016 2017 SOP July
20, 2017
Involved Region or Country North America
Additional Options (RPOs) Equipped with HVAC SYSTEM-AIR CONDITIONING, FRT & RR ELECTRONIC
CONTROLS (CJ4)
Condition
Some customers may comment on one or more of the following concerns from the 2nd row / rear HVAC:
• Temperature doesn’t change when commanded
• A/C inoperative
• Blowing warm air when the A/C is selected
• Blowing cold air when heat is selected
Cause
4861180
This condition may be caused by the auxiliary temperature valve, internal to the A/C distributor case, being fractured.
Page 2 June, 2019 Bulletin No.: 17-NA-293
Correction
4861172
Note: The technician may find the pivot for the temperature valve has pulled away from the actuator motor (2).
Verify if the temperature valve is working properly:
• If it has been validated that the rear temperature valve is not working properly, replace the A/C distributor case.
• If the temperature valve has been found to be working correctly, refer to SI for further diagnostics.
Bulletin No.: 17-NA-293 June, 2019 Page 3
Service Procedure
5361052
Important: Wiring harness length has the potential for the Upper DAT (1) and EAT (2) connectors to plug into the wrong sensor. To avoid miswiring the replacement case, you should mark each of the temperature sensor wires and note their location prior to removal. Confirm that the Purple/Black wire connector (3) goes to the Upper DAT, and the Gray/Black wire connector (4) goes to the EAT.
Replace the A/C distributor case. Refer to Air Distributor Case Replacement in SI.
Page 4 June, 2019 Bulletin No.: 17-NA-293
Parts Information
Causal
Part
Description Part
Number
Qty
x CASE, A/C EVPR
& BLO
84213709 1
N/A SEAL KIT, HTR &
A/C EVPR &
BLO MDL
Refer
to EPC
1
Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation
Description Labor Time
4412280 Air Distributor Case
Replacement
Use
Published
Labor
Operation
Time
Version 6
Modified Revised September 29, 2017 – Added the 2016 Model Year and supersede statement.
Revised October 27, 2017 – Added the Important statement to the Correction section.
Revised July 10, 2018 – Add seal kit to Parts Information section.
Revised December 05, 2018 – Update Conditions section to add cold air information and
temp control.
Revised June 21, 2019 – Added Important and Graphic to Service Procedure.
SEOCONTENT-END
