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NHTSA ID Number: 10206736
Manufacturer Communication Number: PIT5878
Summary
This Preliminary information communicates to the field engineering contacts to assist in the diagnosis of HVAC concerns on the new 2022 HUMMER
EV.
1 Affected Product
Vehicle
Condition
Some customers may experience one or more of the following conditions:
1) Heat Inoperative
2) AC Inoperative
3) Any HVAC actuator concerns.
4) Any DTC’s related to the HVAC system
5) Any DTC’s related to the battery heating and cooling system
6) Any other issue that is related to the HVAC system
Cause
The HUMMER BEV Heat and HVAC system mechanical diagnostics are still being developed with engineering support.
SEOCONTENT-START
Bulletin No.: PIT5878
Published date: 12/17/2021
Preliminary Information
PIT5878 2022 HUMMER EV Heat – Defrost – AC – Battery Cooling –
and Air Conditioning Performance Concerns
Models
Brand: Model: Model Years:
VIN:
Engine: Transmissions:
from to
GMC Hummer EV 2022 All All All All
Involved Region or Country North America
Additional Options (RPO) CJ4
Condition
Some customers may experience one or more of the following conditions:
1) Heat Inoperative
2) AC Inoperative
3) Any HVAC actuator concerns.
4) Any DTC’s related to the HVAC system
5) Any DTC’s related to the battery heating and cooling system
6) Any other issue that is related to the HVAC system
Cause
The HUMMER BEV Heat and HVAC system mechanical diagnostics are still being
developed with engineering support.
Correction:
Before starting any performance or mechanical diagnosis or repairs:
1) Please create a TAC case through the Dealer Case Management system.
2) Please document any customer complaints, symptoms, and DTC’s.
3) Once a TAC case is established, you should expect to be contacted as soon as possible by a HUMMER EV level 2
specialist.
Version History
Version 1
Modified 12/17/2021 – Created on.
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5878
Published date: 12/17/2021
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- 3 Cans of R1234YF Geniune Honeywell Refrigerant Freon Cans
- Free Guage
- Perfect for recharging AC in the summer
- Fit type: Universal
- Part number: R134YFTOK
- Authentic HFO-R1234YF - This product should only be used in R1234YF systems. Please check the service sticker on your system or vehicle to identify the system type. This kit also includes a ZeroR service label for easy identification of the servce date and working pressures.
- 8 oz Cans – Cans are 8 oz net weight. Gas is measured in weight when compressed. Please don’t shake the can and think that it doesn’t feel full. Rest assured that it is. Different gases have different weights when compressed.
- Reverse Threads - These R1234YF cans are different from the older, more traditional, cans of refrigerant such as R134a. They have left hand, or reverse threads. This means you will need to turn the can counter clockwise to insert into your charging hose can tap.
- PERFORMANCE BOOSTER CHARGE KIT - ZeroR is a performance booster for use with R1234YF AC systems. You can use as many cans in your system as you wish, while being sure not to overfill the system with the included can tap with gauge.
- KIT CONTENTS - The can tap is 24 in length with a gauge metered for R1234YF systems. Standard R1234YF can taps will not work on ZeroR branded R1234YF cans, because our cans have a unique thread. 3 cans of ZeroR Permafrost in 4oz cans.
- NOT A Full Refrigerant - This product is a support fluid performance booster. It is a combination of two ZeroR products in one. The first part removes moisture (moisture can cause damage and reduced performance in the system), and the second part reduces friction (friction can reduce refrigerant flow and cause compressor damage)
- 24 in Charging Hose with Can Tap & Gauge - New longer 24 inch connection hose accomodates those harder to reach low side ports that were previously difficult to reach with a shorter 12 inch hose.
- 10 MINUTE INSTALL - Easy instructions are included and will take as little as 10 minutes to complete.
- One A/C Pro Auto AC Recharge Gauge and Hose Dispenser, R1234yf
- Extra large easy-to-read gauge for accurate charging
- 24" AC charging hose is long enough to reach difficult ports
- Push-on quick-connect coupler lets you easily connect the refrigerant hose
- Trigger dispenser offers easy use for effortless recharging
- Widely Usage --- R1234YF refrigerant quick couplers kit is suitable for converting R134a to R1234yf, with 3 way R1234yf/R134a air conditioner manifold gauge set, can be used for car freon recharge hose, AC oil injector, refrigerator freon recharge.
- R1234YF Couplers Kit --- R134A to R1234YF adapter conversion kit with red high pressure r1234yf to r134a adapter, and blue low pressure R1234YF quick connector, 1/4" SAE female x High pressure 16mm R134A quick coupler, 1/4’’ SAE female x low pressure 13mm R134A quick coupler.
- Brass Quick Coupler --- This high/low side pressure r1234yf to r134a couplers designed is made of high quality brass material with strong construction, the internal and external threads are deep and precise for perfect matching and replacement, easy and durable to use.
- Sealing Design --- The R1234yf to R134a conversion adapter designs with 6 sealing balls lock, which can provide good sealing, also with auto close function, convenient to use and prevent leakage effectively.
- Free-Worry Warranty --- The R1234YF quick couplers adapters with 12 months free-worry warranty and instruction manual, if you have any questions about the kit, please feel free to contact us and we will surely provide you with a satisfactory solution.
- 2 - Real R1234YF Cans (8oz each) and a 24" ZeroR Can Tap Gauge.
- Genuine R1234YF – This product is genuine and is purchased from a dealer in the USA. This product can only be used in R1234YF system. Please check the service sticker on your system to identify the system type. Installtion tools not included.
- 8oz Can – Cans are 8oz net weight and have reverse, or "left-hand" threads. Gas is measured in weight when compressed. Please don’t shake the can and think that it doesn’t feel full. Different gases have different weights when compressed. All cans are filled to the maximum pressure as allowed by the D.O.T.
- Returns - By law, products rated as hazardous materials (all compressed gasses) require a hazmat training & a license to ship. While this product may be returned for a refund, neither Amazon nor DIY Parts may provide a prepaid return shipping label due to liability reasons. Customers must assume all risk and cost for return shipping if they choose to return the products without proper certification. We apologize for any inconvenience this legal requirement may cause
- Legal Disclaimer: R1234YF Refrigerant for MVAC use in a 8oz Self-Sealing Container. Customer is responsible for complying with all federal, state and local laws when purchasing, handling, storing and installing refrigerants. DiY Parts is not liable for customer’s failure to comply with any legal requirements. This product is flammable, follow all labeled precautions when handling. This product can only ship ground services.
- For R1234YF
- Promotes colder air.
- Enhances system longevity.
- Functions as an A/C booster.
- Heavy Duty, High Quality Brass Gauge.
- Performance Booster Charge Kit - ZeroR Permafrost is a performance booster for R1234YF AC systems. You can use as many cans in your system as you wish, while being sure not to overfill the system with the included can tap with gauge.
- KIT CONTENTS - The can tap is 24 in length with a gauge metered for R1234YF systems. Standard R1234YF can taps will not work on ZeroR branded R1234YF cans, because our cans have a unique thread. 5 cans of ZeroR Permafrost for HFO-1234yf systems in 4oz cans.
- NOT A Full Refrigerant - This product is a support fluid performance booster. It is a combination of two ZeroR products in one. The first part removes moisture (moisture can cause damage and reduced performance in the system), and the second part reduces friction (friction can reduce refrigerant flow and cause compressor damage)
- 24 in Charging Hose with Can Tap & Gauge - New longer 24 inch connection hose accomodates those harder to reach low side ports that were previously difficult to reach with a shorter 12 inch hose.
Last update on 2025-05-08 / Affiliate links / Images from Amazon Product Advertising API
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