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NHTSA ID Number: 10222800
Manufacturer Communication Number: 22-NA-154
Summary
This informational bulletin is for Korea to see normal operation of A/C compressor.
Condition
Some customers may comment on the following:
- A/C compressor may intermittently exhibit higher than usual levels of noise and vibration
- Occasionally a booming sound may be heard between 1500 to 2000 engine RPM
Cause
The A/C compressor working load increases during high ambient temperatures and full A/C load conditions needed to cool the vehicle interior. Under these conditions, it is normal for compressor noise levels to increase.
Correction
If A/C system performance test and pressures are correct, the compressor noise is a normal condition of the system. Many A/C compressors replaced under warranty and returned are NTF (No Trouble Found). Compressor replacement will not improve the noise level.
4 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| CHEVROLET | COLORADO | 2019-2022 |
1 Associated Document
Manufacturer Communications
Bulletin No.: 22-NA-154
Date: August, 2022
MC-10222800-0001.pdf 491.898KB
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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 2025-04-17 / Affiliate links / Images from Amazon Product Advertising API
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Copyright 2022 General Motors
LLC. All Rights Reserved. Service Bulletin Bulletin No.: 22-NA-154 Date: August, 2022 INFORMATION Subject: A/C Compressor Normal Noise and Vibration Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Chevrolet Colorado 2019 2022 Involved Region or Country North America and Korea Additional Options (RPOs) Equipped with RPO LGZ Condition Some customers may comment on the following: • A/C compressor may intermittently exhibit higher than usual levels of noise and vibration • Occasionally a booming sound may be heard between 1500 to 2000 engine RPM Cause The A/C compressor working load increases during high ambient temperatures and full A/ C load conditions needed to cool the vehicle interior. Under these conditions, it is normal for compressor noise levels to increase. Correction If A/C system performance test and pressures are correct, the compressor noise is a normal condition of the system. Many A/C compressors replaced under warranty and returned are NTF (No Trouble Found). Compressor replacement will not improve the noise level. 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. Version 2 Modified Released August 02, 2022 Revised September 01, 2022 — Added North America to Regions. 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. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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