First Use of New R-1234yf Refrigerant in 2013 XTS

A new air conditioning refrigerant, R-1234yf, is being introduced in the 2013 Cadillac XTS and upcoming ATS. R-1234yf is a new environmentally-friendly refrigerant that has a 99.7% lower Global Warming Potential (GWP) than R-134a. GWP is a value used to compare different greenhouse gases.


R-1234yf stands for a specific compound: 1 – double bond, 2 – hydrogens, 3 – carbons, 4- fluorines, yf – position of the fluoro atoms. It is the industry accepted solution for a low GWP refrigerant.


The new refrigerant is considered mildly flammable and has thermodynamic properties similar to R-134a. R-1234yf systems require the use of specific A/C compressor oils.


Revised Service Procedures


TIP: As with all refrigerants, always work in a well-ventilated area and never release refrigerants into the atmosphere.


Technicians repairing or servicing motor vehicle air conditioning (MVAC) systems in the U.S. must be trained and certified by an EPA approved organization. Certification is obtained by passing an EPA approved examination. Go to for more information.


In Canada, provincial regulations require that all motor vehicle air conditioning service technicians must be trained and certified.


Vehicles equipped with R-1234yf refrigerant systems have unique low and high side service fittings, internal heat exchangers (IHX), and SAE J2842-compliant evaporator cores.


There are new or revised service procedures for R-1234yf equipped vehicles (Refer to the appropriate Service Information for details):

• Refrigerant Recovery and Recharge
• Leak Test
• Evaporator Cores
• Internal Heat Exchanger


A/C Compressor Oils


R-1234yf systems require the use of specific A/C compressor oils. Refer to HVAC > Specifications > Adhesives, Fluids, Lubricants and Sealers in the Service Information for proper type and use.


Only GM lubricant is approved. The XTS A/C system uses P/N 19260643 (in Canada, P/N 19260644) and the ATS uses P/N 19299051 (in Canada, P/N 19299052).


New Tools and Equipment


New tools and equipment are required to service vehicles equipped with R-1234yf.


GE-50300 Recovery/Recycle/Recharge Machine for R-1234yf A/C Systems (Fig. 6) — (certified to SAE J2843) Performs gas analysis before gas recovery or fills with recovery/fill lockout if gas is contaminated (less than 98% R-1234yf). VIN input is required. The VIN is retrieved via an integrated VCI cable connected to the vehicle’s OBD2 connector or may be manually entered. It records and prints VIN, pressures, temperature, recovered/charged amount, gas analysis results and encrypts into a warranty code. A printed summary of the completed repair from the GE-50300 is required to be attached to each Repair Order and a warranty code is required to be entered into the comment field of warranty claim for reimbursement.


Fig 6


TIP: The GE-50300 Recovery/Recycle/Recharge Machine for R-1234yf A/C Systems requires product activation within 30 days of the machine’s initial startup. Refer to the Quick Start Guide and follow the on-screen instructions to complete the on-line registration and product activation process.


GE-50957 Contaminated Refrigerant Recovery Machine — (certified to SAE J2851) Required for recovery of contaminated refrigerant systems.


GE-50078 Electronic Refrigerant Leak Detection for R-1234yf and R-134a (certified to SAE J2913 for use on R-1234yf systems and certified to SAE J2971 for R-134a systems). The SAE J2843-certified equipment (GE-50300) requires a SAE J2913-certified leak detector to perform the mandated gross leak check.


GE-50744 R-1234yf PAG Oil Injection Hose — Used to replace PAG oil in R-1234yf systems with belt-driven A/C compressors. Use with GE-45037 and the oil specified in the Service Information.


GE-45268-130 R-1234yf Fitting Kit – Refrigerant Flush Kit — Required to adapt GE-45268 Flushing Kit to R-1234yf.


Parts Information


Part Number



(19260235 Canada)

R1234yf Refrigerant

(supplied in 4.5 kg cylinders)


(19260644 Canada)

XTS A/C Compressor Oil


(19299052 Canada)

ATS A/C Compressor Oil


(10953458) Canada

Dye, R1234yf Refrigerant System


– Thanks to Frank Rogers


3 Responses to “First Use of New R-1234yf Refrigerant in 2013 XTS”

  • Ed.:

    The activation code for the GE-50300 comes from a website address during the initial set-up procedure the dealership technician follows when the machine is first turned on. A registration screen asks the technician to register the machine. The technician can elect to do it then or bypass it. At that time, the 30-day clock starts. Each time the tech uses the machine, a reminder is shown pointing out the need to register it and the number of days remaining until the 30 days end. After the 30-day period, if the machine has not been registered, it will NOT move past the registration screen until the registration is completed on the website and an activation code is input into the machine via the keypad. The registration website is

  • Jesse:

    We have this machine at our dealership and have been trying to register it now for sometime. I was informed that I need to get an activation code to be able to start using my machine. Please get back with asap so I can have my technicians start using this machine.

  • Bob Anderson:

    when will this new equipment be needed cross line. Chevrolet for example? Thanks

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