Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2019TRAX PREMIER, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1 (HEATING SYSTEM, VENTILATION SYSTEM, AND AIR CONDITIONING SYSTEM)VISUAL IDENTIFICATIONREFRIGERANT LABEL SYMBOLSAIR CONDITIONING SERVICE FITTINGS
2019 Chevrolet Trax Premier, AWD
Air Conditioning Service Fittings
2019 Chevrolet Trax Premier, AWDSECTION Air Conditioning Service Fittings
WARNING: This page is about a different car, the 2018 Chevrolet Trax and 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
Service fittings meeting SAE J639 are used on this vehicle for R-1234yf refrigerant. GM has chosen gray caps to designate systems with R-1234yf.
Refrigerant Charge Label Symbols
| Symbols | Description |
|---|---|
| Caution | |
| Air Conditioning System-Mobile Air Conditioning | |
| MAC System Lubricant Type | |
| See Vehicle Service Manual for MAC Service Information | |
| Requires Registered Technician to Service MAC System | |
| Flammable Refrigerant | |
| For Safety System Components Shall Be Replaced-Shall Not Be Repaired or Salvaged for Reuse |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.