A/C symbol.
With reference to US legislation relating to Air Conditioning (A/C) refrigerants, J2845 Technician Training for Safe Service and Containment of Refrigerants Used in Mobile Air Conditioning (A/C) Systems (HFO-1234yf) states that under no circumstances should any part of the A/C system be serviced, dismantled, or replaced by anyone other than suitably qualified and certified personnel. Make sure that the refrigerant is correctly contained at all times. Failure to adhere to the above may result in serious personal injury or death.
All replacement parts for the Air Conditioning (A/C) system must be new and equivalent to the manufacturer's original equipment. All replacement parts must comply with the relevant SAE standard (J2842). Contact a retailer/authorized repairer for advice. Failure to do so may lead to serious personal injury or death.
The following symbols may be used on an under-hood label and are relevant to the refrigerant fluid:
A/C symbol.
Lubricant symbol.
Caution.
Flammable refrigerant.
Required registered technician to service A/C system.
Consult the Owner's Handbook.