2021 Toyota 1234YF HVAC Compressor Oil Requirement TSB

Important Information for 2021 Toyota 1234YF HVAC Oil Repairs

This bulletin, TSB 10177779, provides crucial guidance for technicians performing repairs on the 1234YF HVAC system in 2021 gas-powered Toyota vehicles. It highlights the specific compressor oil requirements to ensure proper system function after service. Using the correct Toyota 1234YF HVAC oil is essential for system longevity and performance.

Specific Compressor Oil Requirements

When repairing a 1234YF HVAC system on a gas-powered (non-hybrid) 2021 Toyota vehicle, additional compressor oil may be necessary to complete the repair correctly. Toyota specifies several types of 1234YF compressor oils that are approved for use. These include ND-12, PS-D1, and VC100YF.

These specific Toyota 1234YF HVAC oil types are available for purchase through the Toyota Approved Dealer Equipment website. Technicians should ensure they are using the appropriate oil for the particular system being serviced.

What Owners Should Know

If your 2021 Toyota vehicle requires HVAC system service, particularly involving the 1234YF refrigerant system, ensure your service center is aware of this technical service bulletin. While this TSB primarily guides technicians, it ensures that your vehicle receives the correct fluids during repair. Using the specified Toyota 1234YF HVAC oil helps maintain the efficiency and reliability of your air conditioning system.

Source: NHTSA ID 10177779