2018 Chevrolet Tahoe: A/C Refrigerant and Oil Specifications

Quick Answer

• Refrigerant Type: R-1234yf
• Refrigerant Charge: 21.16 oz (600g)
• PAG Oil Type: PAG 46
• PAG Oil Capacity: 6.8 oz (200 ml)
• Low-Side Port Location: Near the firewall on the passenger side
• High-Side Port Location: In front of the radiator on the passenger side

Why R-1234yf Matters

The 2018 Chevrolet Tahoe uses R-1234yf refrigerant, a newer and more environmentally friendly alternative to the older R-134a. This change was mandated by the EPA to reduce the environmental impact of automotive air conditioning systems. While R-1234yf is better for the environment, it is also more expensive and requires special equipment for service. It is also mildly flammable, so it is important to follow all safety precautions when working with it.

Recharge Procedure

Recharging the A/C system on a 2018 Chevrolet Tahoe is not a simple DIY project. It requires special equipment and training. It is important to have the system evacuated and recharged by a qualified technician. Overcharging or undercharging the system can cause damage to the A/C components.

Common A/C Problems

Some common A/C problems on the 2018 Chevrolet Tahoe include:

• Compressor failure
• Condenser leaks
• Evaporator leaks

If you are experiencing any of these problems, it is important to have the vehicle diagnosed and repaired by a qualified technician.

When to Call a Pro

If you are not comfortable working on your own vehicle, it is best to leave A/C repairs to the professionals. A qualified technician will have the proper equipment and training to safely and effectively service your A/C system.

Disclaimer: It is important to be aware of the laws and regulations regarding refrigerant handling in your area. In the United States, you must be EPA 609 certified to purchase and handle refrigerants.

Find a certified A/C shop on Repairius.