Yes, you can physically drive your vehicle safely even if it has a complete refrigerant leak and your air conditioning system is blowing hot air, because the automotive AC system operates independently from core mechanical functions required to drive the car. The AC compressor is a belt-driven accessory, and if the system loses all refrigerant, modern safety switches or cycling clutches will simply prevent the compressor from engaging, protecting it from damage while allowing the engine, steering, braking, and transmission to operate normally. However, driving without AC in extreme summer heat can cause driver fatigue or distraction. Furthermore, running a low-charge system with a failing clutch can cause belt squeal. You can troubleshoot by turning the AC off entirely. You can verify that your car is safe to drive when engine temperatures and core mechanical operations remain stable.
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