Yes, the system will not function without sufficient refrigerant.
R134a
R134a
Technically it uses R134a refrigerant.
R-134A
It uses R134a.It uses R134a.
It uses R134a.It uses R134a.
If you use anything other than R134a it will not function properly.
Most cars since the early 90's have yellow stickers under the hood, usually on the radiator support, that state in pound the amount of freon to use. www.nationalautoinc.com
Purchase a Freon recharge kit. Connects the Freon hoses to the ports on the air conditioner compressor. Release the Freon into the compressor.
This is normal it does it to cycle the freon
compressor
The compressor wont turn if the freon levels are too low! It has a cutoff so if the freon all escapes the system the compressor wont be damaged.