Generally, the tow company must make reasonable attempts to notify you, such as by calling the phone number on your vehicle registration, or by sending a letter to the address on your registration. If they are unable to contact you, they may leave a notice on your vehicle or at your residence.
It's important to note that the tow company may charge you a daily storage fee for each day your vehicle is in their possession. So, if you find that your car has been towed, it's best to contact the tow company as soon as possible to make arrangements to retrieve it.