1. Check the spare tire
One of the most important things you should do before you leave the lot with a rental car is to check the spare tire.
More:
Always check for spare tire in the rental vehicle before you leave the lot.
Checking for spare tire and other things in rental vehicles; is a best practice to follow before you leave the lot.
Spare tires must be in good and working condition. Since, the vehicle is on rent, you will not be much familiar with the behavior and condition of the vehicle. Spare tire will help in case one of 4 primary tire is no more in working condition.