The make and model of your vehicle has nothing to do with checking the battery. A battery is a battery. Before testing a battery, it must first be palced on a charger for a long enough period of time to be fully charged. Then a battery is tested by measuring the voltage while the battery is under an electrical load. I do not recall the amount of load [measured in Amps or watts], but it should be fairly heavy. Store bought testers have the required load built in so the only action necessary is to properly connect [making sure of correct polarity, i.e., red to red (positive to positive), and black to black (negative to negative)] the clamps of the tester to the positive and negative terminals of the battery. The instructions with the tester will explain how to read the meter, and what values should be.