$500 a month for a new SUV on average. Will be much higher if you get a luxury SUV. If you have good credit, and you get a cheaper SUV, your car payments may be in the $400-450 range. This is assuming you mean new. Used SUV's will be much lower.
you need to give more info what do you want to pay what are the miles and make do you want all the extras are a plain jane that can be 500 5000 difference