What kind of work is done for a service depends on the mileage. The best place to check this is in your owner's manual. It will tell you the maintenance schedule in the back of the book explaining what is replaced and what is checked.
Some things that might be done, oil change, coolant flush, tires rotated, spark plugs & wires, belts replaced...etc.
Again, it depends on how many miles are on your vehicle and what is required according to your maintenance schedule. Hope this helps.
〉 Answered on Mar 30th, 2007 by Lori Johnson, Owner and Instructor at Ladies Start Your Engines