Chevy Customer Service
Join Date: Nov 2010
Location: Detroit, Michigan USA
This is a great question.
Regularly scheduled maintenance, as you likely already are aware of, revolves around oil changes. Typically, these would include a change of oil and oil filter, visual check for leaks or damage, inspection of engine air filter, tire rotation, brake system inspection, and a check on engine coolant and windshield washer fluids.
Every other oil change, recommended maintenance also includes an inspection of the suspension and steering components, cooling system, wiper blades, restraint system components, the throttle system, and a replacement of the passenger compartment air filter.
At the 50,000 mile marker, additional recommended services include an inspection of the fuel and exhaust systems for damage, and a change of the automatic transaxle fluid and filter (only if vehicle is driven in taxing environments like mountainous terrain, otherwise can wait until the 100,000 mile mark). If these haven’t been inspected or performed as of yet with your vehicle, I would say to have this included in your tune up.
As you’re drawing nearer to the 100,000 mile marker, in addition to the transaxle fluid, it is recommended to replace spark plugs (and likely wires) at that point.
I hope this is helpful for you,
GM Customer Service