30,000 miles is most manufactures reccomendations on everything but the engine oil witch is 3,000 miles
every 12000 miles
Yes, your fluids should be flushed every so often.
Urine because you can change the fluids often.
it doesn't.
Refer to owners manual, it will give you mileage frames on when to change fluids.
The ABS control module on a 2002 Chevy Avalanche is typically located near the brake master cylinder, mounted on the driver's side of the engine compartment. It is integrated with the hydraulic brake assembly, often found on the firewall. To access it, you may need to remove some components or covers for better visibility.
Every 2000 miles
Topping off fluids are often not advised on vehicles. Fluid chambers are so well sealed that the only fluids that are added are after a change of the fluids. If fluids need to be added at other times, it is the sign of a major problem and should be handled by an expert.
Follow the recommendations in your owners manual or change it every 5,000 miles.
every 10,000 miles
Probably every 5000 miles. Or 6 months.
look in your owners manual but usually at 100,000 anymore.