It depends on the type of service your vehicle needs. Oil changes for instance, should be done every 3,000 miles or every 3 months. Brakes should be checked every 60,000 miles. Air filters should be changed every 6,000 miles. New tires are generally needed every year. Etc.
Your fuel tanks are built to last the lifetime of your vehicle. They should only need to be serviced if they are damaged in an accident, or if some contaminant has been added to the tank.
That will depend on how the vehicle is used and what the manufacture recommends. It could be as soon as every 20,000 miles or as long as 100,000+
once a week is recommended
It depends on the vehicle and the driver. Some folks wear out brakes in less than 15K and some folks go 75K before they need replacing. Have your brakes checked each time you have the vehicle serviced.
You should get your floor machines serviced once every other year. They require regular upkeep in order to last a very long time.
It breaks
Annually. If it`s fueled with oil absolutely annually.
This is your transaxle warning light. You should take your vehicle to a mechanic as soon as possible to have your vehicle serviced.
In order to keep your vehicle in the best condition possible, you should take it in regularly to be serviced. You should take it in every 3 to 6 months (or 3,000 to 5,000 miles) to have the oil changed and other fluid levels checked. In addition to oil changes, you should take your vehicle into a repair shop at least every two years or 30,000 miles—whichever comes first. Avoiding these tuneups and major inspections will generally result in a vehicle that runs much less efficiently than it might otherwise, and can put you at risk for higher repair bills in the future. Of course, any time you notice a strange noise or other issue, you should take your vehicle in immediately.
once a year, or 15,000km whichever comes first.
unhook battery
It means the vehicle needs to be serviced.