See also:

Air Conditioning Refrigerant
Check the air conditioning lines and connections for leakage and damage. Check air conditioning performance according to the relevant shop manual if necessary. ...

Engine
...

52,500 miles (84,000 km) or 42 months
❑ Inspect air cleaner filter ❑ Inspect vacuum hose ❑ Replace engine oil and filter (52,500 miles (84,000 km) or 84 months) ...