Chevrolet 2015 City Express Owner's Manual page 258

Maintenance Schedule
Additional Required
Services - Normal
Change engine oil and filter, rotate tires, and
perform Required Services.
Inspect evaporative control system. (1)
Replace engine air cleaner filter. (2)
Replace spark plugs.
Drain and fill engine cooling system. (3)
Visually inspect accessory drive belts. (4)
Replace brake fluid. (5)
Footnotes Maintenance
Schedule Additional Required
Services - Normal
(1) Check all fuel and vapor lines
and hoses for proper hook-up,
routing, and condition.
(2) If operating mainly in dusty
conditions, more frequent
maintenance may be required.
(3) First replacement interval is
160 000 km (100,000 mi) or
84 months. After first replacement,
replace every 120 000 km
(75,000 mi) or 60 months. See
Cooling System on page 10-13.
Service and Maintenance
(4) After 64 000 km (40,000 mi) or
48 months, inspect every 16 000 km
(10,000 mi) or 12 months. Replace
the drive belts if found damaged.
(5) Or every three years, whichever
occurs first.
11-5