Chevrolet 2016 Colorado Owner's Manual page 351

350 Service and Maintenance
Maintenance Schedule
Additional Required
Services - Severe
Rotate tires and perform Required Services.
Check engine oil level and oil life percentage.
Change engine oil and filter, if needed.
Replace passenger compartment air filter. (1)
Replace engine air cleaner filter. (2)
Inspect evaporative control system. (3)
Replace spark plugs. Inspect spark plug wires.
Change automatic transmission fluid and filter.
Change manual transmission fluid.
Change transfer case fluid, if equipped with
4WD. (4)
Drain and fill engine cooling system. (5)
Visually inspect accessory drive belts. (6)
Replace brake fluid. (7)
Replace clutch fluid. (7)
Footnotes Maintenance
Schedule Additional Required
Services - Severe
(1) Or every two years, whichever
comes first. More frequent
replacement may be needed if the
vehicle is driven in areas with heavy
traffic, poor air quality, areas with
high dust levels or are sensitive to
environmental allergens. Filter
replacement may also be needed if
you notice reduced airflow, windows
fogging up, or odors. Your local GM
Service location can help you
determine when it is the right time to
replace your filter.