GMC Cadillac CT5 2021 Manual page 383

382 SERVICE AND MAINTENANCE
since the last service. Reset the oil life
system when the oil is changed. See
Engine Oil Life System 0 317.
Air Conditioning Desiccant
(Replace Every Seven Years)
The air conditioning system requires
maintenance every seven years. This
service requires replacement of the
desiccant to help the longevity and
efficient operation of the air
conditioning system. This service can
be complex. See your dealer.
Tire Rotation and Required
Services Every 12 000 km
(7,500 mi)
Rotate the tires, if recommended for
the vehicle, and perform the following
services. See Tire Rotation 0 354.
Check engine oil level and oil
life percentage. If needed, change
engine oil and filter, and reset oil
life system. See Engine Oil 0 315 and
Engine Oil Life System 0 317.
If equipped, check the air filter
life percentage. If necessary, replace
the engine air filter and reset the
engine air filter life system. See
Engine Air Filter Life System 0 318.
If the vehicle is not equipped with
the engine air filter life system,
inspect the engine air cleaner filter.
See Engine Air Cleaner/Filter 0 319.
Check engine coolant level. See
Cooling System 0 321.
Check windshield washer fluid level.
See Washer Fluid 0 326.
Check tire inflation pressures. See
Tire Pressure 0 348.
Inspect tire wear. See Tire Inspection
0 354.
Visually check for fluid leaks.
Inspect brake system. See Exterior
Care 0 371.
Visually inspect steering,
suspension, and chassis
components for damage, including
cracks or tears in the rubber boots,
loose or missing parts, or signs of
wear at least once a year. See
Exterior Care 0 371.
Inspect power steering for proper
attachment, connections, binding,
leaks, cracks, chafing, etc.