Cadillac CT4 Owner's Manual page 359

Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-15283644) - 2022 -
CRC - 7/28/21
vehicle in good working condition,
improves fuel economy, and reduces
vehicle emissions.
Because of the way people use
vehicles, maintenance needs vary.
There may need to be more frequent
checks and services. The Additional
Required Services - Normal Service are
for vehicles that:
Carry passengers and cargo within
recommended limits on the Tire
and Loading Information label. See
Vehicle Load Limits 0 213.
Are driven on reasonable road
surfaces within legal driving limits.
Use the recommended fuel. See
Recommended Fuel 0 276.
Refer to the information in Additional
Required Services - Normal Service.
The Additional Required Services -
Severe Service are for vehicles
that are:
Mainly driven in heavy city traffic
in hot weather.
Mainly driven in hilly or
mountainous terrain.
Frequently towing a trailer.
Used for high speed or competitive
driving.
Used for taxi, police, or delivery
service.
Refer to the information in Additional
Required Services - Severe Service.
Warning
Performing maintenance work can
be dangerous and can cause serious
injury. Perform maintenance work
only if the required information,
proper tools, and equipment are
available. If they are not, see your
dealer to have a trained technician
do the work. See Doing Your Own
Service Work 0 282.
Maintenance Schedule
Owner Checks and Services
Check the engine oil level. See Engine
Oil 0 289.
Once a Month
Check the tire inflation pressures.
See Tire Pressure 0 323.
SERVICE AND MAINTENANCE
Inspect the tires for wear. See Tire
Inspection 0 329.
Check the windshield washer fluid
level. See Washer Fluid 0 301.
Every Five Years
Replace brake fluid.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km. If driven under the
best conditions, the engine oil life
system might not indicate the need
for vehicle service for up to one year.
The engine oil and filter must be
changed at least once a year and the
oil life system must be reset. Your
trained dealer technician can perform
this work. If the engine oil life system
is reset accidentally, service the
vehicle within 5 000 km since the last
service. Reset the oil life system when
the oil is changed. See Engine Oil Life
System 0 291.
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