Service And Maintenance - GMC duramax diesel 2016 Supplement Manual

116

Service and Maintenance

keep the 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 are for vehicles that:
Carry passengers and cargo
within recommended limits on
the Tire and Loading Information
label. See Vehicle Load Limits
in the owner manual.
Are driven on reasonable road
surfaces within legal driving
limits.
Use the recommended fuel. See
Fuel for Diesel Engines 0 47.
Refer to the information in the
Maintenance Schedule Additional
Required Services - Normal chart.
The Additional Required Services -
Severe 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 the
Maintenance Schedule Additional
Required Services - Severe chart.
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 in the owner
manual.
Maintenance
Schedule
Owner Checks and Services
See the owner manual for other
services and intervals that may be
required.
At Each Fuel Stop
Check the engine oil level. See
Engine Oil 0 92.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km/600 mi. If driven
under the best conditions, the
engine oil life system may not
indicate the need for vehicle service
for up to a 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/3,000 mi since the