Engine Oil Additives
Do not add anything to the oil. The recommended
oils with the starburst symbol that meet
GM Standard GM6094M are all you need for good
performance and engine protection.
Engine Oil Life System
When to Change Engine Oil
Your vehicle has a computer system that lets you know
when to change the engine oil and lter. This is based
on engine revolutions and engine temperature, and not
on mileage. Based on driving conditions, the mileage at
which an oil change will be indicated can vary
considerably. For the oil life system to work properly, you
must reset the system every time the oil is changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE ENGINE OIL SOON message
will come on. SeeDIC Warnings and Messages on
page 3-63. Change the oil as soon as possible within the
next 600 miles (1 000 km). It is possible that, if you are
driving under the best conditions, the oil life system might
not indicate that an oil change is necessary for over
a year. However, the engine oil and lter must be
changed at least once a year and at this time the system
must be reset. Your dealer/retailer has trained service
people who will perform this work using genuine parts
and reset the system. It is also important to check the oil
regularly and keep it at the proper level.If the system is ever reset accidentally, you must
change the oil at 3,000 miles (5 000 km) since your last
oil change. Remember to reset the oil life system
whenever the oil is changed.
How to Reset the Engine Oil Life
System
The Engine Oil Life System calculates when to change
the engine oil and lter based on vehicle use. Whenever
the oil is changed, reset the system so it can calculate
when the next oil change is required. If a situation occurs
where you change the oil prior to a CHANGE ENGINE
OIL SOON message coming on, reset the system.
Always reset the engine oil life to 100% after every oil
change. It will not reset itself. To reset the Engine Oil
Life System:
1. Display the OIL LIFE REMAINING on the DIC. If
your vehicle does not have DIC buttons, the vehicle
must be in PARK (P) to access this display. SeeDIC
Operation and Displays (With DIC Buttons) on
page 3-55orDIC Operation and Displays
(Without DIC Buttons) on page 3-60.
2. Press and hold the SET/RESET button on the DIC,
or the trip odometer reset stem if your vehicle does
not have DIC buttons, for more than ve seconds.
The oil life will change to 100%.
If the CHANGE ENGINE OIL SOON message comes
back on when you start your vehicle, the Engine Oil Life
System has not reset. Repeat the procedure.
5-18
Roadside Assistance Program
For vehicles purchased in the U.S. call,
1-800-GMC-8782 (1-800-462-8782); (Text
telephone (TTY): 1-888-889-2438).
For vehicles purchased in Canada, call1-800-268-6800.
Service is available 24 hours a day, 365 days a year.
As the owner of a new GMC vehicle, you are
automatically enrolled in the GMC Roadside
Assistance program.
Who is Covered?
Roadside Assistance coverage is for the vehicle
operator, regardless of ownership. In Canada,
a person driving the vehicle without the consent
of the owner is not eligible for coverage.
Services Provided
The following services are provided in the U.S. and
Canada up to 5 years/100,000 miles (160 000 km),
whichever occurs rst, and, in Canada only, up
to a maximum coverage of $100.
Fuel Delivery:Delivery of enough fuel for the
vehicle to get to the nearest service station
(approximately $5 in Canada). In Canada, service
to provide diesel may be restricted. For safety
reasons, propane and other alternative fuels will
not be provided through this service.
Lock-out Service:Lock-out service will be covered
at no charge if you are unable to gain entry into
your vehicle. A remote unlock may be available if
you have an active OnStar
®subscription. To ensure
security, the driver must present personal
identi cation before lock-out service is provided. In
Canada, the vehicle registration is also required.
Emergency Tow From a Public Roadway or
Highway:Tow to the nearest dealership for warranty
service or in the event of a vehicle-disabling crash.
Winch-out assistance is provided when the vehicle is
mired in sand, mud, or snow.
Flat Tire Change:Installation of a spare tire in good
condition, when equipped and properly in ated, is
covered at no charge. The customer is responsible
for the repair or replacement of the tire if not covered
by a warrantable failure.
Jump Start:A battery jump start is covered at no
charge if the vehicle does not start.
Trip Routing Service:Upon request, Roadside
Assistance will send you detailed, computer
personalized maps, highlighting your choice of either
the most direct route or the most scenic route to your
destination, anywhere in North America, along with
helpful travel information pertaining to your trip.
Please allow three weeks before your planned
departure date. In Canada, trip routing requests will
be limited to six per calendar year.
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