
Black plate (19,1)GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-7707482) -
2015 - crc - 6/3/14
In Brief 1-19
The low tire pressure warning light
alerts to a significant loss in
pressure of one of the vehicle's
tires. If the warning light comes on,
stop as soon as possible and inflate
the tires to the recommended
pressure shown on the Tire and
Loading Information label. See
Vehicle Load Limits on page 9-9.
The warning light will remain on until
the tire pressure is corrected.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
may be an early indicator that the
tire pressures are getting low and
the tires need to be inflated to the
proper pressure.The TPMS does not replace normal
monthly tire maintenance. Maintain
the correct tire pressures.
See
Tire Pressure Monitor System
on page 10-50.Engine Oil Life System
The engine oil life system calculates
engine oil life based on vehicle use
and displays a DIC message when
it is necessary to change the engine
oil and filter. The oil life system
should be reset to 100% only
following an oil change.
Resetting the Oil Life System
1. Turn the ignition to ON/RUN, with the engine off.
2. Fully press and release the accelerator pedal three times
within five seconds.
3. Turn the key to LOCK/OFF.
See Engine Oil Life System on
page 10-8.
E85 or FlexFuel
Vehicles with a yellow fuel cap can
use either unleaded gasoline or
ethanol fuel containing up to 85%
ethanol (E85). See E85 or FlexFuel
on page 9-40. For all other vehicles,
use only the unleaded gasoline
described under Fuel on page 9-39.
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.Avoid fast starts and accelerate
smoothly.
.Brake gradually and avoid
abrupt stops.
.Avoid idling the engine for long
periods of time.
.When road and weather
conditions are appropriate, use
cruise control.

Black plate (24,1)GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-7707482) -
2015 - crc - 6/3/14
5-24 Instruments and Controls
automatically appears in the bottom
right corner of the DIC display.
If there is a problem with the system
that controls the temperature
display, the numbers will be
replaced with dashes. If this occurs,
have the vehicle serviced by your
dealer.
If the vehicle has a diesel engine,
see the Duramax diesel
supplement.
DIC Operation and Displays
The DIC has different displays
which can be accessed by pressing
the DIC buttons on the instrument
panel, next to the instrument cluster.DIC ButtonsThe buttons are the trip/fuel, vehicle
information, customization, and set/
reset buttons. The button functions
are detailed in the following pages.
3(Trip/Fuel):
Press this button
to display the odometer, trip
odometers, fuel range, average
economy, fuel used, timer, average
speed, and digital tachometer.
T(Vehicle Information): Press
this button to display the oil life, rear
park assist, units, tire pressure
readings for vehicles with the Tire
Pressure Monitor System (TPMS),
engine hours, Tire Pressure Monitor
System (TPMS) programming for
vehicles with the TPMS and without
a Remote Keyless Entry (RKE)
transmitter, and compass zone and
compass calibration on vehicles
with this feature.
U(Customization): Press this
button to customize the feature
settings on the vehicle. See Vehicle
Personalization on page 5-37 for
more information.
V(Set/Reset): Press this button to
set or reset certain functions and to
turn off or acknowledge messages
on the DIC.

Black plate (27,1)GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-7707482) -
2015 - crc - 6/3/14
Instruments and Controls 5-27
Vehicle Information Menu
Items
T(Vehicle Information):Press
this button to scroll through the
following menu items:
Oil Life
Press
Tuntil OIL LIFE
REMAINING displays. This display
shows an estimate of the oil's
remaining useful life. If you see
99% OIL LIFE REMAINING on the
display, that means 99% of the
current oil life remains. The engine
oil life system will alert you to
change the oil on a schedule
consistent with your driving
conditions.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
See Engine Oil Messages on
page 5-30. You should change the
oil as soon as possible. See Engine
Oil on page 10-6. In addition to the
engine oil life system monitoring the
oil life, additional maintenance is recommended in the Maintenance
Schedule in this manual. See
Maintenance Schedule on
page 11-3.
Remember, you must reset the OIL
LIFE yourself after each oil change.
It will not reset itself. Also, be
careful not to reset the OIL LIFE
accidentally at any time other than
when the oil has just been changed.
It cannot be reset accurately until
the next oil change. To reset the
engine oil life system, see
Engine
Oil Life System on page 10-8.
Park Assist
If the vehicle has the Rear Parking
Assist (RPA) system, press
Tuntil
PARK ASSIST displays. This
display allows the system to be
turned on or off. Once in this
display, press to select between ON
or OFF. The RPA system
automatically turns back on after
each vehicle start. When the RPA
system is turned off and the vehicle
is shifted out of P (Park), the DIC
will display the PARK ASSIST OFF message as a reminder that the
system has been turned off. See
Object Detection System Messages
on page 5-32
andParking Assist on
page 9-35.
Units
Press
Tuntil UNITS displays. This
display allows you to select between
metric or English units of
measurement. Once in this display,
press
Vto select between METRIC
or ENGLISH units.
Tire Pressure
If the vehicle has the Tire Pressure
Monitor System (TPMS), the
pressure for each tire can be viewed
in the DIC. The tire pressure will be
shown in either kilopascals (kPa) or
pounds per square inch (psi). Press
Tuntil the DIC displays FRONT
TIRES PSI (kPa) LEFT ##
RIGHT ##. Press
Tagain until the
DIC displays REAR TIRES
PSI (kPa) LEFT ## RIGHT ##.

Black plate (30,1)GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-7707482) -
2015 - crc - 6/3/14
5-30 Instruments and Controls
close the door again. Check to see
if the message still appears on
the DIC.
PASSENGER DOOR OPEN
This message displays and a chime
sounds if the passenger door is not
fully closed and the vehicle is in a
drive gear. Stop and turn off the
vehicle, check the door for
obstructions, and close the door
again. Check to see if the message
still appears on the DIC.
RIGHT REAR DOOR OPEN
On some vehicles, this message
displays and a chime sounds if the
passenger side rear door is not fully
closed and the vehicle is in a drive
gear. Stop and turn off the vehicle,
check the door for obstructions, and
close the door again. Check to see
if the message still appears on
the DIC.
Engine Cooling System
Messages
ENGINE HOT A/C (Air
Conditioning) OFF
This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
SeeEngine Coolant Temperature
Gauge on page 5-13. To avoid
added strain on a hot engine, the air
conditioning compressor
automatically turns off. When the
coolant temperature returns to
normal, the air conditioning
compressor turns back on. You can
continue to drive the vehicle.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
ENGINE OVERHEATED IDLE
ENGINE
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to idle until it cools down. See
Engine
Coolant Temperature Gauge on
page 5-13.
ENGINE OVERHEATED STOP
ENGINE
This message displays and a chime
sounds if the engine cooling system
reaches unsafe temperatures for
operation. Stop and turn off the
vehicle as soon as it is safe to do so
to avoid severe damage. This
message clears when the engine
has cooled to a safe operating
temperature.
Engine Oil Messages
CHANGE ENGINE OIL SOON
This message displays when the
engine oil needs to be changed.
When you change the engine oil, be
sure to reset the CHANGE ENGINE
OIL SOON message. See Engine
Oil Life System on page 10-8 for
information on how to reset the

Black plate (9,1)GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-7707482) -
2015 - crc - 6/3/14
Vehicle Care 10-9
the oil life system to work properly,
the system must be reset every time
the oil is changed.
When the system has calculated
that oil life has been diminished, it
indicates that an oil change is
necessary. A CHANGE ENGINE
OIL SOON message comes on. See
Engine Oil Messages on page 5-30.
Change the oil as soon as possible
within the next 1 000 km (600 mi).
It is possible that, if driving under
the best conditions, the oil life
system might indicate that an oil
change is not necessary for up to a
year. The engine oil and filter must
be changed at least once a year
and, at this time, the system must
be reset. Your dealer has trained
service people who will perform this
work and reset the system. It is also
important to check the oil regularly
over the course of an oil drain
interval and keep it at the proper
level.If the system is ever reset
accidentally, the oil must be
changed at 5 000 km (3,000 mi)
since the last oil change.
Remember to reset the oil life
system whenever the oil is changed.
How to Reset the Engine Oil
Life System
Reset the system whenever the
engine oil is changed so that the
system can calculate the next
engine oil change. To reset the
system:
1. Turn the ignition key to ON/RUN
with the engine off.
2. Fully press and release the accelerator pedal slowly three
times within five seconds.
3. Turn the key to LOCK/OFF.
If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not reset. Repeat the
procedure.
Automatic Transmission
Fluid
When to Check and Change
Automatic Transmission Fluid
It is usually not necessary to check
the transmission fluid level. The only
reason for fluid loss is a
transmission leak or overheated
transmission. If a small leak is
suspected, use the following
procedures to check the fluid level.
However, if there is a large leak, it
may be necessary to have the
vehicle towed to a dealer and have
it repaired before driving the vehicle
further.
Change the fluid and filter at the
intervals listed in Maintenance
Schedule on page 11-3, and be sure
to use the transmission fluid listed in
Recommended Fluids and
Lubricants on page 11-10.

Black plate (3,1)GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-7707482) -
2015 - crc - 6/3/14
Service and Maintenance 11-3
Maintenance
Schedule
Owner Checks and Services
At Each Fuel Stop
.Check the engine oil level. See
Engine Oil on page 10-6.
Once a Month
.Check the tire inflation
pressures. See Tire Pressure on
page 10-49.
.Inspect the tires for wear. See
Tire Inspection on page 10-55.
.Check the windshield washer
fluid level. See Washer Fluid on
page 10-21.
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
last service. Reset the oil life
system when the oil is changed.
See
Engine Oil Life System on
page 10-8.
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 on page 10-55.
.Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil on page 10-6 andEngine Oil
Life System on page 10-8.
.Check engine coolant level. See
Engine Coolant on page 10-14.
.Check windshield washer fluid
level. See Washer Fluid on
page 10-21.
.Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care on page 10-79. Replace
worn or damaged wiper blades.
See Wiper Blade Replacement
on page 10-27.
.Check tire inflation pressures.
See Tire Pressure on
page 10-49.
.Inspect tire wear. See Tire
Inspection on page 10-55.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter on
page 10-12.
.Inspect brake system.