2015 CHEVROLET TAHOE maintenance reset

Black plate (26,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
1-26 In Brief
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 9-14.
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.
SeeTire Pressure Monitor System
on page 10-55.Engine Oil Life System
The engine oil life system calculates
engine oil life based on vehicle use
and, on most vehicles, 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
To reset the engine oil life system:
1. Display OIL LIFE REMAINING
on the DIC. See Driver
Information Center (DIC) (Base
Level) on page 5-29 orDriver
Information Center (DIC)
(Uplevel) on page 5-31. If the
vehicle does not have DIC
buttons, the vehicle must be in
P (Park) to access this display.
2. Press and hold the
Vbutton on
the DIC, or the trip odometer
reset stem if the vehicle does
not have DIC buttons, for
several seconds. The oil life will
change to 100%. The oil life system can also be reset
as follows:
1. Turn the ignition to ON/RUN with
the engine off.
2. Fully press the accelerator pedal slowly three times within
five seconds.
3. Display OIL LIFE REMAINING on the DIC. If the display shows
100%, the system is reset.
See Engine Oil Life System on
page 10-10.
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 9-70. For all other vehicles,
use only the unleaded gasoline
described under Fuel on page 9-69.

Black plate (30,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
5-30 Instruments and Controls
.Hourmeter
.Unit
Digital Speedometer
The speedometer shows how fast
the vehicle is moving in either
kilometers per hour (km/h) or miles
per hour (mph). The speedometer
cannot be reset.
Trip
Turn the trip odometer reset stem
until TRIP displays. The current
distance traveled, in either
kilometers (km) or miles (mi), since
the last reset for the trip odometer is
shown. The trip odometer can be
reset to zero by pressing and
holding the trip odometer reset stem
while the trip odometer is displayed.
Fuel Range
This display shows the approximate
distance the vehicle can be driven
without refueling. The fuel range
estimate is based on an average of
the vehicle's fuel economy over recent driving history and the
amount of fuel remaining in the fuel
tank. Fuel range cannot be reset.
Average Fuel Economy
The Average Fuel Economy display
shows the approximate average
liters per 100 kilometers (L/100 km)
or miles per gallon (mpg). This
number reflects only the
approximate average fuel economy
that the vehicle has right now, and
will change as driving conditions
change. This number is based on
the number of L/100 km (mpg)
recorded since the last time this
menu item was reset. Reset this
display by pressing the trip
odometer reset stem.
Tire Pressure
Turn the trip odometer reset stem
until a vehicle with the approximate
pressures of all four tires displays.
Tire pressure is displayed in either
kilopascal (kPa) or in pounds per
square inch (psi).
See
Tire Pressure Monitor System
on page 10-55 andTire Pressure
Monitor Operation on page 10-56.
Remaining Oil Life
Turn the trip odometer reset stem
until REMAINING OIL LIFE
displays. An estimate of the oil's
remaining useful life is shown.
REMAINING OIL LIFE 99% means
99% of the current oil life remains.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
See Engine Oil Messages on
page 5-38. The oil should be
changed as soon as possible. See
Engine Oil on page 10-7. In addition
to the engine oil life system
monitoring the oil life, additional
maintenance is recommended in the
Maintenance Schedule. See
Maintenance Schedule on
page 11-2.
The Oil Life display must be reset
after each oil change. It will not
reset itself. Do not reset the Oil Life
display at any time other than when

Black plate (33,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
Instruments and Controls 5-33
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
SeeEngine Oil Messages on
page 5-38. The oil should be
changed as soon as possible. See
Engine Oil on page 10-7. In addition
to the engine oil life system
monitoring the oil life, additional
maintenance is recommended in the
Maintenance Schedule. See
Maintenance Schedule on
page 11-2.
The Oil Life display must be reset
after each oil change. It will not
reset itself. Do not reset the Oil Life
display 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, press and
hold
Vfor several seconds while
the Oil Life display is active. See
Engine Oil Life System on
page 10-10. Tire Pressure:
Shows the
approximate pressures of all four
tires. Tire pressure is displayed in
either kilopascal (kPa) or in pounds
per square inch (psi). If the pressure
is low, the value for that tire is
shown in amber. See Tire Pressure
Monitor System on page 10-55 and
Tire Pressure Monitor Operation on
page 10-56.
Fuel Economy: The center
displays the approximate
instantaneous fuel economy as a
number and bar graph. Displayed
above the bar graph is a running
average of fuel economy for the
most recently traveled selected
distance. Displayed below the bar
graph is the best average fuel
economy that has been achieved for
the selected distance. The selected
distance is displayed at the top of
the page as “last xxx mi/km.” Next
to the odometer, the Active Fuel
Management displays the number of
cylinders the vehicle is running on.
See Active Fuel Management
®on
page 9-29. Press
pto select the distance or
reset best value. Use
wandxto
choose the distance and press
V.
Press
wandxto select “Reset
Best Score.” Press
Vto reset the
best average fuel economy. After
reset, the best value displays “-,-”
until the selected distance has been
traveled.
The display provides information on
how current driving behavior affects
the running average and how well
recent driving compares to the best
that has been achieved for the
selected distance.
Timer: This display can be used as
a timer. To start the timer, press
V
while this display is active. The
display will show the amount of time
that has passed since the timer was
last reset. To stop the timer, press
V
briefly while this display is active
and the timer is running. To reset

Black plate (38,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
5-38 Instruments and Controls
ENGINE OVERHEATED STOP
ENGINE
This message displays and a chime
may sound 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. SeeEngine
Oil Life System on page 10-10 for
information on how to reset the
message. See Engine Oil on
page 10-7 andMaintenance
Schedule on page 11-2.
ENGINE OIL LOW ADD OIL
On some vehicles, this message
displays when the engine oil level
may be too low. Check the oil level
before filling to the recommended
level. If the oil is not low and this
message remains on, take the
vehicle to your dealer for service.
See Engine Oil on page 10-7.
ENGINE OIL HOT IDLE
ENGINE
This message displays when the
engine oil becomes hotter than the
normal operating temperature. Stop
and allow the vehicle to idle until it
cools down. See Engine Coolant
Temperature Gauge on page 5-18.
OIL PRESSURE LOW STOP
ENGINE
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon as possible and have the vehicle
serviced by your dealer. See
Engine
Oil on page 10-7.
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays and a chime
may sound when the cooling system
temperature gets too hot and the
engine further enters the engine
coolant protection mode. See
Engine Overheating on page 10-19
for more information.
This message also displays when
the vehicle's engine power is
reduced. Reduced engine power
can affect the vehicle's ability to
accelerate. If this message is on,
but there is no reduction in
performance, proceed to your
destination. The performance may
be reduced the next time the vehicle
is driven. The vehicle may be driven
at a reduced speed while this
message is on, but acceleration and
speed may be reduced. Anytime

Black plate (11,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
Vehicle Care 10-11
The oil life system can also be reset
as follows:
1. Turn the ignition to ON/RUN withthe engine off.
2. Fully press the accelerator pedal slowly three times within
five seconds.
3. Display the OIL LIFE REMAINING on the DIC. If the
display shows 100%, the system
is reset.
If the vehicle has a CHANGE
ENGINE OIL SOON message and it
comes back on when the vehicle is
started and/or the OIL LIFE
REMAINING is near 0%, the engine
oil life system has not been 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, then use the following
checking procedures to check the
fluid level. However, if there is a
large leak, then it may be necessary
to have the vehicle towed to a
dealer service department and have
it repaired before driving the vehicle
further.
{Caution
Use of the incorrect automatic
transmission fluid may damage
the vehicle, and the damage may
not be covered by the vehicle
warranty. Always use the (Continued)
Caution (Continued)
automatic transmission fluid listed
inRecommended Fluids and
Lubricants on page 11-11.
Change the fluid and filter at the
scheduled maintenance intervals
listed in Maintenance Schedule on
page 11-2. Be sure to use the
transmission fluid listed in
Recommended Fluids and
Lubricants on page 11-11.
How to Check Automatic
Transmission Fluid
{Caution
Too much or too little fluid can
damage the transmission. Too
much can mean that some of the
fluid could come out and fall on
hot engine parts or exhaust
system parts, starting a fire. Too
little fluid could cause the
(Continued)

Black plate (61,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
Vehicle Care 10-61
SeeTire Pressure on
page 10-53 andVehicle Load
Limits on page 9-14.
Reset the Tire Pressure Monitor
System. See Tire Pressure
Monitor Operation on
page 10-56.
Check that all wheel nuts are
properly tightened. See “Wheel
Nut Torque” underCapacities
and Specifications on
page 12-2.
{Warning
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
make wheel nuts become loose
after time. The wheel could come
off and cause an accident. When
changing a wheel, remove any
rust or dirt from places where the
wheel attaches to the vehicle. In
an emergency, a cloth or a paper
(Continued)
Warning (Continued)
towel can be used; however, use
a scraper or wire brush later to
remove all rust or dirt.
Lightly coat the center of the
wheel hub with wheel bearing
grease after a wheel change or
tire rotation to prevent corrosion
or rust build-up. Do not get
grease on the flat wheel
mounting surface or on the
wheel nuts or bolts.
When It Is Time for New
Tires
Factors, such as maintenance,
temperatures, driving speeds,
vehicle loading, and road conditions
affect the wear rate of the tires.
Treadwear indicators are one way to
tell when it is time for new tires.
Treadwear indicators appear when
the tires have only 1.6 mm (1/16 in)
or less of tread remaining. Some
commercial truck tires may not have
treadwear indicators. See Tire
Inspection on page 10-60 andTire
Rotation on page 10-60 for
additional information.
The rubber in tires ages over time.
This also applies to the spare tire,
if the vehicle has one, even if it is
never used. Multiple factors
including temperatures, loading
conditions, and inflation pressure

Black plate (3,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
Service and Maintenance 11-3
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.
SeeEngine Oil Life System on
page 10-10.
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 10-60.
.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 10-7 andEngine Oil
Life System on page 10-10.
.Check engine coolant level. See
Engine Coolant on page 10-16.
.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 10-88. Replace
worn or damaged wiper blades.
See Wiper Blade Replacement
on page 10-29.
.Check tire inflation pressures.
See Tire Pressure on
page 10-53.
.Inspect tire wear. See Tire
Inspection on page 10-60.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter on
page 10-14.
.Inspect brake system. See
Exterior Care on page 10-88.
.Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear
at least once a year. See
Exterior Care on page 10-88.
Lubricate the suspension and
steering components at least
every other oil change.
(If equipped with grease fittings)
.Check restraint system
components. See Safety System
Check on page 3-28.
.Visually inspect fuel system for
damage or leaks.
.Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
.Lubricate body components. See
Exterior Care on page 10-88.
.Check starter switch. See Starter
Switch Check on page 10-28.