2010 HUMMER H3 oil reset

1-18 In Brief
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.
Resetting the Oil Life System
1. Turn the ignition to ON/RUN,with the engine off.
2. Press and release the stem in the lower center of the
instrument cluster until the
“Oil Life” message is displayed.
3. Once the alternating “Oil Life”
and “Reset” messages appear,
press and hold the stem
until several beeps sound.
This confirms that the oil life
system has been reset.
4. Turn the key to LOCK/OFF.
See Engine Oil Life System
on
page 10‑11.
Fuel E85 (85% Ethanol)
Vehicles that have the
5.3L V8 engine (Code P) have
a yellow fuel cap and can use either
unleaded gasoline or ethanol fuel
containing up to 85% ethanol (E85).
See Fuel E85 (85% Ethanol)
on
page 9‑66. In all other engines,
use only the unleaded gasoline
described under Recommended
Fuel on page 9‑64.
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, if equipped.
.Always follow posted speed
limits or drive more slowly when
conditions require.
.Keep vehicle tires properly
inflated.
.Combine several trips into a
single trip.
.Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.Follow recommended scheduled
maintenance.

Instruments and Controls 5-19
Engine Oil Life System
With the engine off, turn the key
to ON/RUN and then press the
reset stem until OIL LIFE RESET
appears—alternating between
OIL LIFE and RESET —on the DIC
display. The CHANGE OIL message
alerts you to change the oil on a
schedule consistent with your
driving conditions. Always reset
the OIL LIFE message after an
oil change. To reset the message,
see Engine Oil Life System
on
page 10‑11.
In addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended in the Maintenance
Schedule in this manual. See
Engine Oil
on page 10‑9and
Scheduled Maintenanceon
page 11‑2for more information.
Language
This feature allows you to choose
the language in which the DIC
display shows information.
To set your choice for this feature:
1. With the engine off, turn the key to ON/RUN, but do not start the
engine.
2. Close all doors so the DOORS message does not display in
the DIC.
3. Momentarily press and release the reset stem until the current
language is displayed: English
(default), Spanish, or French.
4. To select a different language, press and hold the reset stem
until the next language appears. 5. Repeat Step 4 until the desired
language is displayed. Once the
desired language is shown on
the DIC display, the language
is set.
6. To exit the language selection, momentarily press and release
the reset stem. All DIC
messages will now display in
the language selected.
Automatic Door Locks
This feature allows you to program
the door locks to a preferred setting.
To set your choice for this feature:
1. With the engine off, turn the keyto LOCK/OFF. Do not remove
the key from the ignition.
2. Press and hold the power door lock button until the DIC display
shows the current door
lock mode.

Instruments and Controls 5-23
Engine Cooling System
Messages
AC (Air Conditioning) OFF
This message displays when the
engine coolant temperature is too
high and the air conditioning in
the vehicle needs to be turned off.
SeeEngine Overheating
on
page 10‑22and Climate Control
Systemson page 8‑1for more
information. This message displays
along with the ENG HOT message.
ENG (Engine) HOT
This message displays when the
engine coolant temperature is
hot. Check the engine coolant
temperature gauge. See Engine
Coolant Temperature Gauge
on
page 5‑9. Have the vehicle
serviced by your dealer as soon
as possible if you suspect the
engine is overheating. See Engine
Overheating
on page 10‑22for more
information.
Engine Oil Messages
CHANGE OIL
This message displays when the
oil needs to be changed. Check
the oil in the vehicle as soon as
possible and have the vehicle
serviced by your dealer. See Engine
Oil
on page 10‑9and Scheduled
Maintenanceon page 11‑2for
more information. Press and release
the reset stem to acknowledge the
message and clear it from the
display.
OIL
This message displays when the oil
pressure is low. See Engine Oil
Pressure Light
on page 5‑17and
Engine Oilon page 10‑9for more
information.
Engine Power Messages
REDUCED POWER
This message 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 this
message stays on, the vehicle
should be taken to your dealer
for service as soon as possible.
Press and release the reset stem
to acknowledge the message and
clear it from the display.

Vehicle Care 10-11
Cold Temperature Operation
If in an area of extreme cold, where
the temperature falls below−29°C
(−20°F), use either an SAE 5W-30
synthetic oil or an SAE 0W-30
engine oil. Both provide easier
cold starting for the engine at
extremely low temperatures. Always
use an oil that meets the required
specification, GM6094M. See “What
Kind of Engine Oil to Use” for more
information.
Engine Oil Additives / Engine
Oil Flushes
Do not add anything to the oil.
The recommended oils with the
starburst symbol that meet GM
standards are all that is needed
for good performance and engine
protection.
Engine oil system flushes are not
recommended and could cause
engine damage not covered by the
vehicle warranty.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and filter. This is based
on engine revolutions and engine
temperature, and not on mileage.
Based on driving conditions, the
mileage at which an oil change is
indicated can vary considerably. For
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 Oil”
message comes on. See Engine Oil
Messages
on page 5‑23. Change
the oil as soon as possible within
the next 1 000 km (600 miles). It is
possible that, if 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 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 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, the oil must be
changed at 5 000 km (3,000 miles)
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
The Engine Oil Life System
calculates when to change the
engine oil and filter 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 the oil is changed prior to a
change engine oil message being
turned on, reset the system.

10-12 Vehicle Care
After changing the engine oil, reset
the system:
1. Turn the ignition key to ON/RUNwith the engine off.
2. Press and release the stem in the lower center of the
instrument cluster until the OIL
LIFE message is displayed.
3. Once the alternating “Oil Life”
and “Reset” messages appear,
press and hold the stem until
several beeps sound. This
confirms that the oil life system
has been reset.
4. Turn the key to LOCK/OFF.
If the “Change Oil” message
comes on again and stays on for
30 seconds at the next ignition
cycle, it did not reset. The system
needs to be reset again.What to Do with Used Oil
Used engine oil contains certain
elements that can be unhealthy for
your skin and could even cause
cancer. Do not let used oil stay on
your skin for very long. Clean your
skin and nails with soap and water,
or a good hand cleaner. Wash or
properly dispose of clothing or rags
containing used engine oil. See the
manufacturer's warnings about the
use and disposal of oil products.
Used oil can be a threat to the
environment. If you change your
own oil, be sure to drain all the oil
from the filter before disposal. Never
dispose of oil by putting it in the
trash, pouring it on the ground, into
sewers, or into streams or bodies of
water. Recycle it by taking it to a
place that collects used oil.
Automatic Transmission
Fluid
When to Check and Change
Automatic Transmission Fluid
A good time to check the automatic
transmission fluid level is when the
engine oil is changed.
Change the fluid and filter at the
intervals listed in Scheduled
Maintenance
on page 11‑2, and be
sure to use the transmission fluid
listed in Recommended Fluids and
Lubricants on page 11‑8.
How to Check Automatic
Transmission Fluid
Because this operation can be a
little difficult, you may choose to
have this done at the dealer service
department.
If adding it yourself, be sure to
follow all the instructions here,
or there could be a false reading on
the dipstick.

11-2 Service and Maintenance
.Are driven off-road in the
recommended manner. See
Off-Road Driving on page 9‑7.
.Use the recommended fuel.
SeeRecommended Fuelon
page 9‑64.
{WARNING
Performing maintenance work can
be dangerous. Some jobs can
cause serious injury. Perform
maintenance work only if you
have the required know-how and
the proper tools and equipment.
If in doubt, see your dealer to
have a qualified technician do
the work. See Doing Your Own
Service Work on page 10‑4.
At your dealer/retailer, you can be
certain that you will receive the
highest level of service available. Your dealer/retailer has specially
trained service technicians, uses
genuine replacement parts, as
well as, up to date tools and
equipment to ensure fast and
accurate diagnostics.
The proper replacement parts,
fluids, and lubricants to use
are listed in
Recommended Fluids
and Lubricantson page 11‑8and
Maintenance Replacement Partson
page 11‑10. We recommend the
use of genuine parts from your
dealer/retailer.
Rotation of New Tires
To maintain ride, handling, and
performance of the vehicle, it is
important that the first rotation
service for new tires be performed
when they have 8 000 to 13 000 km
(5,000 to 8,000 miles). See Tire
Rotation on page 10‑57.
Scheduled
Maintenance
When the Change Oil Message
Displays
Change engine oil and filter. See
Engine Oilon page 10‑9. An
Emission Control Service.
When the “Change Oil” message
displays, service is required for
the vehicle as soon as possible,
within the next 1 000 km/600 miles.
If driving under the best conditions,
the engine oil life system might not
indicate the need for vehicle service
for more than a year. The engine
oil and filter must be changed at
least once a year and the oil life
system must be reset. Your dealer
has trained service technicians who
will perform this work and reset the
system. If the engine oil life system
is reset accidentally, service the
vehicle within 5 000 km/3,000 miles
since the last service. Reset the oil

11-6 Service and Maintenance
ServiceMaintenanceIMaintenance
II
Change engine oil and filter. Reset oil life system. ••
Engine coolant level check. ••
Windshield washer fluid level check. ••
Tire inflation pressures check. ••
Tire wear inspection. ••
Rotate tires. ••
Fluids visual leak check. ••
Engine air cleaner filter inspection (vehicles driven in dusty conditions only). ••
Brake system inspection. ••
Body components lubrication. •
Steering and suspension inspection. •