
Low Tire Message
Your vehicle may have the check tire pressure system
which can alert you to a large change in the pressure
of one tire. After the system has been properly
calibrated, the low tire pressure message will come on
and a chime will sound if a pressure difference, or
low pressure, is detected in one tire.
The message will stay on until you turn off the ignition
or reset (calibrate) the system. SeeCheck Tire Pressure
System on page 5-65.
If the anti-lock brake system warning light comes on,
the check tire pressure system may not be working
properly. See your dealer for service. Also, see
Anti-Lock Brake System Warning Light on page 3-45.
Door Ajar Warning Message
This message will come on when the ignition is turned
to ON or START and the driver’s or passenger’s door
is open.
Rear Hatch Ajar Warning Message
This message will come on when the ignition is turned
to ON or START and the liftgate is open. United States
CanadaUnited StatesCanada
United StatesCanada
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FUEL USED:The fuel used display will show you how
much fuel has been used since the last time it was
reset. To reset the fuel used to zero, press and hold the
SET button while the fuel used is displayed on the
DIC and until the display goes to zero.
AVG SPEED (Average Speed):The average speed
display will show your average speed from when
you rst started your vehicle. To reset the average
speed, press and hold the SET button while the average
speed is displayed on the DIC and until the speed
resets to your current speed.
OIL LIFE LEFT HOLD SET TO RESET:This message
displays the current percentage of the GM Oil Life
System. Be careful not to reset this display other than
when the oil has been changed. See “How to Reset the
System” underEngine Oil on page 5-14for more
information.TIRE PRESSURE:The check tire pressure system can
alert you to a large change in the pressure of one
tire. You must begin driving before the system will detect
a low tire pressure. SeeCheck Tire Pressure System
on page 5-65.
USE SET TO SELECT ENGLISH METRIC:You can
use this display to select English or metric. Press
the SET button to toggle between English or metric. The
DIC, the odometer, the trip odometer and head-up
display will change. A Canadian odometer and
trip odometer will remain in metric units only.
OFF:No driver information will be displayed in this
mode. If the DIC is left in this mode for more than three
seconds, the display will turn off. Press the MODE
button to start the DIC.
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When to Check
Check your tires once a month or more.
Don’t forget your compact spare tire. It should be at
60 psi (420 kPa).
How to Check
Use a good quality pocket-type gage to check tire
pressure. You can’t tell if your tires are properly in ated
simply by looking at them. Radial tires may look
properly in ated even when they’re underin ated. Check
the tire’s in ation pressure when the tires are cold.
Cold means your vehicle has been sitting for at least
three hours or driven no more than 1 mile (1.6 km).
Remove the valve cap from the tire valve stem. Press
the tire gage rmly onto the valve to get a pressure
measurement. If the cold tire in ation pressure matches
the recommended pressure on the Tire and Loading
Information label, no further adjustment is necessary. If
the in ation pressure is low, add air until you reach
the recommended amount.
If you over ll the tire, release air by pushing on the
metal stem in the center of the tire valve. Recheck the
tire pressure with the tire gage.
Be sure to put the valve caps back on the valve stems.
They help prevent leaks by keeping out dirt and
moisture.
Check Tire Pressure System
Your vehicle may have a check tire pressure system
that can alert you to a large change in the pressure of
one tire. The system won’t alert you before you drive
that a tire is low or at. You must begin driving before
the system will work properly.
The LOW TIRE PRESSURE HOLD SET TO RESET
message will appear on the Driver Information Center
(DIC) and the LOW TIRE PRESSURE message
will come on the message center if pressure difference,
or low pressure, is detected in one tire. In the following
conditions, the LOW TIRE PRESSURE message
may not come on even if the tire pressure is low, or it
may come on when the tire pressure is actually normal:
More than one tire is low
Only one tire is replaced with a new tire during
service
The vehicle is moving faster than 70 mph
(113 km/h)
The system is not yet calibrated
The tire treadwear is uneven
The compact spare tire is installed
Tire chains are being used
The vehicle is being driven on a rough or frozen road
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If the anti-lock brake system warning light comes on,
the check tire pressure system may not be working
properly. See your dealer for service. Also, see
Anti-Lock Brake System Warning Light on page 3-45.
The check tire pressure system detects differences in tire
rotation speeds that are caused by changes in tire
pressure. The system can alert you about a low tire – but
it does not replace normal tire maintenance. SeeTires on
page 5-57.
When the LOW TIRE PRESSURE HOLD SET TO
RESET message appears on the Driver Information
Center and the LOW TIRE PRESSURE message comes
on the message center, you should stop as soon as
you can and check all your tires for damage. If a tire is
at, seeIf a Tire Goes Flat on page 5-76. Also check
the tire pressure in all four tires as soon as you can. See
In ation - Tire Pressure on page 5-64.Any time you adjust a tire’s pressure or have one or more
tires repaired or replaced, you’ll need to reset, or
calibrate, the check tire pressure system. You’ll also need
to reset the system whenever you rotate the tires, buy
new tires and install or remove the compact spare.
Do not reset the check tire pressure system without rst
correcting the cause of the problem and checking
and adjusting the pressure in all four tires. If you reset
the system when the tire pressures are incorrect,
the check tire pressure system will not work properly
and may not alert you when a tire is low or high.
To reset the system, do the following:
1. With the engine off, turn the ignition to ON.
2. Press the MODE button until the DIC reads LOW
TIRE PRESSURE HOLD SET TO RESET.
3. Press and hold the SET button until you hear a
chime, and TIRE PRESSURE RESET is displayed.
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You will hear three chimes, then the LOW TIRE
PRESSURE message will go off and the DIC will return
to TIRE PRESSURE NORMAL. If the LOW TIRE
PRESSURE message comes back on, the check tire
pressure system has not reset. Repeat the procedure.
The system completes the calibration process during
driving. The system learns the pressure at each tire
throughout the operating speed range of your vehicle.
The system normally takes between 30 and 60 minutes of
driving to learn the tire pressures. The system normally
takes 10 to 20 minutes of driving in each speed range to
learn tire pressures. The speed ranges are 20 to 40 mph
(32 to 64 km/h), 40 to 60 mph (64 to 96 km/h), and above
60 mph (96 km/h). This time may be longer depending on
your individual driving habits. The learning process does
not need to be completed during a single trip. Once
learned, the system will remember the tire pressure until
the system is reset.Tire Inspection and Rotation
Tires should be rotated every 5,000 to 8,000 miles
(8 000 to 13 000 km).
Any time you notice unusual wear, rotate your tires as
soon as possible and check wheel alignment. Also
check for damaged tires or wheels. SeeWhen It Is Time
for New Tires on page 5-69andWheel Replacement
on page 5-72for more information.
Make sure the spare tire is stored securely. Push, pull,
and then try to rotate or turn the tire, If it moves,
use the folding wrench to tighten the cable. See “Storing
a Flat or Spare Tire and Tools” inChanging a Flat
Tire on page 5-77.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The rst rotation
is the most important. SeeScheduled Maintenance
on page 6-4, for scheduled rotation intervals.
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When rotating your tires, always use the correct rotation
pattern shown here.
Don’t include the compact spare tire in your tire rotation.
After the tires have been rotated, adjust the front and
rear in ation pressures as shown on the
Certi cation/Tire label or the Tire and Loading
Information label.
Reset the check tire pressure system, if equipped. See
Check Tire Pressure System on page 5-65.
Make certain that all wheel nuts are properly tightened.
See “Wheel Nut Torque” underCapacities and
Speci cations on page 5-115.
{CAUTION:
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after a time. The wheel could
come off and cause an accident. When you
change a wheel, remove any rust or dirt from
places where the wheel attaches to the vehicle.
In an emergency, you can use a cloth or a
paper towel to do this; but be sure to use a
scraper or wire brush later, if you need to, to
get all the rust or dirt off. See “Changing a Flat
Tire” in the Index.
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