Speedometer and Odometer
Your speedometer lets you see your speed in both
miles per hour (mph) and kilometers per hour (km/h).
Your odometer shows how far your vehicle has
been driven, in either miles or kilometers.
Your vehicle has a tamper-resistant odometer. You may
wonder what happens if your vehicle needs a new
odometer installed. If the new one can be set to the
mileage total of the old odometer, then that will be done.
If it can’t, it will be set at zero and a label must be put
on the driver’s door to show the old mileage reading
when the new odometer was installed. If the mileage is
unknown, the label should then indicate “previous
mileage unknown”.
Trip Odometer
Your trip odometer is located on the instrument panel
and shows how far your vehicle has been driven
since the trip odometer was last reset. To reset the
trip odometer to zero, press and hold the trip/reset
button on the speedometer for about two seconds.
Press the trip/reset button to switch between the
trip odometer and odometer.
Tachometer
The tachometer displays the engine speed in revolutions
per minute (rpm).
Notice:If you operate the engine above 6,300 rpm,
your vehicle could be damaged, and the damages
would not be covered by your warranty. Do not
operate the engine with the tachometer above
6,300 rpm.
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Your vehicle has an airbag system. Before attempting
to do your own service work, seeServicing Your
Airbag-Equipped Vehicle on page 1-72.
You should keep a record with all parts receipts and
list the mileage and the date of any service work
you perform. SeeMaintenance Record on page 6-17.
Adding Equipment to the Outside
of Your Vehicle
Things you might add to the outside of your vehicle
can affect the air ow around it. This may cause
wind noise and affect windshield washer performance.
Check with your retailer before adding equipment to
the outside of your vehicle.
Fuel
Use of the recommended fuel is an important part of
the proper maintenance of your vehicle.
Gasoline Octane
Use regular unleaded gasoline with a posted octane
rating of 87 or higher. If the octane rating is less than 87,
you may notice an audible knocking noise when you
drive, commonly referred to as spark knock. If this
occurs, use a gasoline rated at 87 octane or higher as
soon as possible. If you are using gasoline rated at
87 octane or higher and you hear heavy knocking,
your engine needs service.
Gasoline Speci cations
At a minimum, gasoline should meet ASTM
speci cation D 4814 in the United States or
CAN/CGSB-3.5 in Canada. Some gasolines may
contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT).
General Motors recommends against the use of
gasolines containing MMT. SeeAdditives on page 5-6
for additional information.
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