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. Press the TRIP button so the OIL LIFE percentageis displayed.
2. Press RESET and hold for two seconds. OIL LIFE REMAINING 100% will appear.
See Engine Oil Life System on page 6‑25.
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.
Premium Fuel
This vehicle's engine was designed to use premium
unleaded gasoline. See Gasoline Octane on page 6‑7.
Battery
This vehicle has a maintenance free battery. See
Batteryon page 6‑49and Jump Starting on page 6‑50.
For ZO6, ZR1, and Grand Sport models the battery is
located in the rear hatch/trunk area. Access to the
battery is not necessary to jump start the vehicle.
There are positive (+) and negative (−) terminals in
the engine compartment.
1-24
Tire and Loading Information Label
Label Example
A vehicle specific Tire and Loading Information
label is attached to the center pillar (B-pillar) of
your vehicle. With the driver's door open, you
will find the label attached below the door latch.
This label shows the number of occupant seating
positions (A), and the maximum vehicle capacity
weight (B) in kilograms and pounds. The Tire and Loading Information label also
shows the size of the original equipment tires (C)
and the recommended cold tire inflation
pressures (D). For more information on tires and
inflation see
Tires
on page 6‑62andInflation - Tire
Pressure
on page 6‑70.
There is also important loading information on the
vehicle Certification label. It tells you the Gross
Vehicle Weight Rating (GVWR) and the Gross
Axle Weight Rating (GAWR) for the front and rear
axle. See “Certification Label” later in this section.
Steps for Determining Correct Load Limit
1.Locate the statement “The combined weight
of occupants and cargo should never exceed
XXX kg or XXX lbs” on your vehicle's placard.
2.Determine the combined weight of the
driver and passengers that will be riding in
your vehicle.
3.Subtract the combined weight of the driver
and passengers from XXX kg or XXX lbs.
5-29
Section 6 Service and Appearance Care
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-69
Inflation - Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . 6-70
High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . . 6-72
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . 6-72
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . 6-74
Tire Inspection and Rotation . . . . . . . . . . . . . . . . . . . 6-76
When It Is Time for New Tires . . . . . . . . . . . . . . . . . 6-76
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-77
Different Size Tires and Wheels . . . . . . . . . . . . . . . 6-79
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 6-79
Wheel Alignment and Tire Balance . . . . . . . . . . . . 6-81
Wheel Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-81
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-84
Lifting the Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-84
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-89
Appearance Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-90
Interior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-90
Fabric/Carpet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-91
Coated Moldings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-92
Leather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-92
Instrument Panel, Vinyl, and Other Plastic Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-93
Cargo Cover and Convenience Net . . . . . . . . . . . . 6-93
Care of Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-93
Weatherstrips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-93
Washing Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 6-94 Cleaning Exterior Lamps/Lenses . . . . . . . . . . . . . . 6-94
Finish Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-95
Windshield and Wiper Blades . . . . . . . . . . . . . . . . . . 6-96
Removable Roof Panel . . . . . . . . . . . . . . . . . . . . . . . . 6-96
Convertible Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-97
Aluminum or Chrome-Plated Wheels
and Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-97
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98
Finish Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98
Underbody Maintenance . . . . . . . . . . . . . . . . . . . . . . . 6-98
Fiberglass Springs (Composite Springs) . . . . . . . 6-99
Chemical Paint Spotting . . . . . . . . . . . . . . . . . . . . . . . 6-99
Vehicle Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-99
Vehicle Identification Number (VIN) . . . . . . . . . . . . 6-99
Service Parts Identification Label . . . . . . . . . . . . . 6-100
Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-100
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . 6-100
Headlamp Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-100
Windshield Wiper Fuses . . . . . . . . . . . . . . . . . . . . . . 6-100
Power Windows and Other Power Options . . . 6-100
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . 6-101
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . 6-101
Engine Compartment Fuse Block . . . . . . . . . . . . . 6-104
Capacities and Specifications . . . . . . . . . . . . . . . . . . 6-108
6-2
Low‐Profile Performance Tire
The original equipment tires on your vehicle are
classified as low‐profile performance tires. These
tires are designed for very responsive driving on
wet or dry pavement. You may also notice more
road noise with low‐profile tires and that they tend
to wear faster.
Notice:If the vehicle has low‐profile tires, they
are more susceptible to damage from road
hazards or curb impact than standard profile
tires. Tire and/or wheel assembly damage can
occur when coming into contact with road
hazards like, potholes, or sharp edged objects,
or when sliding into a curb. The vehicle
warranty does not cover this type of damage.
Keep tires set to the correct inflation pressure
and, when possible avoid contact with curbs,
potholes, and other road hazards.
Winter Tires
If you expect to drive on snow or ice covered roads
often, you may want to get winter tires for your vehicle.
All season tires provide good overall performance on
most surfaces but they may not offer the traction you
would like or the same level of performance as winter
tires on snow or ice covered roads. Winter tires, in general, are designed for increased
traction on snow and ice covered roads. With winter
tires, there may be decreased dry road traction,
increased road noise, and shorter tread life. After
switching to winter tires, be alert for changes in
vehicle handling and braking.
See your dealer/retailer for details regarding winter tire
availability and proper tire selection. Also, see
Buying
New Tires on page 6‑77.
If you choose to use winter tires:
.Use tires of the same brand and tread type on all
four wheel positions.
.Use only radial ply tires of the same size, load
range, and speed rating as the original equipment
tires.
Winter tires with the same speed rating as your original
equipment tires may not be available for H, V, W, Y, and
ZR speed rated tires. If you choose winter tires with a
lower speed rating, never exceed the tire's maximum
speed capability.
6-63
Tire Sidewall Labeling
Useful information about a tire is molded into its
sidewall. The example below shows a typical
passenger (p‐metric) tire sidewall.
Passenger (P‐Metric) Tire Example
(A) Tire Size:The tire size is a combination of
letters and numbers used to define a particular
tire's width, height, aspect ratio, construction type,
and service description. See the “Tire Size”
illustration later in this section for more detail. (B) TPC Spec (Tire Performance Criteria
Specification)
:Original equipment tires designed
to GM's specific tire performance criteria have a
TPC specification code molded onto the sidewall.
GM's TPC specifications meet or exceed all
federal safety guidelines.
(C) DOT (Department of Transportation)
:
The Department of Transportation (DOT) code
indicates that the tire is in compliance with the
U.S. Department of Transportation Motor Vehicle
Safety Standards.
(D) Tire Identification Number (TIN)
:The letters
and numbers following DOT code are the Tire
Identification Number (TIN). The TIN shows the
manufacturer and plant code, tire size, and date
the tire was manufactured. The TIN is molded
onto both sides of the tire, although only one
side may have the date of manufacture.
(E) Tire Ply Material
:The type of cord and
number of plies in the sidewall and under the
tread.
6-64
(F) Uniform Tire Quality Grading (UTQG):Tire
manufacturers are required to grade tires based
on three performance factors: treadwear, traction
and temperature resistance. For more information
see Uniform Tire Quality Grading
on page 6‑79.
(G) Maximum Cold Inflation Load Limit
:
Maximum load that can be carried and the
maximum pressure needed to support that load.
Tire Size
The following illustration shows an example of a
typical passenger (p‐metric) vehicle tire size.
(A) Passenger (P‐Metric) Tire:The United
States version of a metric tire sizing system.
The letter P as the first character in the tire size
means a passenger vehicle tire engineered
to standards set by the U. S. Tire and Rim
Association. (B) Tire Width
:The three‐digit number indicates
the tire section width in millimeters from sidewall
to sidewall.
(C) Aspect Ratio
:A two‐digit number that
indicates the tire height‐to‐width measurements.
For example, if the tire size aspect ratio is 60, as
shown in item C of the illustration, it would mean
that the tire's sidewall is 60 percent as high as it
is wide.
(D) Construction Code
:A letter code is used
to indicate the type of ply construction in the tire.
The letter R means radial ply construction; the
letter D means diagonal or bias ply construction;
and the letter B means belted‐bias ply
construction.
(E) Rim Diameter
:Diameter of the wheel in
inches.
(F) Service Description
:These characters
represent the load index and speed rating of the
tire. The load index represents the load carry
capacity a tire is certified to carry. The speed
rating is the maximum speed a tire is certified
to carry a load.
6-65
Radial Ply Tire:A pneumatic tire in which the
ply cords that extend to the beads are laid at
90 degrees to the centerline of the tread.
Rim
:A metal support for a tire and upon which
the tire beads are seated.
Sidewall
:The portion of a tire between the tread
and the bead.
Speed Rating
:An alphanumeric code assigned
to a tire indicating the maximum speed at which a
tire can operate.
Traction
:The friction between the tire and the
road surface. The amount of grip provided.
Tread
:The portion of a tire that comes into
contact with the road.
Treadwear Indicators
:Narrow bands, sometimes
called wear bars, that show across the tread
of a tire when only 1/16 inch (1.6 mm) of tread
remains. See When It Is Time for New Tires
on
page 6‑76
. UTQGS (Uniform Tire Quality Grading
Standards)
:A tire information system that
provides consumers with ratings for a tire's
traction, temperature, and treadwear. Ratings
are determined by tire manufacturers using
government testing procedures. The ratings are
molded into the sidewall of the tire. See Uniform
Tire Quality Grading
on page 6‑79.
Vehicle Capacity Weight
:The number of
designated seating positions multiplied by 150 lbs
(68 kg) plus the rated cargo load. See Loading the
Vehicle
on page 5‑28.
Vehicle Maximum Load on the Tire
:Load on an
individual tire due to curb weight, accessory
weight, occupant weight, and cargo weight.
Vehicle Placard
:A label permanently attached
to a vehicle showing the vehicle's capacity
weight and the original equipment tire size and
recommended inflation pressure. See “Tire and
Loading Information Label” underLoading the
Vehicle
on page 5‑28.
6-68
High-Speed Operation
{WARNING:
Driving at high speeds, 160 km/h (100 mph)
or higher, puts an additional strain on tires.
Sustained high-speed driving causes excessive
heat build up and can cause sudden tire failure.
You could have a crash and you or others could
be killed. Some high-speed rated tires require
inflation pressure adjustment for high speed
operation. When speed limits and road conditions
are such that a vehicle can be driven at high
speeds, make sure the tires are rated for high
speed operation, in excellent condition, and set
to the correct cold tire inflation pressure for the
vehicle load.
If you will be driving your vehicle at speeds of
175 mph (282 km/h) or higher, where it is legal,
set the cold inflation pressure to the maximum inflation
pressure shown on the tire sidewall, or 38 psi (265 kPa),
whichever is lower. See the example following. When
you end this high-speed driving, return the tires to the
cold inflation pressure shown on the Tire and Loading
Information label. See Loading the Vehicle
on
page 5‑28. Example:
You will find the maximum load and inflation pressure
molded on the tire's sidewall, in small letters, near the
rim flange. It will read something like this: Maximum
load 690 kg (1521 lbs) 300 kPa (44 psi) Max. Press.
For this example, you would set the inflation pressure
for high‐speed driving at 38 psi (265 kPa).
Racing or other competitive driving may affect the
warranty coverage of your vehicle. See your warranty
booklet for more information.
Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses radio
and sensor technology to check tire pressure levels.
The TPMS sensors monitor the air pressure in your
vehicle's tires and transmit tire pressure readings to a
receiver located in the vehicle.
Each tire, including the spare (if provided), should be
checked monthly when cold and inflated to the inflation
pressure recommended by the vehicle manufacturer
on the vehicle placard or tire inflation pressure label.
(If your vehicle has tires of a different size than the size
indicated on the vehicle placard or tire inflation pressure
label, you should determine the proper tire inflation
pressure for those tires.)
6-72