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Driving and Operating 219
Drive the vehicle. Ifdcomes on and stays
on, the vehicle may need more time to
diagnose the problem. If the condition
persists, see your dealer.
Turning the Systems Off and On
Caution
Do not repeatedly brake or accelerate
heavily when TCS is off. The vehicle
driveline could be damaged. To turn off only TCS, press and release
Y.
The traction off light
idisplays in the
instrument cluster.
To turn TCS on again, press
Y. The traction
off light
idisplayed in the instrument
cluster will turn off.
If TCS is limiting wheel spin when
Yis
pressed, the system will not turn off until
the wheels stop spinning.
To turn off both TCS and StabiliTrak/ESC,
press and hold
Yuntil the traction off
light
iand StabiliTrak/ESC OFF lightg
come on and stay on in the instrument
cluster.
To turn TCS and StabiliTrak/ESC on again,
press
Y. The traction off lightiand
StabiliTrak/ESC OFF light
gin the
instrument cluster turn off.
Adding accessories can affect the vehicle
performance. See Accessories and
Modifications 0240.
Engine Drag Control (EDC)
EDC improves vehicle stability by sensing if
there is a difference in speed between the
free rolling front wheels and the rear drive
wheels that often occurs when the driver
takes their foot off the accelerator pedal on
slippery surfaces (snow, ice, etc.). When this
is detected, EDC sends more torque to the
rear wheels to make sure all four wheels are
spinning at similar speeds, making the
vehicle more stable.
Driver Mode Control
Driver Mode Control adds a sportier feel,
provides a more comfortable ride, or assists
in different weather conditions or terrain.
This system simultaneously changes the
software calibration of various sub-systems
to optimize driving performance. Depending
on the option package, available features,
and mode selected, the exhaust, suspension,
steering, and powertrain will change
calibrations to achieve the desired mode
characteristics. If the vehicle is equipped
with Magnetic Ride Control, selecting the
various Driver Modes adjusts the ride of the
vehicle to enhance the ride performance for
the road conditions and the selected mode.
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Driving and Operating 223
Launch Control (when in Competitive
Driving Mode)
Available only in Sport and Track Modes for
maximum“off-the-line” acceleration when in
Competitive Driving Mode.
For more information, see Track Events and
Competitive Driving 0188.
Competitive Driving Mode (SS,
ZL1 and 1LE Models Only)
Competitive Driving Mode and Launch
Control are systems designed to allow
increased performance while accelerating
and/or cornering. This is accomplished by
regulating and optimizing the engine,
brakes, and suspension performance. These
modes are for use at a closed course race
track and are not intended for use on public
roads. They will not compensate for a
driver’s inexperience or lack of familiarity
with the race track. Drivers who prefer to
allow the system to have more control of
the engine, brakes, and suspension are
advised to turn the normal TCS and
StabiliTrak/Electronic Stability Control (ESC)
systems on.
Caution
Attempting to shift when the drive
wheels are spinning and do not have
traction may cause damage to the
transmission. Damage caused by misuse
of the vehicle is not covered by the
vehicle warranty. Do not attempt to shift
when the drive wheels do not have
traction.
Competitive Driving Mode allows full engine
power while the StabiliTrak/ESC system
helps maintain directional control of the
vehicle by selective brake application. In this
mode, TCS is off and Launch Control is
available. Adjust your driving style to
account for the available engine power. See
“Launch Control” later in this section.
These lights are on when the vehicle is in
the Competitive Driving Mode.
This optional handling mode can be selected
by pressing the TCS/StabiliTrak/ESC button
on the console two times. The appropriate
message displays in the Driver Information
Center (DIC).
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224 Driving and Operating
When the TCS/StabiliTrak/ESC button is
pressed again, the TCS and StabiliTrak/ESC
systems are on. The appropriate message
displays briefly in the DIC.
Launch Control
If the vehicle has the LT1 10 speed
transmission, seeTrack Events and
Competitive Driving 0188 for custom launch
control information.
A Launch Control feature is available, within
Competitive Driving Mode, to allow the
driver to achieve high levels of vehicle
acceleration in a straight line. Launch
Control is a form of traction control that
manages tire spin while launching the
vehicle. This feature is intended for use
during closed course race events where
consistent zero to sixty and quarter mile
times are desirable.
Launch Control is only available when the
following criteria are met:
.Competitive Driving Mode is selected.
.The vehicle is not moving.
.The steering wheel is pointing straight. Manual Transmissions
.The clutch is pressed to floor and the
vehicle is in 1 (First) gear.
.The accelerator pedal is rapidly applied to
wide open throttle.
The Launch Control feature will initially limit
engine speed as the driver rapidly applies
the accelerator pedal to wide open throttle.
Allow the engine rpm to stabilize. A smooth,
quick release of the clutch, while
maintaining the fully pressed accelerator
pedal, will manage wheel slip. Complete
shifts are described in Manual Transmission
0 213.
Automatic Transmissions
.The brake pedal must be firmly pressed
to the floor, equivalent to a panic brake
event.
.The accelerator pedal is rapidly applied to
wide open throttle. (If the vehicle rolls
due to wide open throttle, release the
throttle, press the brake pedal more
firmly, and re-apply the accelerator to
wide open throttle.)
After the vehicle is launched, the system
continues in Competitive Driving Mode. Competitive Driving Mode and Launch
Control are systems designed for a closed
course race track and not intended for use
on public roads. The systems are not
intended to compensate for lack of driver
experience or familiarity with the race track.
Limited-Slip Rear Axle
Vehicles with a limited-slip rear axle can
give more traction on snow, mud, ice, sand,
or gravel. When traction is low, this feature
allows the drive wheel with the most
traction to move the vehicle. The limited-slip
rear axle also gives the driver enhanced
control when cornering hard or completing a
maneuver, such as a lane change. For
vehicles with limited-slip differential, driven
under severe conditions, the rear axle fluid
should be changed. See
Competitive Driving
Mode (SS, ZL1 and 1LE Models Only) 0223
and
Maintenance Schedule 0310.
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Driving and Operating 225
Cruise Control
When using cruise control, the vehicle can
maintain a speed of about 40 km/h (25 mph)
or more without keeping your foot on the
accelerator. Cruise control does not work at
speeds below 40 km/h (25 mph).
{Warning
Cruise control can be dangerous where
you cannot drive safely at a steady
speed. Do not use cruise control on
winding roads or in heavy traffic.
Cruise control can be dangerous on
slippery roads. On such roads, fast
changes in tire traction can cause
excessive wheel slip, and you could lose
control. Do not use cruise control on
slippery roads.
If equipped with a manual transmission, the
cruise control will remain active when the
gears are shifted. The cruise is disengaged if
the clutch is pressed for several seconds.
If the StabiliTrak/Electronic Stability Control
(ESC) system begins to limit wheel spin
while using cruise control, the cruise control automatically disengages. See
Traction
Control/Electronic Stability Control 0218.
When road conditions allow you to safely
use it again, cruise control can be turned
back on.
Cruise control will disengage if either TCS or
StabiliTrak/ESC is turned off.
Cruise control is not available when using
Competitive Driving Mode, if equipped. See
Competitive Driving Mode (SS, ZL1 and 1LE
Models Only) 0223.
If the brakes are applied, cruise control
disengages.
Cruise Control with Cancel Button
Cruise Control without Cancel Button
1: Press to turn the system on and off.
A white indicator appears in the instrument
cluster when cruise is turned on.
*: If equipped, press to disengage cruise
control without erasing the set speed from
memory.
RES+ : If there is a set speed in memory,
press briefly to resume to that speed or
hold upward to accelerate. If cruise control
is already active, use to increase vehicle
speed.
SET− :Press briefly to set the speed and
activate cruise control. If cruise control is
already active, use to decrease speed.
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230 Driving and Operating
detected, three beeps sound from the left or
right, depending on the direction of the
detected vehicle.
SeeRadio Frequency Statement 0334.
Turning the Features On or Off
RPA and RCTA can be turned on or off. See
“Collision/Detection Systems” underVehicle
Personalization 0105.
To turn the rear Park Assist symbols or
guidance lines on or off, see “Rear Camera”
under Vehicle Personalization 0105.
Forward Collision Alert (FCA)
System
If equipped, the FCA system may help to
avoid or reduce the harm caused by
front-end crashes. When approaching a
vehicle ahead too quickly, FCA provides a
red flashing alert on the windshield and
rapidly beeps. FCA also lights an amber
visual alert if following another vehicle too
closely.
FCA detects vehicles within a distance of
approximately 60 m (197 ft) and operates at
speeds above 8 km/h (5 mph).
{Warning
FCA is a warning system and does not
apply the brakes. When approaching a
slower-moving or stopped vehicle ahead
too rapidly, or when following a vehicle
too closely, FCA may not provide a
warning with enough time to help avoid
a crash. It also may not provide any
warning at all. FCA does not warn of
pedestrians, animals, signs, guardrails,
bridges, construction barrels, or other
objects. Be ready to take action and
apply the brakes. See Defensive Driving
0 185.
FCA can be disabled with the FCA steering
wheel control.
Detecting the Vehicle Ahead
FCA warnings will not occur unless the FCA
system detects a vehicle ahead. When a
vehicle is detected, the vehicle ahead indicator will display green. Vehicles may
not be detected on curves, highway exit
ramps, or hills, due to poor visibility; or if a
vehicle ahead is partially blocked by
pedestrians or other objects. FCA will not
detect another vehicle ahead until it is
completely in the driving lane.
{Warning
FCA does not provide a warning to help
avoid a crash, unless it detects a vehicle.
FCA may not detect a vehicle ahead if
the FCA sensor is blocked by dirt, snow,
or ice, or if the windshield is damaged.
It may also not detect a vehicle on
winding or hilly roads, or in conditions
that can limit visibility such as fog, rain,
or snow, or if the headlamps or
windshield are not cleaned or in proper
condition. Keep the windshield,
headlamps, and FCA sensors clean and in
good repair.
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Driving and Operating 231
Collision Alert
With Head-Up Display
Without Head-Up Display
When your vehicle approaches another
detected vehicle too rapidly, the red FCA
display will flash on the windshield. Also,
eight rapid high-pitched beeps will sound
from the front. When this Collision Alert
occurs, the brake system may prepare for
driver braking to occur more rapidly, which
can cause a brief, mild deceleration.
Continue to apply the brake pedal as
needed. Cruise control may be disengaged
when the Collision Alert occurs. Tailgating Alert
The vehicle ahead indicator will display
amber when you are following the vehicle
ahead too closely.
Selecting the Alert Timing
The Collision Alert control is on the steering
wheel. Press
[to set the FCA timing to
Far, Medium, Near, or Off. The first button
press shows the current setting on the DIC.
Additional button presses will change this
setting. The chosen setting will remain until
it is changed and will affect the timing of
both the Collision Alert and the Tailgating
Alert features. The timing of both alerts will
vary based on vehicle speed. The faster the
vehicle speed, the farther away the alert will
occur. Consider traffic and weather
conditions when selecting the alert timing.
The range of selectable alert timings may
not be appropriate for all drivers and driving
conditions.
Unnecessary Alerts
FCA may provide unnecessary alerts for
turning vehicles, vehicles in other lanes,
objects that are not vehicles, or shadows.
These alerts are normal operation and the
vehicle does not need service.
Cleaning the System
If the FCA system does not seem to operate
properly, this may correct the issue:
.Clean the outside of the windshield in
front of the rearview mirror.
.Clean the entire front of the vehicle.
.Clean the headlamps.
Side Blind Zone Alert (SBZA)
If equipped, the SBZA system is a
lane-changing aid that assists drivers with
avoiding crashes that occur with moving
vehicles in the side blind zone, or blind spot
areas. When the vehicle is in a forward gear,
the left or right side mirror display will light
up if a moving vehicle is detected in that
blind zone. If the turn signal is activated and
a vehicle is also detected on the same side,
the display will flash as an extra warning
not to change lanes. Since this system is
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238 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 239
California Proposition 65 Warning . . . . . 239
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 239
Accessories and Modifications . . . . . . . . . 240
Vehicle Checks
Doing Your Own Service Work . . . . . . . . 240
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Engine Compartment Overview . . . . . . . . 242
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Engine Oil Life System . . . . . . . . . . . . . . . . 249
Automatic Transmission Fluid . . . . . . . . . 250
Manual Transmission Fluid . . . . . . . . . . . . 250
Hydraulic Clutch . . . . . . . . . . . . . . . . . . . . . . . 250
Engine Air Filter Life System (2.0L LTG and 3.6L LGX Engines Only) . . . . . . . . . . 251
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 251
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 253
Engine Overheating . . . . . . . . . . . . . . . . . . . . 257
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 258 Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Battery - North America . . . . . . . . . . . . . . . 260
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Automatic Transmission Shift Lock
Control Function Check . . . . . . . . . . . . . . 261
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Wiper Blade Replacement . . . . . . . . . . . . . 262
Windshield Replacement . . . . . . . . . . . . . . 262
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 264
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 264
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 264
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . . . 264
License Plate Lamp . . . . . . . . . . . . . . . . . . . . 265
Electrical System
Electrical System Overload . . . . . . . . . . . . 265
Fuses and Circuit Breakers . . . . . . . . . . . . 266
Engine Compartment Fuse Block . . . . . . 266
Rear Compartment Fuse Block . . . . . . . . . 270
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . 273
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Low-Profile Tires . . . . . . . . . . . . . . . . . . . . . . . 274
Summer Tires . . . . . . . . . . . . . . . . . . . . . . . . . 274
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 275
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 276
Tire Terminology and Definitions . . . . . . 276
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Tire Pressure Monitor System . . . . . . . . . 280
Tire Pressure Monitor Operation . . . . . . . 281
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 284
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 284
When It Is Time for New Tires . . . . . . . . 285
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 286
Different Size Tires and Wheels . . . . . . . 287
Uniform Tire Quality Grading . . . . . . . . . 288
Wheel Alignment and Tire Balance . . . . 289
Wheel Replacement . . . . . . . . . . . . . . . . . . . 289
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 290
Tire Sealant and Compressor Kit . . . . . . . 291
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . . . . . . 296
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Vehicle Care 259
Caution
Continuing to drive with worn-out brake
linings could result in costly brake
repairs.
Some driving conditions or climates can
cause a brake squeal when the brakes are
first applied, clearing up following several
applies. This does not mean something is
wrong with the brakes.
If equipped with high performance brake
linings, there could be an increased build-up
of brake dust as well as minor noises as
compared to standard brake linings.
Properly torqued wheel nuts are necessary
to help prevent brake pulsation. When tires
are rotated, inspect brake linings for wear
and evenly tighten wheel nuts in the proper
sequence to torque specifications. See
Capacities and Specifications 0323.
Brake pads should be replaced as complete
axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does not
return to normal height, or if there is a
rapid increase in pedal travel. This could be
a sign that brake service may be required.
Replacing Brake System Parts
Always replace brake system parts with
new, approved replacement parts. If this is
not done, the brakes may not work
properly. The braking performance can
change in many ways if the wrong brake
parts are installed or if parts are improperly
installed.
High Performance Brake Lining Cold
Weather Performance
If equipped with high performance brake
components, binding or clunking may be
noticeable when first moving the vehicle
after parking in cold weather when the
brakes have been wet, such as when driving
in the rain or after a car wash. This is
normal for brakes with high friction linings
and does not affect the operation of the
brakes. Apply the brakes several times until
the binding or clunking stops. If the vehicle
is washed before long term storage, drive it
and apply the brakes several times to
thoroughly dry the brakes before storing.
Brake Fluid
The brake/clutch master cylinder reservoir is
filled with GM approved DOT 4 brake fluid
as indicated on the reservoir cap. See Engine
Compartment Overview 0242 for the
location of the reservoir.
Checking Brake Fluid
Place the vehicle in P (Park) or Neutral with
the parking brake applied if equipped with a
manual transmission. On a level surface, the
brake fluid level should be between the
minimum and maximum marks on the brake
fluid reservoir.
There are only two reasons why the brake
fluid level in the reservoir may go down:
.Normal brake lining wear. When new
linings are installed, the fluid level goes
back up.