Page 82 of 356

Some automatic downshifts may occur to maintain
minimum engine speed. This will only occur if you leave
the vehicle in too high of a gear range for the speed
the vehicle is traveling. For example, if you have been
driving in ®fth gear range and come to a stop without
manually downshifting, ®fth gear range will continue to
display in the HUD. The transmission will automatically
downshift to second gear. As you begin to drive
and accelerate, the transmission will automatically
upshift as quickly as possible to the selected ®fth
gear range.
In higher gear ranges, an automatic downshift will occur
if you press the accelerator pedal to the ¯oor. This
feature provides you with adequate acceleration
capabilities if you forget to downshift manually.
Automatic upshifts and downshifts will not display in
the HUD.
Driver shift control is available while the cruise control is
engaged. The shift behavior of the transmission will
react differently than when cruise control is not engaged.
This is not a malfunction and is necessary to allow
proper operation of the cruise control.
To return to fully automatic operation, move the shift
lever to the right and back into the AUTOMATIC
OVERDRIVE (D) position.Parking Brake
The parking brake pedal is
located to the left of the
regular brake pedal,
near the driver's door.
To set the parking brake, hold the regular brake pedal
down with your right foot and push the parking brake
pedal down with your left foot.
If the ignition is running, the parking brake indicator light
on the instrument panel cluster should come on. If it
does not, you need to have your vehicle serviced.
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Page 83 of 356

When you move out of PARK (P) or NEUTRAL (N) and
the engine is running, the parking brake should
release. If the parking brake has not been fully released
and you try to drive off with the parking brake on, the
parking brake indicator light will come on and stay on.
If the parking brake does not fully release, you can
manually release the pedal. However, be sure to read
the following paragraphs:
{CAUTION:
Always shift to PARK (P) before pulling the
manual release lever. If your hand or arm is in
the way of the pedal you could be hurt. The
pedal springs back quickly. Keep your hand
and arm away when you use the manual
release lever.
Before releasing the manual parking brake, be sure to
put the vehicle in PARK (P) and turn the ignition off.Reach under the driver's side of the instrument panel
and pull down on the manual release lever, which
is located behind the parking brake pedal. Pull down on
the yellow tab as shown by the arrow in the illustration.
If the parking brake does not release, you should
have your vehicle towed to your dealer for service.
Notice:Driving with the parking brake on can
overheat the brake system and cause premature
wear or damage to brake system parts. Verify that
the parking brake is fully released and the brake
warning light is off before driving.
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Page 91 of 356

OnStaržSystem
OnStaržuses global positioning system (GPS) satellite
technology, wireless communications, and call centers
to provide you with a wide range of safety, security,
information and convenience services.
A complete OnStar
žuser's guide and the terms and
conditions of the OnStaržSubscription Service
Agreement are included in your vehicle's glove box
literature. For more information, visit www.onstar.com,
contact OnStar
žat 1-888-4-ONSTAR (1-888-466-7827),
or press the blue OnStaržbutton to speak to an
OnStaržadvisor 24 hours a day, 7 days a week.
A completed Subscription Service Agreement is required
prior to delivery of OnStar
žservices and prepaid
calling minutes are also required for OnStaržPersonal
Calling and OnStaržVirtual Advisor use. Terms and
conditions of the Subscription Service Agreement can be
found at www.onstar.com.
OnStaržServices
One of the following plans is normally included for a
speci®c duration with each vehicle equipped with
OnStar
ž. You can upgrade or extend your OnStarž
service plan to meet your needs.
Safe and Sound Plan
·
Automatic Noti®cation of Air Bag Deployment
·Emergency Services
·Roadside Assistance
·Stolen Vehicle Assistance
·AccidentAssist
·Remote Door Unlock
·Remote Diagnostics
·Online Concierge
Directions and Connections Plan
·
All Safe and Sound Plan services
·Route Support
·RideAssist
·Information and Convenience Services
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Page 92 of 356

Luxury and Leisure Plan
·
All Direction and Connections Plan services
·Personal Concierge
OnStaržPersonal Calling
With OnStaržPersonal Calling, you have a safer way to
stay connected while driving. It's a hands-free wireless
phone that's integrated into your vehicle. You can place
calls nationwide using voice-activated dialing with no
contracts and no additional roaming charges. To ®nd out
more about OnStar
žPersonal Calling, refer to the
OnStaržuser's guide in your vehicle's glove box, or call
OnStaržat 1-888-4-ONSTAR (1-888-466-7827).
OnStaržVirtual Advisor
With OnStaržVirtual Advisor you can listen to the news,
entertainment and informative topics, such as traffic
and weather reports. You are able to listen and reply to
your e-mail through your vehicle's speakers.
OnStaržSteering Wheel Controls
You can use the steering wheel controls with OnStarž.
The controls are located
on the left side of the
steering wheel.
Press the top part of the Talk button to use the voice
activated keypad while in a call using OnStar
žPersonal
Calling. For more information, refer to the OnStarž
user's guide in your vehicle's glove box, or call OnStarž
at 1-888-4-ONSTAR (1-888-466-7827).
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Page 93 of 356

HomeLinkžTransmitter
HomeLinkž, a combined universal transmitter and
receiver, provides a way to replace up to three
hand-held transmitters used to activate devices such as
gate operators, garage door openers, entry door
locks, security systems and home lighting. Additional
Homelink
žinformation can be found on the internet at
www.homelink.com or by calling 1-800-355-3515.
If your vehicle is equipped with the HomeLink
ž
Transmitter, it complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this
device must accept any interference, including
interference that may cause undesired operation of the
device.
Changes and modi®cations to this system by other than
an authorized service facility could void authorization
to use this equipment.
Programming the HomeLinkž
Transmitter
Do not use the HomeLinkžTransmitter with any garage
door opener that does not have the ªstop and reverseº
feature. This includes any garage door opener model
manufactured before April 1, 1982. If you have a newer
garage door opener with rolling codes, please be
sure to follow steps 6 through 8 to complete the
programming of your HomeLink
žTransmitter.
Read the instructions completely before attempting to
program the HomeLink
žTransmitter. Because of
the steps involved, it may be helpful to have another
person available to assist you in programming the
transmitter.
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Page 120 of 356

This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference, and
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modi®cations to this system by other than
an authorized service facility could void authorization to
use this equipment.
Adaptive Cruise Control (ACC) is an enhancement to
traditional cruise control and is not a safety system. ACC
allows you to keep cruise control engaged in moderate
traffic conditions without having to constantly reset
your cruise control. ACC uses radar to detect a vehicle
directly ahead in your path, within a distance of
328 ft (100 m), and operates at speeds above
25 mph (40 km/h). When it is engaged by the driver,
ACC can apply limited braking or acceleration of
the vehicle automatically to maintain a selected follow
distance to the vehicle ahead. ACC braking is limited to
0.3 g's (2.95 m/sec2) of deceleration, which is
comparable to moderate application of the vehicle's
brakes. To disengage ACC, apply the brake. If there is
no vehicle in your path, your vehicle will react like
traditional cruise control.
{CAUTION:
ACC will not apply hard braking or bring the
vehicle to a complete stop. ACC will not
respond to stopped vehicles, pedestrians or
animals. When you are approaching a vehicle
or object, ACC may not have time to slow your
vehicle enough to avoid a collision. Your
complete attention is always required while
driving and you should be ready to take action
and apply the brakes. For more information,
see
Defensive Driving on page 4-2.
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Page 129 of 356
ACC may detect a vehicle that is not in your lane and
apply the brakes.
ACC may occasionally provide a driver alert and/or
braking that you consider unnecessary. ACC could
respond to signs, guardrails and other stationary objects
when entering or exiting a curve. This is normal
operation. Your vehicle does not need service.
Highway Exit Ramps
{CAUTION:
ACC may lose track of the vehicle ahead and
accelerate up to your set speed while entering
or on highway exit ramps. You could be
startled by this acceleration and even lose
control of the vehicle. So, disengage ACC
before entering a highway exit ramp. Do not
use ACC on exit ramps.
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Page 131 of 356

Disengaging ACC
To disengage ACC, apply the brake pedal or move the
ACC switch to off. ACC information on the HUD will
not display when ACC is not engaged.
Erasing Set Speed Memory
When you turn the ACC switch or the ignition off, your
ACC set speed memory is erased.
Other Messages
There are three messages that may appear in the
Driver Information Center (DIC). They are SERVICE
RADAR CRUISE, CRUISE NOT READY and CLEAN
RADAR CRUISE. These messages will only appear
to indicate a problem if ACC is active. See
DIC
Warnings and Messages on page 3-57for more
information.
You may also see CRUISE SPEED LIMITED displayed
in the HUD. See
Head-Up Display (HUD) on page 3-27for more information.
Cleaning the System
The radar can become blocked by snow, ice or dirt. If
so, you may need to turn off the engine and clean
the lens. Remember, do not use ACC in icy conditions,
or when visibility is low, such as in fog, rain or snow.
The lens is located on the driver's side of the front
fascia.
After cleaning the fascia lens, try to engage the ACC. If
this does not ®x the problem, you may have to
remove the fascia lens and clean the inside of the
fascia lens and radar lens.
To clean the inside of the fascia lens and radar lens,
insert a screwdriver or similar object into one of
the small slots on the inboard side of the lens and pop
the lens out. After cleaning the lens, set the lens
back in place and press until it snaps in.
3-21