Alerting the Driver
The ACC alert symbol islocated on the display atthe top of the instrumentpanel to the right ofthe driver.
The alert symbol flashes and a warning beep soundswhen driver action may be required. If ACC is engaged,the alert symbol will flash when:
•ACC cannot apply sufficient braking because you
are approaching a vehicle too rapidly.
•The vehicle speed drops below about 32 km/h
(20 mph).
•A temporary condition prohibits ACC from operating.
SeeDIC Warnings and Messages on page 4-67formore information.
•A malfunction is detected in the system. SeeDIC
Warnings and Messages on page 4-67for moreinformation.
SeeDefensive Driving on page 5-2.
{WARNING:
Adaptive Cruise Control has only limited braking
ability to slow your vehicle. In some cases,
Adaptive Cruise Control may not have time to slow
your vehicle enough to avoid a collision. Be ready
to take action and apply the brakes yourself. See
Defensive Driving on page 5-2.
Approaching and Following a Vehicle
The vehicle ahead symbolis located on the top of theinstrument panel to theright of the driver.
The vehicle ahead symbol only appears when a vehicleis detected in your path.
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Instrument Panel Brightness
D(Instrument Panel Brightness):This feature
controls the brightness of the instrument paneland footwell lights, if equipped.
The button for this control is located below the exteriorlamps control.
Push the button in and release to extend the button.Turn the button clockwise or counterclockwise tobrighten or dim the lights.
Courtesy Lamps
The courtesy lamps are located on the headliner abovethe rear seat. These lamps come on by turning theinstrument panel brightness knob fully clockwise or whenany door is opened and it is dark outside. Puddle lampsare located on the bottom of the front and rear door trim.
Professional vehicles have an additional dome lampand also opera lamps.
Entry Lighting
This feature turns on the courtesy lamps and thebacklighting for the door switches and the exterior lampcontrol when a door is opened or if the remote keylessentry transmitter unlock button is pressed. If activateddue to the transmitter, the lighting remains active forabout 40 seconds. Since the entry lighting system usesthe light sensor, it must be dark outside in order for thecourtesy lamps to turn on. The courtesy lamps turn offapproximately 25 seconds after the last door is closed.They will dim to off if the ignition key is turned toON/RUN, or immediately deactivate if the power locksare activated.
Parade Dimming
This feature prohibits dimming of the digital displays andbacklighting during daylight hours when the key is inthe ignition and the headlamps are on. This feature isfully automatic. When the light sensor reads darknessoutside and the parking lamps are active, the digitaldisplays can be adjusted by turning the instrument panelbrightness knob counterclockwise to dim and clockwiseto brighten lighting.
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Electric Power Management
The vehicle has Electric Power Management (EPM) thatestimates the battery’s temperature and state ofcharge. It then adjusts the voltage for best performanceand extended life of the battery.
When the battery’s state of charge is low, the voltage israised slightly to quickly bring the charge back up.When the state of charge is high, the voltage is loweredslightly to prevent overcharging. If the vehicle has avoltmeter gage or a voltage display on the DriverInformation Center (DIC), you may see the voltage moveup or down. This is normal. If there is a problem, analert will be displayed.
The battery can be discharged at idle if the electricalloads are very high. This is true for all vehicles. This isbecause the generator (alternator) may not bespinning fast enough at idle to produce all the powerthat is needed for very high electrical loads.
A high electrical load occurs when several of thefollowing are on, such as: headlamps, high beams, foglamps, rear window defogger, climate control fan athigh speed, heated seats, engine cooling fans, trailerloads, and loads plugged into accessory power outlets.
EPM works to prevent excessive discharge of thebattery. It does this by balancing the generator’s outputand the vehicle’s electrical needs. It can increase
engine idle speed to generate more power, wheneverneeded. It can temporarily reduce the power demands ofsome accessories.
Normally, these actions occur in steps or levels, withoutbeing noticeable. In rare cases at the highest levelsof corrective action, this action may be noticeable to thedriver. If so, a Driver Information Center (DIC)message might be displayed, such as BATTERYSAVER ACTIVE, BATTERY VOLTAGE LOW, orLOW BATTERY. If this message is displayed, it isrecommended that the driver reduce the electrical loadsas much as possible. SeeDIC Warnings and Messageson page 4-67.
Inadvertent Power Battery Saver
This feature is designed to protect your vehicle’s batteryagainst drainage from the interior lamps, trunk lamp,glove box lamp, or the garage door opener. When theignition is turned off, the power to these features willautomatically turn off after 10 minutes. Power willbe restored for an additional 10 minutes if any door ortrunk is opened, or the courtesy lamp switch isturned on.
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Climate Controls
Dual Climate Control System
The heating, cooling, and ventilation for the vehicle canbe controlled with this system.
A. Fan Control
B. Display
C. Air Delivery Mode Control
D. Driver and Passenger Temperature Controls
E. Air Conditioning
F. Outside Air or AUX
G. Recirculation
H. PASS (Passenger Climate Control)
I. Rear Window Defogger
Dual Climate Control System
Dual Climate Control System for Vehicles withRear Climate Control
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Automatic Operation
AUTO9(Automatic Fan):When this position is
selected on the fan control, the system adjusts the fanspeed. If the OnStar®system is activated when thisposition is selected, the climate control fan speedwill lower.
AUTO (Automatic Mode):
1. Turn the fan control to the AUTO position.
2. Turn the mode control to the AUTO position.
3. Adjust the temperature to a comfortable settingbetween 21°C (68°F) and 26°C (78°F).
Choosing the coldest or warmest temperature settingwill not cause the system to heat or cool any faster.In cold weather, the system will start at reduced fanspeeds to avoid blowing cold air into the vehicle untilwarmer air is available. The system starts outblowing air at the floor but may change modesautomatically as the vehicle warms up to maintain thechosen temperature setting. The length of timeneeded to warm the interior depends on the outsidetemperature and temperature of the vehicle.
4. Wait 20 to 30 minutes for the system to stabilize inorder for the system to regulate automatically. Thenadjust the temperature as necessary to find yourcomfort setting.
Do not cover the solar sensor located in the center ofthe instrument panel near the windshield. For moreinformation on the solar sensor, see “Sensors” later inthis section.
After the vehicle is started, the display shows the interiortemperature settings and the outside temperature.
If the AUTO position is selected on the fan or modecontrol, the system automatically controls the airconditioning compressor. The A/C compressor will runautomatically even at cool outside temperatures in orderto dehumidify the air. The A/C indicator light is lit whenthe system is operating automatically, even at near
freezing outside temperatures. Press#on the fan
control to turn off the A/C. For improved window clearingperformance in defog or defrost modes, the A/Ccompressor runs automatically.
h(AUTO RECIRCULATION):If the AUTO position
is selected on either the fan or mode control, thesystem automatically controls the air inlet to supplyfresh outside air or recirculate the interior air to cool thecar faster. The light on the recirculation button willcome on when the system changes to recirculation.
Outside air can be forced by pressinghwhen
the light is lit. For vehicles without rear climate controls,
press:to force outside air. The next time AUTO
fan or mode is selected, the air inlet will reset back toAUTO operation.
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Manual Operation
9(Off):Turns the entire climate control system off.
Outside air still enters the vehicle and is directed to thefloor. The airflow direction and temperature can beadjusted, as indicated below.
If the temperature is adjusted while the system is off,the display will light to show the current settings.
wx(Driver’s Temperature Controls):Press the up
or down buttons next to the fan control to manuallyincrease or decrease the temperature inside the vehicle.
wx(Passenger’s Temperature Controls):Press
the up or down buttons next to the air deliverymode control to manually increase or decrease thetemperature for the front passenger. If the passengerclimate control system is off, pressing one of thesebuttons turns it on.
9(Fan Control):Turn clockwise or counterclockwise
to increase or decrease the fan speed. Turning thiscontrol completely counterclockwise will turn onthe automatic fan operation. If the airflow seems lowwhen the fan speed is at the highest setting, thepassenger compartment air filter may need to bereplaced. SeePassenger Compartment Air Filter onpage 4-44.
Air Delivery Mode Control:Turn clockwise orcounterclockwise to change the current airflow mode.
Select one of the following:
AUTO:Turns on the automatic delivery mode operation.
F(Vent):Air is directed to the instrument panel
outlets.
*(Bi-Level):Air is divided between the instrument
panel and the floor outlets. In automatic operation,cooler air is directed to the upper outlets and warmer airto the floor outlets.
7(Floor):Air is directed to the floor outlets with some
air directed to the side window outlets and thewindshield.
If recirculation is selected, it only stays on for threeminutes to reduce windshield fogging.
W(Floor/Defog):This mode clears the windows of
fog or moisture. Air is directed to the floor outlets, withsome air going to the side window outlets andwindshield. When selected, the system turns offrecirculation and runs the air conditioning compressorunless the outside temperature is at or below freezing.The recirculation mode cannot be selected while inthe floor/defog mode.
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0(Defrost):This mode clears the windshield of fog
or frost more quickly. Air is directed to the windshieldand side window outlets. When selected, the systemautomatically turns off recirculation and runs theair conditioning compressor, unless the outsidetemperature is at or below freezing. Recirculation cannotbe selected while in the defrost mode. Do not drivethe vehicle until all the windows are clear.
For professional vehicles, air will be allowed to flowthrough the rear outlets. For quicker defrost, press theAUX button on the front climate control system sothat the light is not lit.
#(Air Conditioning):Press to turn the air
conditioning system on or off and override the automaticsystem. When in AUTO, the air conditioning compressorcomes on automatically, as necessary. To avoidwindow fogging on rainy and humid days attemperatures above freezing, run the air conditioning.
The air conditioning system removes moisture fromthe air, so a small amount of water may drip under thevehicle while idling or after turning off the engine.This is normal.
:(Outside Air):Press to turn the outside air mode
on or off. An indicator light comes on to show it ison. Air is pulled from outside the vehicle.
Pressing?will cancel this mode.
?(Recirculation):Press to turn the recirculation
mode on or off. An indicator light below the buttoncomes on to show that this mode is on. This moderecirculates and helps to quickly cool the air inside thevehicle. It can be used to prevent outside air andodors from entering the vehicle. This mode cannot beselected while in the defog or defrost modes. If you try toselect the recirculation mode, the indicator lightflashes three times and turns off.
Operation in this mode during periods of high humidityand cool outside temperatures may result in increasedwindow fogging. If window fogging is experienced, selectthe defrost mode.
AUX:For vehicles with a rear climate control system,press to turn the rear climate control fan on for automaticoperation. After the AUX button is pressed, the indicatorlight comes on. Press the button again to turn theauxiliary fan off. SeeRear Climate Control System onpage 4-42.
PASS (Passenger Climate Control):Press to turn thepassenger climate control systems on or off. Whenthe passenger climate control system is on, thepassenger temperature setting is displayed. Thetemperature selected by the front passenger alsocontrols the rear system air temperature unless the rearseat passengers select their own comfort setting.
If the PASS button is pressed to turn the passengertemperature setting off, the driver’s temperatureknob will control the temperature for the entire vehicle.
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There is also an interiortemperature sensorlocated next to the steeringwheel that measures thetemperature of the airinside the vehicle.
There is also an exterior temperature sensor locatedbehind the front grille. This sensor reads the outside airtemperature and helps maintain the temperatureinside the vehicle. Any cover on the front of the vehiclecould cause a false reading in the displayedtemperature.
In order to prevent false temperature readings atstartup, the displayed temperature will not change untilthe following occurs:
•Vehicle speed is above 16 km/h (10 mph) for
5 minutes.
•Vehicle speed is above 51 km/h (32 mph) for 2 and
a half minutes.
The climate control system uses the information fromthese sensors to maintain your comfort setting byadjusting the outlet temperature, fan speed, and the airdelivery mode. The system may also supply coolerair to the side of the vehicle facing the sun. Therecirculation mode will also be used as needed tomaintain cool outlet temperatures.
Outlet Adjustment
For the front outlets, use the thumbwheel located beloweach outlet to change the direction of the airflow. Use thethumbwheel located next to the outlets to shut the airflowor to open the outlets and re-direct the air.
For the rear outlets, slide the lever left or right and up ordown to change the direction of the airflow.
Operation Tips
•Clear away any ice, snow or leaves from the air
inlets at the base of the windshield that mayblock the flow of air into your vehicle.
•Use of non-GM approved hood deflectors may
adversely affect the performance of the system.
•Keep the path under the front seats clear of objects
to help circulate the air inside of your vehicle moreeffectively.
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