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“Plus”: a preceding “+” is entered for a call abroad. “Verify”: the inputs are repeated by the voice output. “Asterisk”: an asterisk “*” is entered. “Hash”: a hash character “#” is entered. “Pause”: a pause is entered into the character sequence. “Help” “Cancel”


The telephone number entered can have a maximum length of 25 digits. To be able to make a call abroad you can say the word “Plus” (+) at the beginning of your number. The plus allows you to call from any country without knowing the prefix for calls made abroad in that country. Then say the required country code. Example of a Dialogue User: “Dial.” Voice output: “Please, say the number to dial.” User: “Plus four nine.” User: “Seven three one.” Voice output: “Seven three one.” User: “One one nine nine.” Voice output: “One one nine nine.” User: “Dial.” Voice output: “The number is being dialled.”


Buick LaCrosse Owner Manual - 2012


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Making a Call Using Name Tag When the “Call” command is used, a telephone number is entered that has been stored in the telephone book as a name tag. Available commands:


“Yes” “No” “Help” “Cancel”


Example of a Dialogue User: “Call.” Voice output: “Please, say the name tag to call.” (for name tag information, see “Saving a Name Tag” later in this section) User: ”Name tag.“ Voice output: “Seven three one.” User: “Yes.” Voice output: “Calling.”


Starting a Second Call Press the button b / g to start a second call during an active telephone call. Available commands:


“Send”: activate manual DTMF (touch-tone dialling), e.g. for voice mail or telephone banking. “Send name tag”: activate DTMF (touch-tone dialling) by entering a name tag. “Dial” “Call” “Re-dialing” “Help” “Cancel”


Example of a Dialogue User: Press the b / g button if a telephone call is active. User: “Send.”


Infotainment System 7-79


Voice output: “Please, say the number to send.” (for number input information, see the dialogue example for “Making a Call Using a Telephone Number” earlier in this section) User: “Send.”


Re-dialing The “Re-dialing” command re-dials the last number dialed.


Saving a Name Tag The “Save” command is used to store a telephone number in the telephone book under as a name tag. The name entered must be repeated once. The pitch and pronunciation must be as identical as possible for both name inputs, otherwise the voice control will reject the inputs. A maximum of 50 name tags can be stored in the telephone book.


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7-80


Infotainment System


Name tags are speaker-dependent, i.e. only the person who recorded a name tag can open it. To avoid the start of the recording of a saved name from being cut off, a short pause should be left after an input request. To be able to use the name tag independently of the location, i.e. including other countries, all telephone numbers should be entered with a “plus” character and a country code. Available commands:


“Save”: the inputs are accepted. “Re-dialing”: the last input is repeated. “Help” “Cancel”


Example of a Dialogue User: “Save.” Voice output: “Please, say the number to save.” User: Say number to save. (for number input information, see the dialogue example for “Making a Call Using a Telephone Number” earlier in this section) User: “Save.” User: “Name Tag” (give name tag). Voice output: “Please, repeat the name tag to confirm.” User: “Name Tag” Voice output: “Saving the name tag.”


Deleting a Name Tag The “Delete” command is used to delete a previously saved name tag. Available commands:


“Yes” “No” “Help” “Cancel”


Listening to Stored Name Tags The “Directory” command is used to listen to all stored name tags. Available commands:


“Call”: the telephone number of the voice tag last read aloud is selected. “Delete”: the entry of the voice tag last read aloud is deleted.


Buick LaCrosse Owner Manual - 2012


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Trademarks and License Agreements


Manufactured under license under U.S. Patent #'s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,487,535 & other U.S. and worldwide patents issued & pending. DTS and the Symbol are registered trademarks and DTS Digital Surround and the DTS logos are trademarks of DTS, Inc. Product includes software. All Rights Reserved.


Infotainment System 7-81


otherwise authorized by Macrovision. Reverse engineering or disassembly is prohibited.


Manufactured under license from Dolby® Laboratories. Dolby and the double-D symbol are registered trademarks of Dolby Laboratories.


This product incorporates copyright protection technology that is protected by U.S. patents and other intellectual property rights. Use of this copyright protection technology must be authorized by Macrovision, and is intended for home and other limited viewing uses only unless


"Made for iPod" means that an electronic accessory has been designed to connect specifically to iPod and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards. iPod, iPod classic, iPod nano, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries.


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7-82


Infotainment System


2 NOTES


Buick LaCrosse Owner Manual - 2012


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Climate Controls


Climate Control Systems


Automatic Climate Control


System . . . . . . . . . . . . . . . . . . . . . . 8-1


Dual Automatic Climate Control


System . . . . . . . . . . . . . . . . . . . . . . 8-4


Air Vents


Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-9


Maintenance


Air Intake . . . . . . . . . . . . . . . . . . . . 8-10
Passenger Compartment Air


Filter . . . . . . . . . . . . . . . . . . . . . . . 8-10


Climate Controls


8-1


Climate Control Systems Automatic Climate Control System


For vehicles with this system, it controls the heating, cooling, and ventilation.


A. Power B. Temperature Control C. Fan Control D. Air Delivery Mode Control E. Recirculation


F. AUTO (Automatic Operation) G. Defrost H. Air Conditioning I. Rear Window Defogger


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8-2


Climate Controls


Automatic Operation The system automatically controls the fan speed, air delivery, air conditioning, and recirculation in order to heat or cool the vehicle to the desired temperature. When the AUTO indicator light is on, the system is in full automatic operation. If the air delivery mode, fan speed, recirculation, or air conditioning setting is adjusted, the AUTO indicator turns off and the selected settings will appear on the display. To place the system in automatic mode do the following: 1. Press AUTO. 2. Set the temperature. Allow the system time to stabilize. Adjust the temperature as needed for best comfort.


To improve fuel efficiency and to cool the vehicle faster, recirculation may be automatically selected in warm weather.


The recirculation light will not come on. Press > to select recirculation; press it again to select outside air. Q TEMP R (Temperature Control): Press to increase or decrease the temperature.


Manual Operation O (Power): Press to turn the fan on or off. Q A R (Fan Control): Press to increase or decrease the fan speed. The fan speed setting appears on the main display. Pressing either button cancels automatic fan control and the fan can be controlled manually. Press AUTO to return to automatic operation. Q N R (Air Delivery Mode Control): Press to change the direction of the airflow. The current mode appears in the display screen. Pressing either button cancels automatic air delivery control and the direction of the airflow can be controlled manually. Press AUTO to return to automatic operation.


To change the current mode, select one of the following: Y (Vent): Air is directed to the instrument panel outlets. \ (Bi-Level): Air is divided between the instrument panel outlets and the floor outlets. C (Tri‐Level): Air is divided between the windshield, instrument panel, and floor outlets. [ (Floor): Air is directed to the floor outlets. - (Defog): Clears the windows of fog or moisture. Air is directed to the windshield and floor outlets. 0 (Defrost): Clears the windshield of fog or frost more quickly. Air is directed to the windshield. Selecting defrost will disable automatic control. For best results, clear all snow and ice from the windshield before defrosting.


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# (Air Conditioning): Press to turn the air conditioning system on or off. If the fan is turned off or the outside temperature falls below freezing, the air conditioning system will not run. Pressing this button cancels automatic air conditioning and turns off the air conditioner. Press AUTO to return to automatic operation and the air conditioner runs automatically as needed. When the indicator light is on, the air conditioner runs automatically to cool the air inside the vehicle or to dry the air needed to defog the windshield faster. > (Recirculation): Press to alternate between recirculating air inside the vehicle or pulling in outside air. When the indicator light is on, air is being recirculated inside the vehicle. This helps to quickly cool the air inside the vehicle or prevent outside air and odors from entering.


Pressing this button cancels automatic recirculation. Press AUTO to return to automatic operation and recirculation runs automatically as needed. Rear Window Defogger = (Rear Window Defogger): Press to turn the rear window defogger on or off. The rear window defogger turns off automatically after about 10 minutes. If turned on again it runs for about five minutes before turning off. The defogger can also be turned off by turning the ignition to ACC/ACCESSORY or LOCK/OFF. The rear window defogger can be set to automatic operation. See “Climate and Air Quality” under Vehicle Personalization on page 5‑40. When auto rear defog is selected, the rear window defogger turns on automatically when the interior temperature is cold and the outside temperature is about 4°C (40°F) and below.


Climate Controls


8-3


The auto rear defogger turns off automatically after about 10 minutes, or after five minutes if the outside temperature is not as cold. For vehicles with heated outside rearview mirrors, they turn on when the rear window defogger button is on and help to clear fog or frost from the surface of the mirror. See Heated Mirrors on page 2‑17. Notice: Do not try to clear frost or other material from the inside of the front windshield and rear window with a razor blade or anything else that is sharp. This may damage the rear window defogger grid and affect your radio's ability to pick up stations clearly. The repairs would not be covered by your warranty. Remote Start Climate Control Operation (if equipped): When the vehicle is started remotely, the climate control system will use the last setting before the vehicle was shut off.


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8-4


Climate Controls


If Automatic Operation was set, the fan speed will adjust to maximize heating or cooling. If Manual Operation was set, the fan speed will be limited to the last setting. In extreme temperatures, the system may not be able to heat or cool the vehicle to the preset temperature during the remote start run time. The rear window defogger turns on if it is cold outside. Sensor The solar sensor, located on top of the instrument panel near the windshield, monitors the solar heat. The climate control system uses the sensor information to adjust the temperature, fan speed, recirculation, and air delivery mode for best comfort. Do not cover the sensor; otherwise the automatic climate control system may not work properly.


Dual Automatic Climate Control System


For vehicles with this system, it controls the heating, cooling, and ventilation.


Non-eAssist Vehicles


A. Power B. Driver Temperature Control C. Defrost D. Fan Control E. Air Delivery Mode Control F. Recirculation/Automatic


Recirculation


G. Passenger Temperature Control H. AUTO (Automatic Operation) I. Rear Window Defogger J. Heated Steering Wheel K. Air Conditioning L. ZONE


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Climate Controls


8-5


The following are climate control settings that use more fuel: . Comfort air conditioning mode.


The Defrost mode.


. Extreme temperature settings,


such as 15°C (60°F) or 32°C (90°F).


. High fan speed settings. To help reduce fuel usage: . Use the full automatic control as


described under “Automatic Operation”.


. Use eco air conditioning, instead


of the comfort air conditioning.


. Select a temperature setting that


is higher in hot weather and lower in cold weather. Turn off the air conditioning when it is not needed.


. Only use defrost to clear the


windows.


eAssist Vehicles


A. Power B. Driver Temperature Control C. Defrost D. Fan Control E. Air Delivery Mode Control F. Recirculation/Automatic


Recirculation


G. Passenger Temperature Control H. AUTO (Automatic Operation) I. Rear Window Defogger


Eco Air Conditioning


J. K. Comfort Air Conditioning L. ZONE


Climate Control Influence on eAssist Operation and Fuel Economy (If Equipped) The climate control system is dependent upon other vehicle systems for heat and power input. Certain climate control settings can lead to higher fuel usage and/or fewer auto stops.


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8-6


Climate Controls


Automatic Operation The system automatically controls the fan speed, air delivery, air conditioning, and recirculation in order to heat or cool the vehicle to the desired temperature. When the AUTO indicator light is on, the system is in full automatic operation. If the air delivery mode, fan speed, recirculation, or air conditioning setting is adjusted, the AUTO indicator turns off and the selected settings will appear on the display. To place the system in automatic mode do the following: 1. Press AUTO. 2. Set the temperature. Allow the system time to stabilize. Adjust the temperature as needed for best comfort.


To improve fuel efficiency and to cool the vehicle faster, recirculation may be automatically selected in warm weather.


The recirculation light will not come on. Press > to select recirculation; press it again to select outside air. Q TEMP R (Driver and Passenger Temperature Control): The temperature can be adjusted separately for the driver and the passenger. Press to increase or decrease the temperature. ZONE: Press to link all climate zone settings to the driver settings. The ZONE indicator light will turn off. When the passenger settings are adjusted, the ZONE indicator light is on.


Manual Operation O (Power): Press to turn the fan off or on. Q A R (Fan Control): Press to increase or decrease the fan speed. The fan speed setting appears on the main display. Pressing either button cancels automatic fan control and the fan is controlled manually. Press AUTO to return to automatic operation.


Q N R (Air Delivery Mode Control): Press to change the direction of the airflow. The current mode appears in the display screen. Pressing either button cancels automatic air delivery control and the direction of the airflow is controlled manually. Press AUTO to return to automatic operation. To change the current mode, select one of the following: Y (Vent): Air is directed to the instrument panel outlets. \ (Bi-Level): Air is divided between the instrument panel outlets and the floor outlets. C (Tri‐Level): Air is divided between the windshield, instrument panel, and floor outlets. [ (Floor): Air is directed to the floor outlets. - (Defog): Clears the windows of fog or moisture. Air is directed to the windshield and floor outlets.


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0 (Defrost): Clears the windshield of fog or frost more quickly. Air is directed to the windshield. For best results, clear all snow and ice from the windshield before defrosting. For eAssist vehicles that have the auto defog feature, auto stops can occur in defrost mode. In this mode, the auto stops are shorter and less frequent than other air delivery modes to prevent instant fogging. # (Comfort Air Conditioning): Press to turn the air conditioning system on or off. If the climate control system is turned off or the outside temperature falls below freezing, the air conditioner will not run. Pressing this button cancels automatic air conditioning and turns off the air conditioner. Press AUTO to return to automatic operation and the air conditioner runs automatically as needed. When the indicator light is on, the


air conditioner runs automatically to cool the air inside the vehicle or to dry the air needed to defog the windshield faster. For eAssist vehicles, an auto stop may occur if the climate control system determines the a/c compressor can be shut off and still maintain comfort levels with minimal windshield fogging. Eco # (Eco Air Conditioning, If Equipped): This setting balances fuel economy and air conditioning comfort. In warm weather conditions, auto stops may occur more frequently and the vehicle interior may be warmer as compared to the comfort air conditioning. The eco a/c setting allows higher humidity inside the vehicle and window fogging before the engine restarts. Pressing the 0 button during an auto stop will restart the engine to prevent window fogging. To reach comfort levels quickly during an auto stop, the engine will restart if


Climate Controls


8-7


the air conditioner is off and the AUTO, eco #, or Comfort # is selected. The engine also restarts if the O is pressed on and the system is set to AUTO, eco #, or Comfort #. If temperature controls are adjusted cooler by more than 1°C (1°F) during an auto stop, the engine will restart to ensure that comfort is reached. > / / (Recirculation/Auto Recirculation): Press to change to automatic control of air recirculation inside the vehicle. When the auto recirculation indicator light is on, the air is automatically recirculated as needed to help quickly cool the air inside the vehicle. In auto recirculation control, the Air Quality Control system may operate when pollution is detected. To adjust the sensitivity of the Air Quality Control, see “Climate and Air Quality” under Vehicle Personalization on page 5‑40.


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8-8


Climate Controls


When the > indicator light is on, air is recirculated inside the vehicle. If both indicator lights are off, outside air will flow into the vehicle. Press AUTO or / to return to automatic operation. Auto Defog: The climate control system may have a sensor to automatically detect high humidity inside the vehicle. When high humidity is detected, the climate control system may adjust to outside air supply and turn on the air conditioner. The fan speed may slightly increase to help prevent fogging. If the climate control system does not detect possible window fogging, it returns to normal operation. To turn Auto Defog off or on, see “Climate and Air Quality” under Vehicle Personalization on page 5‑40.


Rear Window Defogger = (Rear Window Defogger): Press to turn the rear window defogger on or off. The rear window defogger turns off automatically after about 10 minutes. If turned on again it runs for about five minutes before turning off. The defogger can also be turned off by turning the ignition to ACC/ACCESSORY or LOCK/OFF. The rear window defogger can be set to automatic operation. See “Climate and Air Quality” under Vehicle Personalization on page 5‑40. When auto rear defog is selected, the rear window defogger turns on automatically when the interior temperature is cold and the outside temperature is about 4°C (40°F) and below. The auto rear defogger turns off automatically after about 10 minutes, or after five minutes if the outside temperature is not as cold.


For vehicles with heated outside rearview mirrors, they turn on when the rear window defogger button is on and help to clear fog or frost from the surface of the mirror. See Heated Mirrors on page 2‑17. Notice: Do not try to clear frost or other material from the inside of the front windshield and rear window with a razor blade or anything else that is sharp. This may damage the rear window defogger grid and affect your radio's ability to pick up stations clearly. The repairs would not be covered by your warranty. ( (Heated Steering Wheel): For vehicles with this feature, press to turn on or off. See Heated Steering Wheel on page 5‑3. Remote Start Climate Control Operation (if equipped): When the vehicle is started remotely, the climate control system will use the last setting before the vehicle was shut off. If Automatic Operation was set, the fan speed will adjust to


Buick LaCrosse Owner Manual - 2012


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Climate Controls


8-9


Operation Tips . Keep all outlets open whenever


possible for best system performance.


. Keep the path under all seats


clear of objects to help circulate the air inside the vehicle more effectively.


. Use of non-GM approved hood deflectors can adversely affect the performance of the system.


Air Vents Use the louvers located on the air vents to change the direction of the airflow. To open the vent, move the thumbwheel to t. To close the vent, move the thumbwheel to l. For vehicles with eAssist, there is a battery cooling air vent located on the shelf behind the rear passenger seats below the rear window. Keep this air inlet clear from items that may block air flow. Proper airflow is required to keep the eAssist battery and control system cool.


maximize heating or cooling. If Manual Operation was set, the fan speed will be limited to the last setting. In extreme temperatures, the system may not be able to heat or cool the vehicle to the preset temperature during the remote start run time. The rear window defogger turns on if it is cold outside. Sensor The solar sensor, located on top of the instrument panel near the windshield, monitors the solar heat. The climate control system uses the sensor information to adjust the temperature, fan speed, recirculation, and air delivery mode for best comfort. Do not cover the sensor; otherwise the automatic climate control system may not work properly.


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8-10


Climate Controls


Maintenance


Air Intake Clear away any ice, snow, or leaves from the air intake at the base of the windshield that can block the flow of air into the vehicle.


Passenger Compartment Air Filter The filter removes dust, pollen, and other airborne irritants from outside air that is pulled into the vehicle. The filter should be replaced as part of routine scheduled maintenance. See Maintenance Schedule on page 11‑3 for replacement intervals. For more information, see your dealer.


Buick LaCrosse Owner Manual - 2012


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Driving and Operating


Driving Information


Distracted Driving . . . . . . . . . . . . . 9-2
Defensive Driving . . . . . . . . . . . . . 9-3
Drunk Driving . . . . . . . . . . . . . . . . . 9-3
Control of a Vehicle . . . . . . . . . . . 9-3
Braking . . . . . . . . . . . . . . . . . . . . . . . 9-3
Steering . . . . . . . . . . . . . . . . . . . . . . . 9-4
Off-Road Recovery . . . . . . . . . . . . 9-5
Loss of Control . . . . . . . . . . . . . . . . 9-5
Driving on Wet Roads . . . . . . . . . 9-6
Highway Hypnosis . . . . . . . . . . . . 9-7
Hill and Mountain Roads . . . . . . 9-7
Winter Driving . . . . . . . . . . . . . . . . . 9-8
If the Vehicle Is Stuck . . . . . . . . 9-10
Vehicle Load Limits . . . . . . . . . . 9-10


Driving and Operating


9-1


Starting and Operating


Brakes


New Vehicle Break-In . . . . . . . . 9-15
Ignition Positions


(Key Access) . . . . . . . . . . . . . . . 9-16


Ignition Positions


(Keyless Access) . . . . . . . . . . . 9-18
Starting the Engine . . . . . . . . . . 9-20
Engine Heater . . . . . . . . . . . . . . . 9-24
Retained Accessory


Power (RAP) . . . . . . . . . . . . . . . 9-25
Shifting Into Park . . . . . . . . . . . . 9-25
Shifting out of Park . . . . . . . . . . 9-26
Parking over Things


That Burn . . . . . . . . . . . . . . . . . . 9-27


Engine Exhaust


Engine Exhaust . . . . . . . . . . . . . . 9-28
Running the Vehicle While


Parked . . . . . . . . . . . . . . . . . . . . . 9-28


Automatic Transmission


Automatic Transmission . . . . . 9-29
Manual Mode . . . . . . . . . . . . . . . . 9-31


Drive Systems


All-Wheel Drive . . . . . . . . . . . . . . 9-32


Antilock Brake


System (ABS) . . . . . . . . . . . . . . 9-33
Parking Brake . . . . . . . . . . . . . . . 9-34
Brake Assist . . . . . . . . . . . . . . . . . 9-36
Hill Start Assist (HSA) . . . . . . . 9-36


Ride Control Systems


Traction Control


System (TCS) . . . . . . . . . . . . . . 9-36
StabiliTrak® System . . . . . . . . . 9-37
Limited-Slip Differential . . . . . . 9-39
Selective Ride Control . . . . . . . 9-39


Cruise Control


Cruise Control . . . . . . . . . . . . . . . 9-40


Object Detection Systems


Ultrasonic Parking Assist . . . . 9-42
Side Blind Zone


Alert (SBZA) . . . . . . . . . . . . . . . 9-44


Rear Vision


Camera (RVC) . . . . . . . . . . . . . 9-46


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9-2


Driving and Operating


Fuel


Fuel . . . . . . . . . . . . . . . . . . . . . . . . . 9-49
Recommended Fuel . . . . . . . . . 9-49
Gasoline Specifications (U.S.


and Canada Only) . . . . . . . . . . 9-50


California Fuel


Requirements . . . . . . . . . . . . . . 9-50
Fuels in Foreign Countries . . . 9-50
Fuel Additives . . . . . . . . . . . . . . . 9-50
Filling the Tank . . . . . . . . . . . . . . 9-52
Filling a Portable Fuel


Container . . . . . . . . . . . . . . . . . . . 9-53


Towing


General Towing


Information . . . . . . . . . . . . . . . . . 9-54


Driving Characteristics and


Towing Tips . . . . . . . . . . . . . . . . 9-54


Trailer Towing (Except


eAssist) . . . . . . . . . . . . . . . . . . . . 9-57
Trailer Towing (eAssist) . . . . . . 9-59
Towing Equipment . . . . . . . . . . . 9-59


Conversions and Add-Ons


Add-On Electrical


Equipment . . . . . . . . . . . . . . . . . 9-60


Driving Information


Distracted Driving Distraction comes in many forms and can take your focus from the task of driving. Exercise good judgment and do not let other activities divert your attention away from the road. Many local governments have enacted laws regarding driver distraction. Become familiar with the local laws in your area. To avoid distracted driving, always keep your eyes on the road, hands on the wheel, and mind on the drive. . Do not use a phone in


demanding driving situations. Use a hands-free method to place or receive necessary phone calls.


. Watch the road. Do not read,


take notes, or look up information on phones or other electronic devices.


. Designate a front seat


passenger to handle potential distractions.


. Become familiar with vehicle


features before driving, such as programming favorite radio stations and adjusting climate control and seat settings. Program all trip information into any navigation device prior to driving.


. Wait until the vehicle is parked


to retrieve items that have fallen to the floor.


. Stop or park the vehicle to tend


to children.


. Keep pets in an appropriate


carrier or restraint.


. Avoid stressful conversations while driving, whether with a passenger or on a cell phone.


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Driving and Operating


9-3


{ WARNING


Taking your eyes off the road too long or too often could cause a crash resulting in injury or death. Focus your attention on driving.


Refer to the Infotainment section for more information on using that system, including pairing and using a cell phone. If equipped, refer to the navigation manual for information on that system, including pairing and using a cell phone.


Defensive Driving Defensive driving means “always expect the unexpected.” The first step in driving defensively is to wear the safety belt. See Safety Belts on page 3‑13. . Assume that other road users


(pedestrians, bicyclists, and other drivers) are going to be


careless and make mistakes. Anticipate what they might do and be ready.


. Allow enough following distance


between you and the driver in front of you. Focus on the task of driving.


Drunk Driving Death and injury associated with drinking and driving is a global tragedy.


{ WARNING Drinking and then driving is very dangerous. Your reflexes, perceptions, attentiveness, and judgment can be affected by even a small amount of alcohol. You can have a serious — or even fatal — collision if you drive after drinking.


(Continued)


WARNING (Continued)


Do not drink and drive or ride with a driver who has been drinking. Ride home in a cab; or if you are with a group, designate a driver who will not drink.


Control of a Vehicle Braking, steering, and accelerating are important factors in helping to control a vehicle while driving.


Braking Braking action involves perception time and reaction time. Deciding to push the brake pedal is perception time. Actually doing it is reaction time. Average driver reaction time is about three‐fourths of a second. In that time, a vehicle moving at 100 km/h (60 mph) travels 20 m (66 ft), which could be a lot of distance in an emergency.


Buick LaCrosse Owner Manual - 2012


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9-4


Driving and Operating


Helpful braking tips to keep in mind include: . Keep enough distance between


you and the vehicle in front of you.


. Avoid needless heavy braking. . Keep pace with traffic. If the engine ever stops while the vehicle is being driven, brake normally but do not pump the brakes. Doing so could make the pedal harder to push down. If the engine stops, there will be some power brake assist but it will be used when the brake is applied. Once the power assist is used up, it can take longer to stop and the brake pedal will be harder to push.


Steering


Electric Power Steering If your vehicle has electric power steering it does not have power steering fluid. Regular maintenance is not required.


If power steering assist is lost due to a system malfunction, the vehicle can be steered, but may require increased effort. If the steering wheel is turned in either direction several times until it stops, or it is held until it is stopped for an extended time, power steering assist should return shortly after a few normal steering movements. See specific vehicle steering messages under Vehicle Messages on page 5‑33. See your dealer if there is a problem. Variable Effort Steering Some vehicles have a steering system that varies the amount of effort required to steer the vehicle in relation to the speed of the vehicle. The amount of steering effort required is less at slower speeds to make the vehicle more maneuverable and easier to park. At faster speeds, the steering effort


increases to provide a sport-like feel to the steering. This provides maximum control and stability. If the vehicle seems harder to steer than normal when parking or driving slowly, there may be a problem with the system. You will still have power steering, but steering will be stiffer than normal at slow speeds. See your dealer for service. Hydraulic Power Steering If your vehicle has hydraulic power steering, it may require maintenance. See Power Steering Fluid Power Steering Fluid (2.4L L4
Engine) on page 10‑21 or Power Steering Fluid (3.6L V6 Engine) on page 10‑21. If power steering assist is lost because the engine stops or the power steering system is not functioning, the vehicle can be steered but may require increased effort. See your dealer if there is a problem.


Buick LaCrosse Owner Manual - 2012


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Curve Tips


Off-Road Recovery


Take curves at a reasonable speed.


. Reduce speed before entering a


curve.


. Maintain a reasonable steady


speed through the curve


. Wait until the vehicle is out of the curve before accelerating gently into the straightaway.


Steering in Emergencies


There are some situations when steering around a problem may be more effective than braking.


. Holding both sides of the


steering wheel allows you to turn 180 degrees without removing a hand.


. Antilock Brake System (ABS) allows steering while braking.


The vehicle's right wheels can drop off the edge of a road onto the shoulder while driving. Follow these tips: 1. Ease off the accelerator and then, if there is nothing in the way, steer the vehicle so that it straddles the edge of the pavement.


2. Turn the steering wheel about one-eighth of a turn, until the right front tire contacts the pavement edge.


Driving and Operating


9-5


3. Then turn the steering wheel to go straight down the roadway.


Loss of Control


Skidding There are three types of skids that correspond to the vehicle's three control systems: . Braking Skid — wheels are not


rolling.


. Steering or Cornering


Skid — too much speed or steering in a curve causes tires to slip and lose cornering force. . Acceleration Skid — too much


throttle causes the driving wheels to spin.


Defensive drivers avoid most skids by taking reasonable care suited to existing conditions, and by not overdriving those conditions. But skids are always possible.


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9-6


Driving and Operating


If the vehicle starts to slide, follow these suggestions: . Ease your foot off the


accelerator pedal and quickly steer the way you want the vehicle to go. The vehicle may straighten out. Be ready for a second skid if it occurs.


. Slow down and adjust your driving according to weather conditions. Stopping distance can be longer and vehicle control can be affected when traction is reduced by water, snow, ice, gravel, or other material on the road. Learn to recognize warning clues — such as enough water, ice, or packed snow on the road to make a mirrored surface — and slow down when you have any doubt. Try to avoid sudden steering, acceleration, or braking, including reducing vehicle speed by shifting to a lower gear. Any sudden changes could cause the tires to slide.


Remember: Antilock brakes help avoid only the braking skid.


Driving on Wet Roads Rain and wet roads can reduce vehicle traction and affect your ability to stop and accelerate. Always drive slower in these types of driving conditions and avoid driving through large puddles and deep‐standing or flowing water.


{ WARNING


Wet brakes can cause crashes. They might not work as well in a quick stop and could cause pulling to one side. You could lose control of the vehicle. After driving through a large puddle of water or a car/vehicle wash, lightly apply the brake pedal until the brakes work normally.


(Continued)


WARNING (Continued)


Flowing or rushing water creates strong forces. Driving through flowing water could cause the vehicle to be carried away. If this happens, you and other vehicle occupants could drown. Do not ignore police warnings and be very cautious about trying to drive through flowing water.


Hydroplaning Hydroplaning is dangerous. Water can build up under the vehicle's tires so they actually ride on the water. This can happen if the road is wet enough and you are going fast enough. When the vehicle is hydroplaning, it has little or no contact with the road. There is no hard and fast rule about hydroplaning. The best advice is to slow down when the road is wet.


Buick LaCrosse Owner Manual - 2012


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Other Rainy Weather Tips Besides slowing down, other wet weather driving tips include: . Allow extra following distance. . Pass with caution. . Keep windshield wiping


equipment in good shape.


. Keep the windshield washer fluid


reservoir filled.


. Have good tires with proper


tread depth. See Tires on page 10‑44. Turn off cruise control.


Highway Hypnosis Always be alert and pay attention to your surroundings while driving. If you become tired or sleepy, find a safe place to park the vehicle and rest. Other driving tips include: . Keep the vehicle well ventilated. . Keep the interior temperature cool.


. Keep your eyes moving — scan the road ahead and to the sides.


. Check the rearview mirror and


vehicle instruments often.


Driving and Operating


9-7


Hill and Mountain Roads Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips for driving in these conditions include: . Keep the vehicle serviced and in


good shape.


. Check all fluid levels and brakes,


tires, cooling system, and transmission.


. Shift to a lower gear when going


down steep or long hills. { WARNING


If you do not shift down, the brakes could get so hot that they would not work well. You would then have poor braking or even none going down a hill. You could crash. Shift down to let the engine assist the brakes on a steep downhill slope.


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9-8


Driving and Operating


{ WARNING


Coasting downhill in N (Neutral) or with the ignition off is dangerous. The brakes will have to do all the work of slowing down and they could get so hot that they would not work well. You would then have poor braking or even none going down a hill. You could crash. Always have the engine running and the vehicle in gear when going downhill.


. Stay in your own lane. Do not swing wide or cut across the center of the road. Drive at speeds that let you stay in your own lane.


. Be alert on top of hills,


something could be in your lane (stalled car, accident).


. Pay attention to special road


signs (falling rocks area, winding roads, long grades, passing or no-passing zones) and take appropriate action.


Winter Driving


Driving on Snow or Ice Drive carefully when there is snow or ice between the tires and the road, creating less traction or grip. Wet ice can occur at about 0°C (32°F) when freezing rain begins to fall, resulting in even less traction. Avoid driving on wet ice or in freezing rain until roads can be treated with salt or sand. Drive with caution, whatever the condition. Accelerate gently so traction is not lost. Accelerating too quickly causes the wheels to spin and makes the surface under the tires slick, so there is even less traction.


Try not to break the fragile traction. If you accelerate too fast, the drive wheels will spin and polish the surface under the tires even more. The Antilock Brake System (ABS) on page 9‑33 improves vehicle stability during hard stops on slippery roads, but apply the brakes sooner than when on dry pavement. Allow greater following distance on any slippery road and watch for slippery spots. Icy patches can occur on otherwise clear roads in shaded areas. The surface of a curve or an overpass can remain icy when the surrounding roads are clear. Avoid sudden steering maneuvers and braking while on ice. Turn off cruise control on slippery surfaces.


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Blizzard Conditions Being stuck in snow can be a serious situation. Stay with the vehicle unless there is help nearby. If possible, use the Roadside Assistance Program (U.S. and Canada) on page 13‑7 or Roadside Assistance Program (Mexico) on page 13‑9. To get help and keep everyone in the vehicle safe:


Turn on the hazard warning flashers. Tie a red cloth to an outside mirror.


{ WARNING


Snow can trap engine exhaust under the vehicle. This may cause exhaust gases to get inside. Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. It can cause unconsciousness and even death.


Driving and Operating


9-9


WARNING (Continued)


WARNING (Continued)


If the vehicle is stuck in the snow: . Clear away snow from around


the base of your vehicle, especially any that is blocking the exhaust pipe.


. Check again from time to


time to be sure snow does not collect there.


. Open a window about 5 cm


(2 in) on the side of the vehicle that is away from the wind to bring in fresh air.


. Fully open the air outlets on


or under the instrument panel.


. Adjust the climate control


system to a setting that circulates the air inside the vehicle and set the fan speed to the highest setting. See “Climate Control System” in the Index.


For more information about carbon monoxide, see Engine Exhaust on page 9‑28.


Run the engine for short periods only as needed to keep warm, but be careful. To save fuel, run the engine for only short periods as needed to warm the vehicle and then shut the engine off and close the window most of the way to save heat. Repeat this until help arrives but only when you feel really uncomfortable from the cold. Moving about to keep warm also helps. If it takes some time for help to arrive, now and then when you run the engine, push the accelerator pedal slightly so the engine runs faster than the idle speed. This keeps the battery charged to restart the vehicle and to signal for help with the headlamps. Do this as little as possible to save fuel.


(Continued)


(Continued)


Buick LaCrosse Owner Manual - 2012


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9-10


Driving and Operating


If the Vehicle Is Stuck Slowly and cautiously spin the wheels to free the vehicle when stuck in sand, mud, ice, or snow. If stuck too severely for the traction system to free the vehicle, turn the traction system off and use the rocking method.


{ WARNING


If the vehicle's tires spin at high speed, they can explode, and you or others could be injured. The vehicle can overheat, causing an engine compartment fire or other damage. Spin the wheels as little as possible and avoid going above 55 km/h (35 mph).


For information about using tire chains on the vehicle, see Tire Chains on page 10‑64.


Rocking the Vehicle to Get it Out Turn the steering wheel left and right to clear the area around the front wheels. Turn off any traction system. Shift back and forth between R (Reverse) and a forward gear, spinning the wheels as little as possible. To prevent transmission wear, wait until the wheels stop spinning before shifting gears. Release the accelerator pedal while shifting, and press lightly on the accelerator pedal when the transmission is in gear. Slowly spinning the wheels in the forward and reverse directions causes a rocking motion that could free the vehicle. If that does not get the vehicle out after a few tries, it might need to be towed out. If the vehicle does need to be towed out, see Towing the Vehicle on page 10‑94.


Vehicle Load Limits It is very important to know how much weight the vehicle can carry. This weight is called the vehicle capacity weight and includes the weight of all occupants, cargo and all nonfactory‐installed options. Two labels on the vehicle show how much weight it may properly carry, the Tire and Loading Information label and the Certification label.


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{ WARNING


Tire and Loading Information Label


Do not load the vehicle any heavier than the Gross Vehicle Weight Rating (GVWR), or either the maximum front or rear Gross Axle Weight Rating (GAWR). This can cause systems to break and change the way the vehicle handles. This could cause loss of control and a crash. Overloading can also shorten the life of the vehicle.


Label Example


A vehicle-specific Tire and Loading Information label is attached to the vehicle's center pillar (B-pillar). The Tire and Loading Information label shows the number of occupant seating positions (A), and the maximum vehicle capacity weight (B) in kilograms and pounds.


Driving and Operating


9-11


The Tire and Loading Information label also shows the tire 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 10‑44 and Tire Pressure on page 10‑51. There is also important loading information on the 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.


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9-12


Driving and Operating


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.


4. The resulting figure equals


the available amount of cargo and luggage load capacity. For example, if the “XXX” amount equals 1400 lbs and there will be five 150 lb passengers in your vehicle, the amount of available cargo


and luggage load capacity is 650 lbs (1400 − 750 (5 x 150) = 650 lbs).


5. Determine the combined


6.


weight of luggage and cargo being loaded on the vehicle. That weight may not safely exceed the available cargo and luggage load capacity calculated in Step 4. If your vehicle will be towing a trailer, the load from your trailer will be transferred to your vehicle. Consult this manual to determine how this reduces the available cargo and luggage load capacity of your vehicle.


See Trailer Towing (Except eAssist) on page 9‑57 or Trailer Towing (eAssist) on page 9‑59
for important information on towing a trailer, towing safety rules, and trailering tips.


Example 1


A. Vehicle Capacity Weight


for Example 1 = 453 kg (1,000 lbs).


B. Subtract Occupant Weight


@ 68 kg (150 lbs) × 2 = 136 kg (300 lbs).


C. Available Occupant and


Cargo Weight = 317 kg (700 lbs).


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Driving and Operating


9-13


seating positions. The combined weight of the driver, passengers, and cargo should never exceed the vehicle's capacity weight.


Certification Label


Example 2


Example 3


A. Vehicle Capacity Weight for


Example 2 = 453 kg (1,000 lbs).


B. Subtract Occupant Weight


@ 68 kg (150 lbs) × 5 = 340 kg (750 lbs).


C. Available Cargo Weight =


113 kg (250 lbs).


A. Vehicle Capacity Weight


for Example 3 = 453 kg (1,000 lbs).


B. Subtract Occupant Weight


@ 91 kg (200 lbs) × 5 = 453 kg (1,000 lbs).


C. Available Cargo Weight =


0 kg (0 lbs).


Refer to the vehicle's Tire and Loading Information label for specific information about the vehicle's capacity weight and


Label Example


A vehicle-specific Certification label is attached to the vehicle's center pillar (B-pillar). The label tells the gross weight capacity of the vehicle, called the Gross Vehicle Weight Rating (GVWR).


Buick LaCrosse Owner Manual - 2012


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9-14


Driving and Operating


The GVWR includes the weight of the vehicle, all occupants, fuel, and cargo. Never exceed the GVWR for the vehicle, or the Gross Axle Weight Rating (GAWR) for either the front or rear axle. And, if there is a heavy load, it should be spread out. See “Steps for Determining Correct Load Limit” earlier in this section.


{ WARNING


Do not load the vehicle any heavier than the Gross Vehicle Weight Rating (GVWR), or either the maximum front or rear Gross Axle Weight Rating (GAWR). This can cause systems to break and change the way the vehicle handles.


(Continued)


WARNING (Continued)


WARNING (Continued)


far forward as possible. Try to spread the weight evenly.


. Never stack heavier


things, like suitcases, inside the vehicle so that some of them are above the tops of the seats.


. Do not leave an


unsecured child restraint in the vehicle.


. Secure loose items in


the vehicle.


. Do not leave a seat folded


down unless needed.


This could cause loss of control and a crash. Overloading can also shorten the life of the vehicle.


If you put things inside the vehicle — like suitcases, tools, packages, or anything else — they will go as fast as the vehicle goes. If you have to stop or turn quickly, or if there is a crash, they will keep going.


{ WARNING


Things inside the vehicle can strike and injure people in a sudden stop or turn, or in a crash.


. Put things in the cargo


area of the vehicle. In the cargo area, put them as


(Continued)


Buick LaCrosse Owner Manual - 2012


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Driving and Operating


9-15


. Between the first 1 000 km


. Do not tow a trailer during


break-in. See Driving Characteristics and Towing Tips on page 9‑54 for the trailer towing capabilities of your vehicle and more information.


Following break‐in, engine speed and load can be gradually increased.


(600 mi) and 5 000 km (3,000 mi), heavy acceleration in lower gears can be used. Vehicle speeds above 110 km/h (68 mph) should be limited to five minutes per use.


. Avoid making hard stops for


the first 322 km (200 mi) or so. During this time the new brake linings are not yet broken in. Hard stops with new linings can mean premature wear and earlier replacement. Follow this breaking-in guideline every time you get new brake linings.


Starting and Operating


New Vehicle Break-In Notice: The vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines:


. Do not drive at any one


constant speed, fast or slow, for the first 805 km (500 mi). Do not make full-throttle starts. Avoid downshifting to brake or slow the vehicle.


. During the first 1 000 km


(600 mi), avoid using more than moderate acceleration in lower gears and avoid vehicle speeds above 110 km/h (68 mph).


Buick LaCrosse Owner Manual - 2012


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9-16


Driving and Operating


Ignition Positions (Key Access)


The ignition switch has four different positions. Notice: Using a tool to force the key to turn in the ignition could cause damage to the switch or break the key. Use the correct key, make sure it is all the way in, and turn it only with your hand. If the key cannot be turned by hand, see your dealer.


The key must be fully extended to start the vehicle. To shift out of P (Park), turn the ignition to ON/RUN and apply the brake pedal. A (STOPPING THE ENGINE/ LOCK/OFF): When the vehicle is stopped, turn the ignition switch to LOCK/OFF to turn the engine off. Retained Accessory Power (RAP) will remain active. See Retained Accessory Power (RAP) on page 9‑25 for more information. This is the only position from which the key can be removed. This locks the ignition and automatic transmission. Do not turn the engine off when the vehicle is moving. This will cause a loss of power assist in the brake and steering systems and disable the airbags.


If the vehicle must be shut off in an emergency: 1. Brake using a firm and steady


pressure. Do not pump the brakes repeatedly. This may deplete power assist, requiring increased brake pedal force.


2. Shift the vehicle to N (Neutral).


This can be done while the vehicle is moving. After shifting to N (Neutral), firmly apply the brakes and steer the vehicle to a safe location.


3. Come to a complete stop, shift to P (Park), and turn the ignition to LOCK/OFF. On vehicles with an automatic transmission, the shift lever must be in P (Park) to turn the ignition switch to the LOCK/OFF position.


4. Set the parking brake. See


Parking Brake on page 9‑34.


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{ WARNING


Turning off the vehicle while moving may cause loss of power assist in the brake and steering systems and disable the airbags. While driving, only shut the vehicle off in an emergency.


If the vehicle cannot be pulled over, and must be shut off while driving, turn the ignition to ACC/ ACCESSORY. The ignition switch can bind in the LOCK/OFF position with the wheels turned off center. If this happens, move the steering wheel from right to left while turning the key to ACC/ ACCESSORY. If this does not work, then the vehicle needs service.


B (ACC/ACCESSORY): This position provides power to some of the electrical accessories. It unlocks the ignition. To move the key from ACC/ACCESSORY to LOCK/OFF, the shift lever must be in P (Park). C (ON/RUN): The ignition switch stays in this position when the engine is running. This position can be used to operate the electrical accessories, including the ventilation fan and 12‐volt power outlet, as well as to display some warning and indicator lights. This position can also be used for service and diagnostics, and to verify the proper operation of the malfunction indicator lamp as may be required for emission inspection purposes. The transmission is also unlocked in this position.


Driving and Operating


9-17


The battery could be drained if the key is left in the ACC/ACCESSORY or ON/RUN position with the engine off. The vehicle might not restart if the battery is allowed to drain for an extended period of time. D (START): This position starts the engine. When the engine starts, release the key. The ignition switch will return to ON/RUN for normal driving. A warning tone sounds when the driver door is opened when the ignition is still in ACC/ACCESSORY and the key is in the ignition.


Buick LaCrosse Owner Manual - 2012


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9-18


Driving and Operating


Ignition Positions (Keyless Access)


The vehicle has an electronic keyless ignition with pushbutton start. Pressing the button cycles it through three modes, ACC/ACCESSORY, ON/RUN/START, and Stopping the Engine/OFF.


The transmitter must be in the vehicle for the system to operate. If the pushbutton start is not working, the vehicle may be near a strong radio antenna signal causing interference to the keyless access system. See Remote Keyless Entry (RKE) System Operation on page 2‑3 for more information. To shift out of P (Park), the vehicle must be in ACC/ACCESSORY or ON/RUN and the brake pedal must be applied. Stopping the Engine/OFF (No LED Lights): When the vehicle is stopped, press the engine START/STOP button once to turn the engine off. If the vehicle is in P (Park), the ignition will turn off, and Retained Accessory Power (RAP) will remain active. See Retained Accessory Power (RAP) on page 9‑25 for more information.


If the vehicle is not in P (Park), the ignition will return to ACC/ ACCESSORY and display the message SHIFT TO PARK in the Driver Information Center (DIC). See Transmission Messages on page 5‑39 for more information. When the vehicle is shifted into P (Park), the ignition system will switch to OFF. Do not turn the engine off when the vehicle is moving. This will cause a loss of power assist in the brake and steering systems and disable the airbags. If the vehicle must be shut off in an emergency: 1. Brake using a firm and steady


pressure. Do not pump the brakes repeatedly. This may deplete power assist, requiring increased brake pedal force.


2. Shift the vehicle to N (Neutral).


This can be done while the vehicle is moving.


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Driving and Operating


9-19


Service Only Mode This power mode is available for service and diagnostics, and to verify the proper operation of the malfunction indicator lamp as may be required for emission inspection purposes. With the vehicle off, and the brake pedal not applied, pressing and holding the button for more than five seconds will place the vehicle in Service Only Mode. The instruments and audio systems will operate as they do in ON/RUN, but the vehicle will not be able to be driven. The engine will not start in Service Only Mode. Push the button again to turn the vehicle off.

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