engine CADILLAC ESCALADE 2010 3.G Service Manual

Engine Coolant Temperature Gage
This gage shows theengine coolanttemperature.
If the indicator on the gage moves towards the shadedarea on the thermostat, it means that the engine coolanthas overheated. If the vehicle has been operating undernormal driving conditions, pull off the road, stop thevehicle and turn off the engine as soon as possible.
SeeEngine Overheating on page 7!34.
Tire Pressure Light
For vehicles with a tirepressure monitoringsystem, this light comeson briefly when the engineis started. It providesinformation about tirepressures and the TirePressure MonitoringSystem.
When the Light is On Steady
This indicates that one or more of the tires issignificantly underinflated.
A tire pressure message in the Driver InformationCenter (DIC), can accompany the light. SeeDriverInformation Center (DIC)on page 4!41for moreinformation. Stop and check the tires as soon as it issafe to do so. If underinflated, inflate to the properpressure. SeeInflation - Tire Pressureon page 7!65for more information.
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When the Light Flashes First and Then is
On Steady
This indicates that there may be a problem with the TirePressure Monitor System. The light flashes for about aminute and stays on steady for the remainder of theignition cycle. This sequence repeats with every ignitioncycle. SeeTire Pressure Monitor Operationonpage 7!68for more information.
Malfunction Indicator Lamp
Check Engine Light
A computer system called OBD II (On-BoardDiagnostics-Second Generation) monitors operationof the fuel, ignition, and emission control systems.It ensures that emissions are at acceptable levels forthe life of the vehicle, helping to produce a cleanerenvironment.
This light should come onwhen the ignition is on,but the engine is notrunning, as a check toshow it is working. If itdoes not, have the vehicleserviced by your dealer/retailer.
If the check engine light comes on and stays on, whilethe engine is running, this indicates that there is anOBD II problem and service is required.
Malfunctions often are indicated by the system beforeany problem is apparent. Being aware of the light canprevent more serious damage to the vehicle. Thissystem assists the service technician in correctlydiagnosing any malfunction.
Notice:If the vehicle is continually driven with thislight on, after a while, the emission controls mightnot work as well, the vehicle's fuel economy mightnot be as good, and the engine might not run assmoothly. This could lead to costly repairs thatmight not be covered by the vehicle warranty.
Notice:Modifications made to the engine,transmission, exhaust, intake, or fuel system of thevehicle or the replacement of the original tires withother than those of the same Tire PerformanceCriteria (TPC) can affect the vehicle's emissioncontrols and can cause this light to come on.Modifications to these systems could lead to costlyrepairs not covered by the vehicle warranty. Thiscould also result in a failure to pass a requiredEmission Inspection/Maintenance test. SeeAccessories and Modifications on page 7!4.
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This light comes on during a malfunction in one oftwo ways:
Light Flashing :A misfire condition has been detected.A misfire increases vehicle emissions and coulddamage the emission control system on the vehicle.Diagnosis and service might be required.
To prevent more serious damage to the vehicle:
.Reduce vehicle speed.
.Avoid hard accelerations.
.Avoid steep uphill grades.
.If towing a trailer, reduce the amount of cargobeing hauled as soon as it is possible.
If the light continues to flash, when it is safe to do so,stop the vehicle. Find a safe place to park the vehicle.Turn the key off, wait at least 10 seconds, and restartthe engine. If the light is still flashing, follow theprevious steps and see your dealer/retailer for serviceas soon as possible.
Light On Steady :An emission control systemmalfunction has been detected on the vehicle.Diagnosis and service might be required.
An emission system malfunction might be corrected bydoing the following:
.Make sure the fuel cap is fully installed. SeeFillingthe Tankon page 7!11. The diagnostic systemcan determine if the fuel cap has been left off or
improperly installed. A loose or missing fuel capallows fuel to evaporate into the atmosphere. A fewdriving trips with the cap properly installed shouldturn the light off.
.If the vehicle has been driven through a deeppuddle of water, the vehicle's electrical systemmight be wet. The condition is usually correctedwhen the electrical system dries out. A few drivingtrips should turn the light off.
.Make sure to fuel the vehicle with quality fuel.Poor fuel quality causes the engine not to run asefficiently as designed and can cause: stalling afterstart-up, stalling when the vehicle is changed intogear, misfiring, hesitation on acceleration,or stumbling on acceleration. These conditionsmight go away once the engine is warmed up.
If one or more of these conditions occurs, changethe fuel brand used. It will require at least one fulltank of the proper fuel to turn the light off.
SeeGasoline Octane on page 7!8.
If none of the above have made the light turn off, yourdealer/retailer can check the vehicle. The dealer/retailerhas the proper test equipment and diagnostic tools to fixany mechanical or electrical problems that might havedeveloped.
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Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have ormight begin programs to inspect the emission controlequipment on the vehicle. Failure to pass thisinspection could prevent getting a vehicle registration.
Here are some things to know to help the vehicle passan inspection:
.The vehicle will not pass this inspection if thecheck engine light is on with the engine running,or if the key is in ON/RUN and the light is not on.
.The vehicle will not pass this inspection if theOBD II (on-board diagnostic) system determinesthat critical emission control systems have notbeen completely diagnosed by the system.The vehicle would be considered not ready forinspection. This can happen if the battery hasrecently been replaced or if the battery has rundown. The diagnostic system is designed toevaluate critical emission control systems duringnormal driving. This can take several days ofroutine driving. If this has been done and thevehicle still does not pass the inspection for lack ofOBD II system readiness, your dealer/retailer canprepare the vehicle for inspection.
Oil Pressure Light
{WARNING:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches fire.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.
Notice:Lack of proper engine oil maintenance candamage the engine. The repairs would not becovered by the vehicle warranty. Always follow themaintenance schedule in this manual for changingengine oil.
This light comes on briefly while starting the engine.If it does not, have the vehicle serviced by yourdealer/retailer. If the system is working normally theindicator light then goes off.
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If the light comes on and stays on, it means that oil isnot flowing through the engine properly. The vehiclecould be low on oil and it might have some othersystem problem.
Security Light
For information regardingthis light and the vehicle'ssecurity system, seeContent Theft-Deterrenton page 3!22.
Fog Lamp Light
The fog lamp light comeson when the fog lampsare in use.
The light goes out when the fog lamps are turned off.SeeFog Lampson page 4!16for more information.
Lights On Reminder
This light comes onwhenever the parkinglamps are on.
SeeExterior Lampson page 4!11for more information.
Cruise Control Light
The cruise control lightcomes on whenever thecruise control is set.
The light goes out when the cruise control is turned off.SeeCruise Controlo n p a g e 4!8for more information.
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Here are some situations owners may experience withthe fuel gage. None of these indicate a problem with thefuel gage.
.At the gas station, the fuel pump shuts off beforethe gage reads full.
.It takes a little more or less fuel to fill up than thefuel gage indicated. For example, the gage mayhave indicated the tank was half full, but it actuallytook a little more or less than half the tank'scapacity to fill the tank.
.The gage goes back to empty when the ignition isturned off.
Driver Information Center (DIC)
Your vehicle has a Driver Information Center (DIC).
The DIC displays information about your vehicle. It alsodisplays warning messages if a system problem isdetected. The DIC also allows some features to becustomized. SeeDIC Vehicle Customizationonpage 4!57for more information.
All messages will appear in the DIC display located inthe center of the instrument panel cluster.
The DIC comes on when the ignition is on. After a shortdelay, the DIC will display the information that was lastdisplayed before the engine was turned off.
SeeDIC Operation and Displayson page 4!41andDIC Vehicle Customizationon page 4!57for thedisplays available.
DIC Operation and Displays
The DIC has different displays which can be accessedby pressing the DIC buttons located on the instrumentpanel, next to the steering wheel.
The DIC displays trip, fuel, and vehicle systeminformation, and warning messages if a system problemis detected. A digital speedometer also appears at thebottom of the DIC display. The digital speedometercan be enabled or disabled. See“DISPLAY DIGITALSPEED”underDIC Vehicle Customizationonpage 4!57for more information.
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Transmission Temperature
Press the trip/fuel button until TRANS TEMP displays.This display shows the temperature of the automatictransmission fluid in either degrees Fahrenheit (°F) ordegrees Celsius (°C).
Instantaneous Economy
If your vehicle has this display, press the trip/fuel buttonuntil INST ECON displays. This display shows thecurrent fuel economy at a particular moment and willchange frequently as driving conditions change. Thisdisplay shows the instantaneous fuel economy in milesper gallon (mpg) or liters per 100 kilometers (L/100 km).Unlike average economy, this screen cannot be reset.
The display may also show if the vehicle is currentlyin V4, V6 or V8 mode.
Average Vehicle Speed
Press the trip/fuel button until AVERAGE SPEEDdisplays. This display shows the average speed inmiles per hour (MPH) or kilometers per hour (km/h).
Blank Display
This display shows no information.
Vehicle Information Menu Items
T(Vehicle Information):Press this button to scrollthrough the following menu items:
Oil Life
Press the vehicle information button until OIL LIFEREMAINING displays. This display shows an estimateof the oil's remaining useful life. If you see 99% OILLIFE REMAINING on the display, that means 99% ofthe current oil life remains. The engine oil life systemwill alert you to change the oil on a schedule consistentwith your driving conditions.
When the remaining oil life is low, the CHANGEENGINE OIL SOON message will appear on thedisplay. See“CHANGE ENGINE OIL SOON”underDICWarnings and Messageson page 4!48. You shouldchange the oil as soon as you can. SeeEngine Oilonpage 7!17. In addition to the engine oil life systemmonitoring the oil life, additional maintenance isrecommended in the Maintenance Schedule in thismanual. SeeScheduled Maintenanceo n p a g e 8!3formore information.
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Remember, you must reset the OIL LIFE displayyourself after each oil change. It will not reset itself.Also, be careful not to reset the OIL LIFE displayaccidentally at any time other than when the oil has justbeen changed. It cannot be reset accurately until thenext oil change. To reset the engine oil life system,seeEngine Oil Life System on page 7!20.
Side Blind Zone Alert
If your vehicle has the Side Blind Zone Alert (SBZA)system, this display allows the system to be turned onor off. Once in this display, press the set/reset button toselect between ON or OFF. If you choose ON, thesystem will be turned on. If you choose OFF, the systemwill be turned off. When the SBZA system is turned off,the DIC will display the SIDE BLIND ZONE ALERTSYSTEM OFF message as a reminder that the systemhas been turned off. SeeDIC Warnings and Messageson page 4!48andSide Blind Zone Alert (SBZA)onpage 3!48for more information.
Units
Press the vehicle information button until UNITSdisplays. This display allows you to select betweenEnglish or Metric units of measurement. Once in thisdisplay, press the set/reset button to select betweenENGLISH or METRIC units. All of the vehicleinformation will then be displayed in the unit ofmeasurement selected.
Tire Pressure
On vehicles with the Tire Pressure Monitor System(TPMS), the pressure for each tire can be viewed in theDIC. The tire pressure will be shown in either poundsper square inch (psi) or kilopascals (kPa). Press thevehicle information button until the DIC displays FRONTTIRES PSI (kPa) LEFT ## RIGHT ##. Press the vehicleinformation button again until the DIC displays REARTIRES PSI (kPa) LEFT ## RIGHT ##.
If a low tire pressure condition is detected by thesystem while driving, a message advising you toadd air to a specific tire will appear in the display.SeeInflation - Tire Pressureon page 7!65andDICWarnings and Messageson page 4!48for moreinformation.
If the tire pressure display shows dashes instead of avalue, there may be a problem with your vehicle. If thisconsistently occurs, see your dealer/retailer for service.
Battery Voltage
This display shows the current battery voltage. If thevoltage is in the normal range, the value will display.For example, the display may read BATTERYVOLTAGE 13.2 VOLTS. If the voltage is low, thedisplay will show LOW. If the voltage is high, thedisplay will show HIGH. Your vehicle's charging
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You should take any messages that appear on thedisplay seriously and remember that clearing themessages will only make the messages disappear,not correct the problem.
The following are the possible messages that can bedisplayed and some information about them.
BATTERY LOW START VEHICLE
When the vehicle’s battery is severely discharged, thismessage will display and four chimes will sound. Startthe vehicle immediately. If the vehicle is not started andthe battery continues to discharge, the climate controls,heated seats, and audio systems will shut off and thevehicle may require a jump start. These systems willfunction again after the vehicle is started.
CHANGE ENGINE OIL SOON
This message displays when the engine oil needs to bechanged. When you change the engine oil, be sure toreset the CHANGE ENGINE OIL SOON message. SeeEngine Oil Life Systemon page 7!20for informationon how to reset the message. SeeEngine Oilonpage 7!17andScheduled Maintenanceo n p a g e 8!3for more information.
DRIVER DOOR OPEN
This message displays and a chime sounds if the driverdoor is not fully closed and the vehicle is shifted out ofP (Park). Stop and turn off the vehicle, check the doorfor obstructions, and close the door again. Check to seeif the message still appears on the DIC.
ENGINE HOT A/C (Air Conditioning)
TURNED OFF
This message displays when the engine coolantbecomes hotter than the normal operating temperature.SeeEngine Coolant Temperature Gageon page 4!35.To avoid added strain on a hot engine, the airconditioning compressor automatically turns off.When the coolant temperature returns to normal,the air conditioning compressor turns back on. You cancontinue to drive your vehicle.
If this message continues to appear, have the systemrepaired by your dealer/retailer as soon as possible toavoid damage to the engine.
ENGINE OIL HOT IDLE ENGINE
This message displays when the engine oil becomeshotter than the normal operating temperature. Stop andallow the vehicle to idle until it cools down. SeeEngineCoolant Temperature Gageon page 4!35.
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ENGINE OVERHEATED IDLE ENGINE
Notice:If you drive your vehicle while the engine isoverheating, severe engine damage may occur. If anoverheat warning appears on the instrument panelcluster and/or DIC, stop the vehicle as soon aspossible. SeeEngine Overheatingon page 7!34formore information.
This message displays when the engine coolanttemperature is too hot. Stop and allow the vehicle toidle until it cools down. SeeEngine CoolantTemperature Gage on page 4!35.
SeeOverheated Engine Protection Operating Modeonpage 7!37for information on driving to a safe place inan emergency.
ENGINE OVERHEATED STOP ENGINE
Notice:If you drive your vehicle while the engine isoverheating, severe engine damage may occur. If anoverheat warning appears on the instrument panelcluster and/or DIC, stop the vehicle as soon aspossible. SeeEngine Overheatingon page 7!34formore information.
This message displays and a chime sounds if theengine cooling system reaches unsafe temperatures foroperation. Stop and turn off the vehicle as soon as it issafe to do so to avoid severe damage. This messageclears when the engine has cooled to a safe operatingtemperature.
ENGINE POWER IS REDUCED
This message displays and a chime sounds when thecooling system temperature gets too hot and the enginefurther enters the engine coolant protection mode.SeeEngine Overheatingon page 7!34for furtherinformation.
This message also displays when the vehicle's enginepower is reduced. Reduced engine power can affect thevehicle's ability to accelerate. If this message is on, butthere is no reduction in performance, proceed to yourdestination. The performance may be reduced the nexttime the vehicle is driven. The vehicle may be driven ata reduced speed while this message is on, butacceleration and speed may be reduced. Anytime thismessage stays on, the vehicle should be taken to yourdealer/retailer for service as soon as possible.
FUEL LEVEL LOW
This message displays and a chime sounds if the fuellevel is low. Refuel as soon as possible. SeeFuel Gageon page 4!40andFuelo n p a g e 7!7for moreinformation.
HOOD OPEN
This message displays and a chime sounds if the hoodis not fully closed. Stop and turn off the vehicle, checkthe hood for obstructions, and close the hood again.Check to see if the message still appears on the DIC.
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