check engine CADILLAC DTS 2010 1.G Owners Manual

{WARNING:
A crash severe enough to inflate the airbags may
have also damaged important functions in the
vehicle, such as the fuel system, brake and
steering systems, etc. Even if the vehicle appears
to be drivable after a moderate crash, there may
be concealed damage that could make it difficult
to safely operate the vehicle.
Use caution if you should attempt to restart the
engine after a crash has occurred.
In many crashes severe enough to inflate the airbag,windshields are broken by vehicle deformation.Additional windshield breakage may also occur from theright front passenger airbag.
•Airbags are designed to inflate only once. After an
airbag inflates, you will need some new parts forthe airbag system. If you do not get them, the airbagsystem will not be there to help protect you inanother crash. A new system will include airbagmodules and possibly other parts. The servicemanual for your vehicle covers the need to replaceother parts.
•The vehicle has a crash sensing and diagnostic
module which records information after a crash.SeeVehicle Data Recording and Privacy onpage 8-18andEvent Data Recorders on page 8-19.
•Let only qualified technicians work on the airbag
systems. Improper service can mean that anairbag system will not work properly. See yourdealer/retailer for service.
Passenger Sensing System
The vehicle has a passenger sensing system for theright front passenger position. The passenger airbagstatus indicator will be visible on the overhead consolewhen the vehicle is started.
The words ON and OFF, or the symbol for on and off,are visible during the system check. If you are usingremote start, if equipped, to start the vehicle froma distance, you may not see the system check.
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Remote Keyless Entry (RKE)
System
SeeRadio Frequency Statement on page 8-20forinformation regarding Part 15 of the FederalCommunications Commission (FCC) Rules andRSS-210/211 of Industry and Science Canada.
Changes or modifications to this system by other thanan authorized service facility could void authorization touse this equipment.
If there is a decrease in the RKE operating range, try this:
•Check the distance. The transmitter may be too far
from the vehicle. Stand closer during rainy or snowyweather.
•Check the location. Other vehicles or objects may be
blocking the signal. Take a few steps to the left orright, hold the transmitter higher, and try again.
•Check the transmitter’s battery. See “Battery
Replacement” later in this section.
•If the transmitter is still not working correctly, see
your dealer/retailer or a qualified technician forservice.
Remote Keyless Entry (RKE)
System Operation
The Remote Keyless Entry (RKE) transmitter functionswork up to 60 m (195 feet) away from the vehicle.
There are other conditions which can affect theperformance of the transmitter. SeeRemote KeylessEntry (RKE) System on page 3-4.
/(Remote Vehicle Start):Press to start the engine
from outside the vehicle using the RKE transmitter.SeeRemote Vehicle Start on page 3-7for additionalinformation.
With Remote Start(Without Remote StartSimilar)
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Remote Vehicle Start
The remote vehicle starting feature allows you to startthe engine from outside of the vehicle. It also startsup the vehicle’s automatic climate control system. Whenthe remote start system is active, the climate controlsystem will heat and cool the inside of the vehicleaccording to the previous settings of the system beforeturning the vehicle off. The rear window defoggerwill be turned on by the climate control system when itis cold outside. If the vehicle has heated seats, theywill also turn on when it is cold outside. SeeHeated andVentilated Seats on page 2-5for additional information.Cooled seats are not activated during a remote start.Normal operation of the climate control system willreturn after the key is turned to ON/RUN. SeeDualClimate Control System on page 4-36.
Laws in some communities may restrict the use ofremote starters. For example, some laws may require aperson using remote start to have the vehicle in viewwhen doing so. Check local regulations for anyrequirements on remote starting of vehicles.
Do not use the remote start feature if your vehicle is lowon fuel. Your vehicle may run out of fuel.
If your vehicle has the remote start feature, the RKEtransmitter functions will have an increased rangeof operation. However, the range may be less while thevehicle is running.
There are other conditions which can affect theperformance of the transmitter, seeRemote KeylessEntry (RKE) System Operation on page 3-4foradditional information.
/(Remote Start):This button will be on the
RKE transmitter if you have remote start.
To start the vehicle using the remote start feature:
1. Aim the transmitter at the vehicle.
2. Press and release the transmitter’s lock button,then immediately press and hold the transmitter’sremote start button until the turn signal lightsflash or if the vehicle’s lights are not visible, pressand hold the remote start button for at leastfour seconds. Pressing the remote start buttonagain after the vehicle has started will turn off theignition.
When the vehicle starts, the parking lamps will turnon and remain on while the vehicle is running.The vehicle’s doors will be locked.
3. If it is the first remote start since the vehicle has beendriven, repeat these steps, while the engine is stillrunning, to extend the engine running time by10 minutes. Remote start can be extended one time.
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PASS-Key®III+ Electronic
Immobilizer
SeeRadio Frequency Statement on page 8-20forinformation regarding Part 15 of the FederalCommunications Commission (FCC) Rules andRSS-210/211 of Industry and Science Canada.
PASS-Key®III+ Electronic
Immobilizer Operation
Your vehicle has PASS-Key®III+ (PersonalizedAutomotive Security System) theft-deterrent system.PASS-Key®III+ is a passive theft-deterrent system.
The system is automatically armed when the keyis removed from the ignition.
The system is automatically disarmed when the key isturned to ON/RUN, ACC/ACCESSORY or STARTfrom the LOCK/OFF position.
You do not have to manually arm or disarm the system.
The security light will come on if there is a problemwith arming or disarming the theft-deterrent system.
When the PASS-Key®III+ system senses that someoneis using the wrong key, it prevents the vehicle fromstarting. Anyone using a trial-and-error method to startthe vehicle will be discouraged because of the highnumber of electrical key codes.
If the engine does not start and the security light comeson when trying to start the vehicle, there may be aproblem with your theft-deterrent system. Turnthe ignition off and try again.
If the engine still does not start, and the key appears tobe undamaged, try another ignition key. At this time,you may also want to check the fuse, seeFusesand Circuit Breakers on page 6-101. If the engine stilldoes not start with the other key, your vehicle needsservice. If your vehicle does start, the first key may befaulty. See your dealer/retailer who can service thePASS-Key®III+ to have a new key made. In anemergency, contact Roadside Assistance.
It is possible for the PASS-Key®III+ decoder to “learn”the transponder value of a new or replacement key.Up to 10 keys may be programmed for the vehicle.The following procedure is for programming additionalkeys only. If all the currently programmed keys arelost or do not operate, you must see your dealer/retaileror a locksmith who can service PASS-Key®III+ tohave keys made and programmed to the system.
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The vehicle has a Computer-Controlled CrankingSystem. This feature assists in starting theengine and protects components. If the ignition keyis turned to the START position, and thenreleased when the engine begins cranking, theengine will continue cranking for a few seconds oruntil the vehicle starts. If the engine does notstart and the key is held in START, cranking will bestopped after 15 seconds to prevent crankingmotor damage. To prevent gear damage, thissystem also prevents cranking if the engineis already running. Engine cranking can be stoppedby turning the ignition switch to theACC/ACCESSORY or LOCK/OFF position.
Notice:Cranking the engine for long periods oftime, by returning the key to the START positionimmediately after cranking has ended, can overheatand damage the cranking motor, and drain thebattery. Wait at least 15 seconds between each try,to let the cranking motor cool down.
2. If the engine does not start after 5-10 seconds,especially in very cold weather (below 0°F or!18°C), it could be flooded with too much gasoline.Try pushing the accelerator pedal all the way tothe floor and holding it there as you hold the key inSTART for up to a maximum of 15 seconds.Wait at least 15 seconds between each try, to allowthe cranking motor to cool down. When theengine starts, let go of the key and accelerator. Ifthe vehicle starts briefly but then stops again, repeatthese steps. This clears the extra gasoline fromthe engine. Do not race the engine immediatelyafter starting it. Operate the engine andtransmission gently until the oil warms up andlubricates all moving parts.
Notice:The engine is designed to work with theelectronics in the vehicle. If you add electrical partsor accessories, you could change the way the engineoperates. Before adding electrical equipment, checkwith your dealer/retailer. If you do not, the enginemight not perform properly. Any resulting damagewould not be covered by the vehicle warranty.
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Warning Lights, Gages, and
Indicators
Warning lights and gages can signal that something iswrong before it becomes serious enough to causean expensive repair or replacement. Paying attention tothe warning lights and gages could prevent injury.
Warning lights come on when there might be or there isa problem with one of the vehicle’s functions. Somewarning lights come on briefly when the engine is startedto indicate they are working.
Gages can indicate when there might be or there is aproblem with one of the vehicle’s functions. Often gagesand warning lights work together to indicate a problemwith the vehicle.
When one of the warning lights comes on and stays onwhile driving, or when one of the gages shows therecould be a problem, check the section that explains whatto do. Follow this manual’s advice. Waiting to dorepairs can be costly and even dangerous.
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Speedometer and Odometer
The speedometer shows the speed in bothmiles per hour (mph) and kilometers per hour (km/h).See “MPH (km)” underDIC Operation and Displays onpage 4-62for more information.
The odometer mileage can be checked without thevehicle running. The vehicle’s odometer works togetherwith the driver information center. Trip A and Trip Bcan be set on the odometer. See “Trip Fuel” underDIC Operation and Displays on page 4-62for moreinformation.
If the vehicle ever needs a new odometer installed, thenew one is set to the correct mileage total of theold odometer.
Tachometer
This gage indicates theengine speed inrevolutions perminute (rpm).
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Airbag Readiness Light
The system checks the airbag’s electrical system forpossible malfunctions. If the light stays on it indicatesthere is an electrical problem. The system checkincludes the airbag sensor, the pretensioners, the airbagmodules, the wiring and the crash sensing anddiagnostic module. For more information on the airbagsystem, seeAirbag System on page 2-58.
The airbag readiness lightflashes for a few secondswhen the engine isstarted. If the light doesnot come on then, have itfixed immediately.
{WARNING:
If the airbag readiness light stays on after the
vehicle is started or comes on while driving, it
means the airbag system might not be working
properly. The airbags in the vehicle might not
inflate in a crash, or they could even inflate
without a crash. To help avoid injury, have the
vehicle serviced right away.
If there is a problem with the airbag system, an airbagDriver Information Center (DIC) message can also comeon. SeeDIC Warnings and Messages on page 4-67for more information.
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Charging System Light
This light comes on brieflywhen the ignition key isturned to START, butthe engine is not running,as a check to show itis working.
If it does not, have the vehicle serviced by yourdealer/retailer.
The light should go out once the engine starts. If it stayson, or comes on while driving, there could be aproblem with the charging system. A charging systemmessage in the Driver Information Center (DIC) can alsoappear. SeeDIC Warnings and Messages on page 4-67for more information. This light could indicate thatthere are problems with a generator drive belt, or thatthere is an electrical problem. Have it checked rightaway. If the vehicle must be driven a short distance withthe light on, turn off accessories, such as the radioand air conditioner.
Brake System Warning Light
The vehicle’s hydraulic brake system is divided intotwo parts. If one part is not working, the other part canstill work and stop the vehicle. For good brakingboth parts need to be working.
If the warning light comes on, there is a brake problem.Have the brake system inspected right away.
This light comes on briefly when the engine is turnedon. If it does not come on then, have it fixed so it will beready to warn if there is a problem.
When the ignition is on, the brake system warning lightalso comes on when the parking brake is set. Thelight will stay on if the parking brake does not releasefully. If it stays on after the parking brake is fullyreleased, it means there is a brake problem.
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Engine Coolant Temperature Gage
This gage shows theengine coolanttemperature.
It indicates when the engine has warmed up and if thecooling system is operating properly. If the gagepointer moves into the shaded area, the engine coolantis too hot and the engine coolant temperature warninglight comes on. SeeEngine Overheating on page 6-27for more information.
Tire Pressure Light
For vehicles with a tire pressure monitoring system, thislight comes on briefly when the engine is started. Itprovides information about tire pressures and the TirePressure Monitoring System.
When the Light is On Steady
This indicates that one or more of the tires aresignificantly underinflated.
A tire pressure message in the Driver InformationCenter (DIC), can accompany the light. SeeDriverInformation Center (DIC) on page 4-61for moreinformation. Stop and check the tires as soon as it issafe to do so. If underinflated, inflate to the properpressure. SeeInflation - Tire Pressure on page 6-54formore information.
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