light CADILLAC CTS 2009 2.G Service Manual

Setting Cruise Control
Cruise control will not work if the parking brake is set, or
if the master cylinder brake uid level is low.
The cruise control light on the instrument panel cluster
comes on after the cruise control has been set to
the desired speed.
{CAUTION:
If you leave your cruise control on when you are
not using cruise, you might hit a button and go
into cruise when you do not want to. You could be
startled and even lose control. Keep the cruise
control switch off until you want to use cruise
control.
1. Press the
Ibutton.
2. Get up to the desired speed.
3. Press the SET−button located on the steering
wheel and release it.
4. Take your foot off the accelerator.
Resuming a Set Speed
Suppose the cruise control is set at a desired speed
and then the brake is applied. This shuts off the cruise
control. But it does not need to be reset.
Once the vehicle is driving at about 25 mph (40 km/h)
or more, press the +RES button on the steering
wheel. The vehicle goes back to the previously set
speed and stays there.
Increasing Speed While Using Cruise
Control
To increase the cruise speed while using cruise control:
Press and hold the +RES button on the steering
wheel until the desired speed is reached, then
release it.
To increase vehicle speed in small increments,
press the +RES button. Each time this is done,
the vehicle goes about 1 mph (1.6 km/h) faster.
3-15

Reducing Speed While Using Cruise
Control
To reduce the vehicle’s speed while using cruise
control:
Press and hold the SET– button on the steering
wheel until the desired speed is reached, then
release it.
To slow down in very small amounts, press the
SET– button on the steering wheel briey.
Each time this is done, the vehicle goes about
1 mph (1.6 km/h) slower.
Passing Another Vehicle While Using
Cruise Control
Use the accelerator pedal to increase the vehicle’s
speed. When you take your foot off the pedal, the
vehicle slows down to the previously set cruise speed.
Using Cruise Control on Hills
How well the cruise control works on hills depends upon
the vehicle’s speed, load, and the steepness of the
hills. When going up steep hills, you might have to step
on the accelerator pedal to maintain the vehicle’s speed.
When going downhill, you might have to brake or shift
to a lower gear to keep the vehicle’s speed down.
When the brakes are applied the cruise control turns off.
Ending Cruise Control
There are four ways to end cruise control:
Step lightly on the brake pedal
(manual and automatic transmissions).
Press the clutch pedal to the oor
(manual transmissions).
Press[on the steering wheel.
PressIon the steering wheel.
Erasing Speed Memory
The cruise control set speed memory is erased when
the cruise control or the ignition is turned off.
3-16

Headlamps
The exterior lamp control is located towards the end of
the turn signal/multifunction lever.
O(Exterior Lamp Control):Turn the band with this
symbol on it to operate the exterior lamps.
The exterior lamp control has four positions:
O(Off):Turns off all lamps, except the Daytime
Running Lamps (DRL).
AUTO (Automatic):Turns the headlamps on and off
automatically, depending upon how much light is
available outside of the vehicle.
;(Parking Lamps):Turns on the parking lamps
together with the following:
Sidemarker Lamps
Taillamps
License Plate Lamps
Instrument Panel Lights
5(Headlamps):Turns on the headlamps, together
with the previously listed lamps and lights.
Wiper Activated Headlamps
This feature activates the headlamps and parking
lamps after the windshield wipers have been in use
for about six seconds. For this feature to work,
the exterior lamp control must be in AUTO.
The wiper-activated headlamps immediately turn off,
when the ignition is turned to LOCK/OFF or the
windshield wiper control is turned off.
Headlamps on Reminder
A warning chime will sound if the exterior lamp control
is left on in either the headlamp or parking lamp position
and the driver’s door is opened with the ignition off.
SeeLights On Reminder on page 3-48for additional
information.
3-17

Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
Fully functional daytime running lamps are required on
all vehicles rst sold in Canada.
The DRL system will make either the reduced intensity
low-beam headlamps or dedicated DRL’s come on
when the following conditions are met:
It is still daylight and the ignition is in ON/RUN
or START.
The exterior lamp control is in off or AUTO and the
headlamps are off.
The automatic transmission is not in P (Park).
When DRL’s are on, only the reduced intensity
low-beam headlamps or dedicated DRL’s will be on.
The other exterior lamps and the instrument panel
cluster will not be on.When the exterior lamp control is in AUTO and it is dark
enough outside, the DRL turns off and the low-beam
headlamps will turn on. When it is bright enough outside,
the low-beam headlamps will go off, and the DRL will
turn back on. If the vehicle is started in a dark garage,
the automatic headlamp system comes on immediately.
Once the vehicle leaves the garage, it takes about
one minute for the automatic headlamp system to
change to DRL if it is light outside. During that delay,
the instrument panel cluster may not be as bright
as usual. Make sure the instrument panel brightness
lever is in the full bright position. SeeInstrument Panel
Brightness on page 3-20.
Turning the exterior lamp control to off or to the
low-beam headlamp position will turn off the DRL.
If the parking lamps or the fog lamps were turned on
instead, the DRL will still turn off.
This will work regardless of gear position and whether
or not the parking brake is set.
3-18

Light Sensor
The light sensor for the
DRL and AUTO headlamp
feature is located on
top of the instrument panel.
If the sensor is covered, it will prevent it from sensing
light, and the exterior lamps or the Headlamps Suggested
message will appear on the DIC whenever the ignition
is on.
Adaptive Forward Lighting System
The Adaptive Forward Lighting System (AFL) pivots
the headlamps horizontally to provide greater road
illumination while turning. To enable AFL, set the
exterior lamp switch on the multifunction lever to the
AUTO position. Moving the switch out of the AUTOposition will deactivate the system. AFL will operate
when the vehicle speed is greater than 2 mph (3 km/h).
AFL will not operate when the transmission is in
R (Reverse). AFL is not immediately operable after
starting the vehicle; driving a short distance is required
to calibrate the AFL. SeeHeadlamps on page 3-17.
Fog Lamps
Use the fog lamps for better vision in foggy or misty
conditions. The fog lamp control is located on the turn
signal/multifunction lever.
#(Fog Lamps):Turn the fog lamp band on the
lever up to
#and release it, to turn the fog lamps on
or off. The band will return to its original position.
The parking lamps must be on for the fog lamps to work.
If the high-beam headlamps are turned on, the fog
lamps will also turn off. They will turn back on again
when you change back to low-beam headlamps.
Some localities have laws that require the headlamps to
be on along with the fog lamps.
3-19

Exterior Lighting Battery Saver
The exterior lamps turn off about 10 minutes after the
ignition is turned to LOCK/OFF, if the parking lamps
or headlamps have been left on. This protects against
draining the battery. The battery saver does not work
if the headlamps are turned on after the ignition is turned
to LOCK/OFF.
To keep the lamps on for more than 10 minutes, turn
the lamps back on with the exterior lamp control.
Instrument Panel Brightness
The knob with this symbol
is located on the instrument
panel to the left of the
steering column.
Turn the knob clockwise or counterclockwise to brighten
or dim the lights.
Turn the knob completely clockwise to turn on the
interior lamps.
Entry Lighting
The entry lighting system turns on the reading and
dome lamps and the backlighting to the exterior lamp
control, when a door is opened or if the transmitter
unlock button is pressed. If activated by the transmitter,
the lighting stays on for about 25 seconds. The entry
lighting system uses the light sensor on the instrument
panel; so it must be dark outside in order for the lamps
to turn on. The lamps turn off about 25 seconds after
the last door is closed. They dim then turn off if the
ignition key is turned to ON/RUN. They immediately
turn off if the power locks are used.
Parade Dimming
This feature does not let the instrument panel backlight
dim during daylight hours while the key is in the
ignition and the headlamps are on. Parade dimming
automatically works with the light sensor, located on top
of the dashboard. If it is dark enough outside and the
parking lamps are on, the backlight on the instrument
panel can be adjusted by turning the instrument panel
brightness knob clockwise or counterclockwise to
brighten or dim the lighting. SeeInstrument Panel
Brightness on page 3-20.
3-20

Reading Lamps
The reading lamps are located on the overhead console.
These lamps come on automatically when any door is
opened.
For manual operation, press the button next to each
lamp to turn it on or off.
If the reading lamps are left on, they automatically shut
off 10 minutes after the ignition has been turned off.
Electric Power Management
The vehicle has Electric Power Management (EPM) that
estimates the battery’s temperature and state of charge.
It then adjusts the voltage for best performance and
extended life of the battery.
When the battery’s state of charge is low, the voltage is
raised slightly to quickly bring the charge back up. When
the state of charge is high, the voltage is lowered slightly
to prevent overcharging. If the vehicle has a voltmeter
gage or a voltage display on the Driver Information
Center (DIC), you may see the voltage move up or down.
This is normal. If there is a problem, an alert will be
displayed.The battery can be discharged at idle if the electrical
loads are very high. This is true for all vehicles.
This is because the generator (alternator) may not be
spinning fast enough at idle to produce all the power that
is needed for very high electrical loads.
A high electrical load occurs when several of the
following are on: headlamps, high beams, fog lamps,
rear window defogger, climate control fan at high speed,
heated seats, engine cooling fans, trailer loads, and
loads plugged into accessory power outlets.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s output
and the vehicle’s electrical needs. It can increase
engine idle speed to generate more power, whenever
needed. It can temporarily reduce the power demands of
some accessories.
Normally, these actions occur in steps or levels, without
being noticeable. In rare cases at the highest levels
of corrective action, this action may be noticeable to the
driver. If so, a Driver Information Center (DIC) message
might be displayed, such as BATTERY SAVER ACTIVE,
BATTERY VOLTAGE LOW, or LOW BATTERY. If this
message is displayed, it is recommended that the driver
reduce the electrical loads as much as possible. SeeDIC
Warnings and Messages on page 3-58.
3-21

Ashtray(s) and Cigarette Lighter
The vehicle may have two removable ashtrays and
cigarette lighters. One ashtray can be placed into the
instrument panel storage compartment and the other
into the center console rear compartment. To use
the lighter, push it in all the way and let go. When it is
ready, it will pop back out by itself.
To empty the ashtrays, hold on to the edges of the bin
and pull straight out. To reinstall, push the tray back
into place.
Notice:Holding a cigarette lighter in while it is
heating does not let the lighter back away from the
heating element when it is hot. Damage from
overheating can occur to the lighter or heating
element, or a fuse could be blown. Do not hold a
cigarette lighter in while it is heating.
Notice:If papers, pins, or other ammable items
are put in the ashtray, hot cigarettes or other
smoking materials could ignite them and possibly
damage the vehicle. Never put ammable items
in the ashtray.
Analog Clock
The analog clock is located on the instrument panel
above the radio. The clock is not connected with
any other vehicle system and runs by itself. To adjust
the clock:
1. Locate the adjustment buttons directly below the
clock face.
2. Push and hold the right adjustment button to move
the clock hands forward or the left adjustment
button to make the clock hands go backward.
Holding either button down will cause the clock to
advance faster. Release the button before the
desired time is reached.
3. Push and release either button to adjust the time by
one minute increments until the desired time is
reached.
3-23

Climate Controls
Dual Climate Control System
The heating, cooling, and ventilation for the vehicle can
be controlled with this system.
A. Display
B. Fan Control
C. Power
D. AUTO
E. PASS (Passenger
Climate Control)
F. Defrost
G. Air Delivery Mode
ControlH. Temperature Control
and Heated Seat
I. Air Conditioning
J. Recirculation/
Outside Air
K. Heated Windshield
Washer
L. Rear Window
Defogger
Automatic Operation
AUTO (Automatic):The system automatically controls
fan speed, air delivery, and air conditioning in order
to heat or cool the vehicle to the desired temperature.
When the indicator light is on, the system is in full
automatic operation. If the air delivery mode or fan
setting is manually adjusted, the auto indicator turns
off and displays will show the selected settings.
1. Press the AUTO button.
2. Adjust the temperature to a comfortable setting
between 70°F (21°C) and 80°F (27°C).
Choosing the coldest or warmest temperature setting
will not cause the system to heat or cool any faster.
If the system is set at the warmest temperature
setting, it remains in manual mode at that
temperature and it will not go into automatic mode.
To avoid blowing cold air in cold weather, the system
delays turning on the fan until warm air is available.
The system starts out blowing air at the oor, but can
automatically change modes as the vehicle warms
up to maintain the chosen temperature setting.
The length of time needed for warm up depends on
the outside temperature and the length of time that
has elapsed since the vehicle was last driven.
3. Wait for the system to regulate. This may take from
10 to 30 minutes. Then adjust the temperature, if
necessary.
3-24

M/F(Recirculation/Outside Air):Press this
button to switch between recirculation and outside
air modes. The indicator light comes on to show which
mode is being used. The recirculation mode recirculates
and helps to quickly cool the air inside the vehicle.
It can be used to prevent outside air and odors from
entering the vehicle. Press the auto button to have
the system select the best air delivery mode for
the temperature setting.
Recirculation is not available in the defrost mode and
automatically turns off 10 minutes after defog is selected.
This helps to limit window fogging in the vehicle.
Using recirculation for long periods of time could cause
the air inside the vehicle to become too dry or stuffy.
To prevent this from happening, after the air in the vehicle
has cooled, select outside air or press the auto button.
The outside air mode pulls fresh air from outside the
vehicle. Outside air is always selected in defrost mode to
prevent fogging.Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog or frost from the rear window. It only works
when the ignition is in ON/RUN.
=(Rear Window Defogger):Press to turn the rear
window defogger on or off.
The rear window defogger stays on for about 15 minutes,
before turning off if the vehicle is moving at a slower
speed. At higher speeds, the rear window defogger may
stay on continuously. With each additional press, the
defogger runs for about 10 minutes. The defogger can
also be turned off by turning off the engine.
The heated outside rearview mirrors turn on when the
rear window defogger button is on and helps to clear
fog or frost from the surface of the mirror. SeeOutside
Heated Mirrors on page 2-53.
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 wouldn’t be covered
by your warranty.
3-27