2007 CADILLAC DTS warning

Exterior Lamps
The exterior lamps
control is located on
the instrument panel to
the left of the steering
wheel.
It controls the following systems:
Headlamps
Taillamps
Parking Lamps
License Plate Lamps
Instrument Panel Lights
Fog Lamps
The exterior lamps control has four positions:
O(Off):This position turns off the exterior lamps
except for Daytime Running Lamps (DRL).AUTO (Automatic):This position automatically
turns on the headlamps at normal brightness,
together with the following:
Parking Lamps
Instrument Panel Lights
IntelliBeam™
;(Parking Lamps):This position turns on the
parking lamps together with the following:
Instrument Panel Lights
License Plate Lamps
Taillamps
Side Marker Lamps
The parking brake indicator light comes on and
stays on while the parking lamps are on with the
engine off and the ignition in ACCESSORY or RUN.
2(Headlamps):This position turns on the
headlamps together with the previously listed
lamps. A warning chime sounds if you open the
driver’s door when the ignition switch is off and the
headlamps are on.
-(Fog Lamps):Press the exterior lamps control
to turn on the fog lamps. SeeFog Lamps on
page 198.
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Wiper Activated Headlamps
This feature activates the headlamps and parking
lamps after the windshield wipers are turned
on and have completed eight wipe cycles within
four minutes.
When the ignition is turned to OFF, the
wiper-activated headlamps immediately turn off.
The wiper-activated headlamps also turn off if the
windshield wipers are 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.
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier
for others to see the front of your vehicle during
the day. DRL can be helpful in many different
driving conditions, but they can be especially
helpful in the short periods after dawn and before
sunset. Fully functional daytime running lamps
are required on all vehicles rst sold in Canada.
The DRL system will make the turn signal lamps
come on when the following conditions are met:
It is still daylight and the ignition is on.
The exterior lamp control is in the off position.
The transaxle is not in PARK (P)
(United States only).
The light sensor is covered or not detecting
light. See “Sensors” underDual Climate Control
System on page 210.
When DRL are on, no other exterior lamps such as
the parking lamps, taillamps, etc. will be on when
the DRL are being used. Your instrument panel will
not be lit up either.
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If the battery continues to discharge, even with
the engine idling at a higher rpm setting, some
electrical loads will automatically be reduced. When
this occurs, the rear window defogger may take
slightly longer to clear the glass, the heated seats
may not get as warm as they usually do and the
climate control fan may cut back to a lower speed.
For more battery saving information, see “Battery
Saver Active Message” underDIC Warnings and
Messages on page 246.
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 put the charge
back in. When the state of charge is high, the
voltage is lowered slightly to prevent overcharging.
If the vehicle has a voltmeter gage or 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 loads 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 or Service
Battery Charging System. 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 246.
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A bicycle or an object is attached to the front
bumper during your last drive when you turned
off the vehicle. If the attached objects are
removed from your vehicle before the start of
your next drive, the system will return to normal
unless an object is detected when the vehicle is
shifted out of park. If this occurs, UFRPA will
return to normal operation when the vehicle is
driven forward above 15 mph (25 km/h).
The ultrasonic sensors are not kept clean.
So be sure to keep your vehicle’s front and rear
bumpers free of mud, dirt, snow, ice and slush.
For cleaning instructions, seeWashing Your
Vehicle on page 444. If after cleaning the front
and rear bumpers and driving forward at a
speed of at least 15 mph (25 km/h), the DIC
displays the PARKING ASSIST OFF message,
see your dealer/retailer.
Other conditions that may affect system
performance include vibrations from a
jackhammer or the compression of air
brakes on a very large truck or other
mechanical devices that interfere with
UFRPA performance.
When UFRPA is disabled without driver action
and the driver attempts to turn UFRPA back
on using the Driver Information Center (DIC),
the PARKING ASSIST ON option will not be
selectable if the necessary conditions stated
above for normal system operation are not met.
As always, drivers should use care when backing
up a vehicle. Always look behind you, being
sure to check for other vehicles, obstructions
and blind spots.
For Driver Information Center messages related
to UFRPA, seeDIC Warnings and Messages
on page 246.
If the bumper is damaged, your UFRPA system
may not work properly. Take the vehicle to
your dealer/retailer to repair the system.
207

Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages on
your vehicle. The pictures help to locate them.
Warning lights and gages can signal that something
is wrong before it becomes serious enough to
cause an expensive repair or replacement. Paying
attention to the warning lights and gages could also
save you or others from injury.
Warning lights come on when there may be or is
a problem with one of your vehicle’s functions.
As the details show on the next few pages, some
warning lights come on briey when you start
the engine just to let you know they are working.
If you are familiar with this section, you should
not be alarmed when this happens.Gages can indicate when there may be or is a
problem with one of your vehicle’s functions.
Often gages and warning lights work together
to let you know when there is a problem with
your vehicle.
When one of the warning lights comes on and
stays on as you are driving, or when one of
the gages shows there may be a problem, check
the section that tells you what to do about it.
Please follow this manual’s advice. Waiting to
do repairs can be costly and even dangerous.
So please get to know your vehicle’s warning lights
and gages. They can be a big help.
Your vehicle may also have a Driver Information
Center (DIC) that works along with the warning
lights and gages. SeeDriver Information Center
(DIC) on page 240for more information.
222

Airbag Readiness Light
There is an airbag readiness light on the instrument
panel, which shows the airbag symbol. The system
checks the airbag’s electrical system for
malfunctions. The light tells you if there is an
electrical problem. The system check includes the
airbag sensors, the airbag modules, the wiring and
the diagnostic module. For more information on the
airbag system, seeAirbag System on page 70.
This light will come on
when you start your
vehicle, and it will ash
for a few seconds.
Then the light should
go out. This means
the system is ready.
If the airbag readiness light stays on after you
start the vehicle or comes on when you are driving,
your airbag system may not work properly.
Have your vehicle serviced right away.{CAUTION:
If the airbag readiness light stays on after
you start your vehicle, it means the airbag
system may not be working properly. The
airbags in your vehicle may not inate in
a crash, or they could even inate without
a crash. To help avoid injury to yourself
or others, have your vehicle serviced right
away if the airbag readiness light stays on
after you start your vehicle.
The airbag readiness light should ash for a
few seconds when you turn the vehicle on. If the
light does not come on then, have it xed so it
will be ready to warn you if there is a problem.
If there is a problem with the airbag system in
your vehicle, the SERVICE AIR BAG message will
appear on the DIC display. SeeDIC Warnings
and Messages on page 246andSafety Belt
Pretensioners on page 41for more information.
226

Charging System Light
When you turn the
engine on, this light
will come on briey to
show that the generator
and battery charging
systems are working
properly.
If this light stays on, your vehicle needs service.
You should take your vehicle to the dealer/retailer
at once. To save the battery until you get there,
turn off all accessories. SeeDIC Controls and
Displays on page 240for more information.
Brake System Warning Light
Your vehicle’s hydraulic brake system is divided
into two parts. If one part isn’t working, the
other part can still work and stop you. For good
braking, though, you need both parts working well.
If the warning light comes on, there is a brake
problem. Have your brake system inspected
right away.
This light should come on briey when you turn
the engine on. If it does not come on then, have it
xed so it will be ready to warn you if there is a
problem.
United StatesCanada
229

When the ignition is on, the brake system warning
light will also come on when you set your parking
brake. The light will stay on if your parking brake
does not release fully. If it stays on after your
parking brake is fully released, it means you
have a brake problem.
If the light comes on while you are driving, pull
off the road and stop carefully. You may notice that
the pedal is harder to push, or the pedal may go
closer to the oor. It may take longer to stop.
If the light is still on, have the vehicle towed for
service. SeeTowing Your Vehicle on page 340.
{CAUTION:
Your brake system may not be working
properly if the brake system warning
light is on. Driving with the brake system
warning light on can lead to an accident.
If the light is still on after you have pulled
off the road and stopped carefully, have
the vehicle towed for service.
Anti-Lock Brake System Warning
Light
With the anti-lock brake
system, the light will
come on when your
engine is started
and may stay on for
several seconds.
That is normal.
If the ABS warning light comes on and stays on,
there may be a problem with the antilock portion
of the brake system. If the red BRAKE light is
not on, you still have brakes, but you do not have
antilock brakes. SeeBrake System Warning
Light on page 229.
If the light stays on, turn the ignition to OFF or
ACCESSORY. If the light comes on when you are
driving, stop as soon as possible and turn the
ignition off. Then start the engine again to reset
the system. If the light still stays on, or comes on
again while you are driving, your vehicle needs
service. If the regular brake system warning light
is not on, you still have brakes, but you do not
have anti-lock brakes.
230