2003 CADILLAC CTS service

2-96
Sport Mode Light (If Equipped)
This light will come on
when the sport mode is
in use.
When you turn off the sport mode, the light will go out.
If it stays on, your vehicle may need service. See your
dealer. See ªSport Modeº listed previously in this
section for more information.
Winter Driving Mode Light (If Equipped)
This light will come on
when the winter driving
mode feature is in use.
When you turn off the winter driving mode feature, the
light will go out. If it stays on, your vehicle may need
service. See your dealer. See ªWinter Driving Modeº
listed previously in this section for more information.
Security Light
For information regarding
this light, see ªTheft
Deterrent
-Systemº listed
previously in this section.

2-109
Change Trans (Transmission) Fluid
This symbol appears
with the Change Trans
Fluid message.
This message indicates that the life of the transmission
fluid has expired and it should be changed within
200 miles. See ªMaintenance Scheduleº and
ªRecommended Fluids and Lubricantsº in the Index
for the proper fluid and change intervals.
When you reset the Change Trans Fluid message by
clearing it from the display, you still must reset the
transmission fluid life monitor separately. For more
information on resetting the transmission fluid life
monitor, see ªTransmission Fluid Life Monitor, How to
Resetº in the Index.Check Brake Fluid This symbol appears
with the Check Brake
Fluid message.
This message will display if the ignition is in ON to
inform the driver that the brake fluid level is low. Have
the brake system serviced by a technician as soon as
possible. See ªBrake System Warning Lightº in
the Index.

2-110
Check Coolant Level
This symbol appears
with the Check Coolant
Level message.
This message will appear when there is a low level of
engine coolant. Have the cooling system serviced by a
technician as soon as possible. See ªEngine Coolantº in
the Index for more information.
Check Gas Cap
This symbol appears
with the Check Gas
Cap message.
When this message appears on the display, the gas cap
has not been fully tightened. You should recheck the gas
cap to ensure that it's on and tightened properly.Check Washer Fluid
This symbol appears
with the Check Washer
Fluid message.
When this message appears on the display, it means that
your vehicle is low on windshield washer fluid. You
should refill the tank as soon as possible. See
ªWindshield Washer Fluidº in the Index for more
information.
Driver Door Ajar
This symbol appears
with the Driver Door
Ajar message.
When this message appears on the display, it means that
the driver's door was not closed completely. You should
make sure that the driver's door is closed completely.

2-116
Right Rear Door Ajar
This symbol appears
with the Right Rear Door
Ajar message.
When this message appears on the display, the right rear
door it means that the passenger's side rear door was not
closed completely. You should check to make sure that
the door is closed completely.Service AC (Air Conditioning) SystemThis symbol appears
with the Service AC
System message.
This message appears when the electronic sensors that
control the air conditioning and heating systems are no
longer working. Have the climate control system
serviced if you notice a drop in heating and air
conditioning efficiency.

2-117
Service Air Bag
This symbol appears
with the Service Air
Bag message.
There is a problem with the air bag system when this
message appears. Have your vehicle serviced by a
qualified technician at your dealership immediately.
See ªAir Bag Readiness Lightº in the Index for more
information.
Service Charging System
This symbol appears with
the Service Charging
System message.
This message will display when a problem with the
charging system has been detected. Have your vehicle
serviced at your dealership.Service Electrical System
This symbol appears with
the Service Electrical
System message.
This message will display if an electrical problem has
occurred within the Powertrain Control Module (PCM)
or the ignition switch. Have your vehicle serviced by
your dealership.
Service Fuel System
This symbol appears
with the Service Fuel
System message.
The Powertrain Control Module (PCM) has detected a
problem within the fuel system when this message
appears. Have your vehicle serviced by your dealership.

2-118
Service Idle Control
This symbol appears
with the Service Idle
Control message.
A problem with the idle control has occurred when this
message displays. Have your vehicle serviced by your
dealership.Service Stability Sys MessageThis symbol appears
with the Service Stability
System message.
Your vehicle may be equipped with a vehicle stability
enhancement system called Stabilitrak.
See ªStabilitrakº in the Index. The Service Stability Sys
message will be displayed if there has been a problem
detected with Stabilitrak (if equipped).
If the Service Stability Sys message comes on while you
are driving, pull off the road as soon as possible and stop
carefully. Try resetting the system by turning the
ignition off then back on. If the Service Stability Sys
message still stays on or comes back on again while you
are driving, your vehicle needs service. Have the
Stabilitrak system inspected as soon as possible.

2-120
Stability Sys Ready Message
This symbol appears
with the Stability System
Ready message.
The Stability Sys Ready message will be displayed any
time you turn back on Stabilitrak (if equipped) using the
Traction On/Off button. When this message has been
displayed, Stabilitrak is ready to assist you with
directional control of the vehicle if needed.Service Steering SystemThis symbol appears
with the Service Steering
System message.
Your vehicle may be equipped with a speed variable
assist steering system. See ªSpeed Variable Assist
Steeringº in the Index.
The Service Steering System message will be displayed
if a problem is detected with the speed variable assist
steering system. When this message is displayed, you
may notice that the effort required to steer the vehicle
increases or feels ªheavier,º but you will still be able to
steer the vehicle.

2-121
Service Suspension System
This symbol appears with
the Service Suspension
System message.
This message is displayed to indicate that the suspension
system is not operating properly. Have your vehicle
serviced at your dealership.Service Theft SystemThis symbol appears
with the Service Theft
System message.
This message means there is a problem with the
Immobilizer. A fault has been detected in the system
which means that the system is disabled and is not
protecting the vehicle. The vehicle usually restarts,
however, you may want to take your vehicle to your
dealer before turning off the engine.