2011 CADILLAC DTS coolant temperature

Black plate (5,1)Cadillac DTS Owner Manual - 2011
Vehicle Symbol Chart
Here are some additional symbols that may be found on
the vehicle and what they mean. For more information
on the symbol, refer to the Index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
g:Audio Steering Wheel Controls or OnStar®
$: Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam Changer
j:LATCH System Child Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
g:Outside Power Foldaway Mirrors
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
F:Traction Control
M:Windshield Washer Fluid
v

Black plate (8,1)Cadillac DTS Owner Manual - 2011
If the vehicle is left running it will automatically shut
off after 10 minutes unless a time extension has
been done.
To manually shut off a remote start:
.Aim the RKE transmitter at the vehicle and press
the remote start button until the parking lamps
turn off.
.Turn on the hazard warning flashers.
.Turn the ignition switch on and then off.
The remote vehicle start feature provides two separate
starts, each with 10 minutes of engine running, or it
provides one start with 10 minutes of engine running
that may be extended 10 more minutes. If you press
and release the transmitter lock button and then press
and hold the remote start button on the RKE transmitter
again before the first 10 minutes of engine running time
has expired, 10 minutes are added to the remaining
minutes. For example, if the lock button and then
the remote start buttons are pressed again after
five minutes of the engine run time, 10 minutes are
added and you now have 15 minutes of engine running.
The added ten minutes are considered a second remote
vehicle start. Once two remote starts or a single start with a time
extension have been used, the vehicle must be started
with the ignition key before you can use the remote start
feature again.
The remote vehicle start feature will not operate if the
key is in the ignition, the hood is not closed, or if there
is an emission control system malfunction.
The engine will turn off during a remote vehicle start
if the coolant temperature gets too high, or the oil
pressure is too low.
See
Engine Exhaust
on page 3‑33for important safety
information when using remote start in a closed garage.
Remote Start Ready
If your vehicle does not have the remote vehicle start
feature, it may have the remote start ready feature. This
feature allows your dealer to add the manufacturer's
remote vehicle start feature. See your dealer if you
would like to add the manufacturer's remote vehicle
start feature to your vehicle.
3-8

Black plate (2,1)Cadillac DTS Owner Manual - 2011
Section 4 Instrument Panel
Antilock Brake System (ABS) Warning Light . . . 4-51
Traction Control System (TCS) WarningLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51
StabiliTrak
®Indicator Light . . . . . . . . . . . . . . . . . . . . . 4-52
Lane Departure Warning (LDW) Light . . . . . . . . . . 4-52
Engine Coolant Temperature Warning Light . . . . 4-53
Engine Coolant Temperature Gauge . . . . . . . . . . . 4-53
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54
Malfunction Indicator Lamp . . . . . . . . . . . . . . . . . . . . 4-54
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58
Lights On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58
Cruise Control Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58
Highbeam On Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-59 Driver Information Center (DIC)
. . . . . . . . . . . . . . . . . .4-59
DIC Operation and Displays . . . . . . . . . . . . . . . . . . . 4-60
DIC Warnings and Messages . . . . . . . . . . . . . . . . . . 4-65
DIC Vehicle Customization . . . . . . . . . . . . . . . . . . . . 4-77
Audio System(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-86
Setting the Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-87
Radio(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-90
Using an MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-100
XM Radio Messages . . . . . . . . . . . . . . . . . . . . . . . . . 4-105
Navigation/Radio System . . . . . . . . . . . . . . . . . . . . . 4-106
Bluetooth
®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-107
Theft-Deterrent Feature . . . . . . . . . . . . . . . . . . . . . . . 4-114
Audio Steering Wheel Controls . . . . . . . . . . . . . . . 4-114
Radio Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-115
Backglass Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-116
XM™ Satellite Radio Antenna System . . . . . . . . 4-116
4-2

Black plate (53,1)Cadillac DTS Owner Manual - 2011
Engine Coolant Temperature
Warning Light
The engine coolant
temperature warning light
comes on when the
engine is very hot.
This light also comes on briefly when the vehicle is
started.
If the light does not go out or comes on and stays on
while driving, there may be a problem with the cooling
system. Driving with engine coolant temperature light on
could cause the vehicle to overheat, see Overheated
Engine Protection Operating Mode
on page 6‑31. See
Engine Overheatingon page 6‑29and DIC Warnings
and Messageson page 4‑65for more information.
Engine Coolant Temperature Gauge
This gauge shows
the engine coolant
temperature.
It indicates when the engine has warmed up and if
the cooling system is operating properly. If the gauge
pointer moves into the shaded area, the engine coolant
is too hot and the engine coolant temperature warning
light comes on. See Engine Overheating
on page 6‑29for more information.
4-53

Black plate (67,1)Cadillac DTS Owner Manual - 2011
DRIVER DOOR OPEN
This symbol appears with
this message.
This message displays when the driver door is not
closed completely. Make sure that the door is closed
completely.
ENGINE HOT –A/C
(Air Conditioning) OFF
This message displays when the engine coolant
becomes hotter than the normal operating temperature.
See Engine Coolant Temperature Gauge
on
page 4‑53. To avoid added strain on a hot engine, the
air conditioning compressor automatically turns off.
When the coolant temperature returns to normal, the
air conditioning compressor turns back on. You can
continue to drive your vehicle. If this message continues to appear, have the system
repaired by your dealer as soon as possible to avoid
damage to the engine.
ENGINE OVERHEATED IDLE ENGINE
Notice:
If you drive your vehicle while the engine is
overheating, severe engine damage may occur. If an
overheat warning appears on the instrument panel
cluster and/or DIC, stop the vehicle as soon as
possible. Do not increase the engine speed above
normal idling speed. See Engine Overheating
on
page 6‑29for more information.
This message displays when the engine coolant
temperature is too hot. Stop and allow the vehicle
to idle until it cools down. See Engine Coolant
Temperature Warning Light on page 4‑53.
See Overheated Engine Protection Operating Mode
on
page 6‑31for information on driving to a safe place in
an emergency.
4-67

Black plate (26,1)Cadillac DTS Owner Manual - 2011
Engine Coolant
The cooling system in the vehicle is filled with
DEX-COOL®engine coolant. This coolant is designed
to remain in the vehicle for five years or 150,000 miles
(240 000 km), whichever occurs first.
The following explains the cooling system and how to
check and add coolant when it is low. If there is a
problem with engine overheating, see Engine
Overheating on page 6‑29.
What to Use
{WARNING:
Adding only plain water or some other liquid to the
cooling system can be dangerous. Plain water
and other liquids, can boil before the proper
coolant mixture will. The vehicle's coolant warning
system is set for the proper coolant mixture. With
plain water or the wrong mixture, the engine could
get too hot but you would not get the overheat
warning. The engine could catch fire and you or
others could be burned. Use a 50/50 mixture of
clean, drinkable water and DEX-COOL coolant. Use a 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant. If using this mixture, nothing else
needs to be added. This mixture:
.Gives freezing protection down to −34°F (−37°C),
outside temperature.
.Gives boiling protection up to 265°F (129°C),
engine temperature.
.Protects against rust and corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine temperature.
Notice: If an improper coolant mixture is used, the
engine could overheat and be badly damaged. The
repair cost would not be covered by the vehicle
warranty. Too much water in the mixture can freeze
and crack the engine, radiator, heater core, and
other parts.
Notice: If extra inhibitors and/or additives are used
in the vehicle's cooling system, the vehicle could be
damaged. Use only the proper mixture of the engine
coolant listed in this manual for the cooling system.
See Recommended Fluids and Lubricants
on
page 7‑9for more information.
6-26

Black plate (29,1)Cadillac DTS Owner Manual - 2011
4.6L L37 Engine shown, 4.6L LD8 Engine similar
4. With the coolant surge tank cap off, start the engine and let it run until you can feel the upper
radiator hose getting hot. Watch out for the engine
cooling fans.
By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower, add
more of the proper mixture to the coolant surge
tank until the level reaches the FULL COLD mark
on the side of the coolant surge tank.
5. Replace the cap. Be sure the cap is hand‐tight and fully seated. Notice:
If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
If coolant is needed, add the proper DEX-COOL
®
coolant mixture at the coolant recovery tank.
Engine Overheating
The vehicle has several indicators to warn of engine
overheating.
There is an engine temperature warning light and/or
gauge on the instrument panel cluster. See Engine
Coolant Temperature Warning Light
on page 4‑53and
Engine Coolant Temperature Gauge on page 4‑53.
The vehicle may also display a ENGINE OVERHEATED
IDLE ENGINE message or an ENGINE OVERHEATED
STOP ENGINE message displayed in the Driver
Information Center (DIC). See DIC Warnings and
Messages
on page 4‑65for more information. You will
also hear a chime.
The decision may be made not to lift the hood when
this warning appears, but instead get service help right
away. See Roadside Service on page 8‑7.
If the decision is made to lift the hood , make sure the
vehicle is parked on a level surface.
6-29

Black plate (31,1)Cadillac DTS Owner Manual - 2011
If the overheat warning is displayed with no sign of
steam:1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the highest fan speed. Open the windows as
necessary.
3. In heavy traffic, let the engine idle in N (Neutral) while stopped. If it safe to do so, pull off the road,
shift to P (Park) or N (Neutral) and let the
engine idle.
If the temperature overheat gauge is no longer in the
overheat zone or an overheat warning no longer
displays, the vehicle can be driven. Continue to drive
the vehicle slow for about 10 minutes. Keep a safe
vehicle distance from the vehicle in front. If the warning
does not come back on, continue to drive normally.
If the warning continues, pull over, stop, and park the
vehicle right away.
If there is no sign of steam, idle the engine for
three minutes while parked. If the warning is still
displayed, turn off the engine until it cools down. Also,
see "Overheated Engine Protection Operating Mode"
next in this section.Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and the
message ENGINE OVERHEATED STOP ENGINE
is displayed, an overheat protection mode which
alternates firing groups of cylinders helps prevent
engine damage. In this mode, you will notice a loss in
power and engine performance. This operating mode
allows your vehicle to be driven to a safe place in an
emergency. Driving extended miles (km) and/or towing
a trailer in the overheat protection mode should be
avoided.
Notice: After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss, change the oil
and reset the oil life system. See Engine Oil
on
page 6‑15.
6-31