engine CADILLAC ATS COUPE 2015 1.G Workshop Manual

Black plate (19,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
Driving and Operating 9-19
Starting Procedure (Keyless
Access)
1. With the Keyless Accesssystem, the RKE transmitter
must be in the vehicle. Press the
ENGINE START/STOP button
with the brake pedal applied.
When the engine begins
cranking, let go of the button.
The idle speed will go down as
the engine gets warm. Do not
race the engine immediately
after starting it.
If the RKE transmitter is not in
the vehicle, if there is
interference, or the RKE battery
is low, the Driver Information
Center (DIC) will display a
message. See Remote Keyless
Entry (RKE) System Operation
on page 2-2 andKey and Lock
Messages on page 5-36.{Caution
Cranking the engine for long
periods of time, by pressing the
ENGINE START/STOP button
immediately after cranking has
ended, can overheat and damage
the cranking motor, and drain the
battery. Wait at least 15 seconds
between each try, to let the
cranking motor cool down.
2. If the engine does not start after five to 10 seconds, especially in
very cold weather (below −18°C
or 0°F), it could be flooded with
too much gasoline. Try pushing
the accelerator pedal all the way
to the floor and holding it there
as you press the ENGINE
START/STOP button, for up to a
maximum of 15 seconds. Wait at
least 15 seconds between each
try, to allow the cranking motor
to cool down. When the engine
starts, let go of the button and
the accelerator. If the vehicle starts briefly but then stops
again, do the same thing. This
clears the extra gasoline from
the engine. Do not race the
engine immediately after starting
it. Operate the engine and
transmission gently until the oil
warms up and lubricates all
moving parts.
Engine Heater
Vehicles with the engine coolant
heater can use this option in cold
weather conditions at or below
−18°C (0°F) for easier starting and
better fuel economy during engine
warm-up. Plug in the coolant heater
at least four hours before starting
your vehicle. An internal thermostat
in the plug-end of the cord may exist
which will prevent engine coolant
heater operation at temperatures
above
−18°C (0°F).

Black plate (20,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
9-20 Driving and Operating
To Use the Engine Coolant
Heater
1. Turn off the engine.
2. Open the hood and unwrap theelectrical cord. The cord is
clipped to the diagonal brace on
the passenger side of the engine
compartment.
Check the heater cord for
damage. If it is damaged, do not
use it. See your dealer for a
replacement. Inspect the cord for
damage yearly.
3. Plug it into a normal, grounded 110-volt AC outlet.
{Warning
Improper use of the heater cord
or an extension cord can damage
the cord and may result in
overheating and fire.
.Plug the cord into a
three-prong electrical utility
receptacle that is protected
by a ground fault detection
function. An ungrounded
outlet could cause an electric
shock.
.Use a weatherproof,
heavy-duty, 15 amp-rated
extension cord if needed.
Failure to use the
recommended extension cord
in good operating condition,
or using a damaged heater or
extension cord, could make it
(Continued)
Warning (Continued)
overheat and cause a fire,
property damage, electric
shock, and injury.
.Do not operate the vehicle
with the heater cord
permanently attached to the
vehicle. Possible heater cord
and thermostat damage could
occur.
.While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
.Before starting the vehicle,
unplug the cord, reattach the
cover to the plug, and
securely fasten the cord.
Keep the cord away from any
moving parts.

Black plate (21,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
Driving and Operating 9-21
4. Before starting the engine, besure to unplug and store the
cord as it was before to keep it
away from moving engine parts.
If you do not, it could be
damaged.
Contact your dealer for information
on how long to use the heater in
your particular area.
Retained Accessory
Power (RAP)
These accessories can be used
after the engine is turned off:
.Audio system (up to 10 minutes
or driver door is opened).
.Power windows, sunroof (if
equipped), and power outlets (up
to 10 minutes or any door is
opened).
Shifting Into Park
(Automatic Transmission)
Use this procedure to shift into
P (Park):
1. Hold the brake pedal down and set the parking brake.
See Parking Brake (Electric) on
page 9-30 orParking Brake
(Manual) on page 9-32.
2. Move the shift lever into P (Park) by holding in the button on the
shift lever and pushing the lever
all the way toward the front of
the vehicle.
3. Turn the ignition to LOCK/OFF.
4. Take the Remote Keyless Access (RKE) transmitter
with you.
Leaving the Vehicle with the
Engine Running (Automatic
Transmission)
{Warning
It can be dangerous to leave the
vehicle with the engine running.
It could overheat and catch fire.
It is dangerous to get out of the
vehicle if the shift lever is not fully
in P (Park) with the parking brake
firmly set. The vehicle can roll.
Do not leave the vehicle when the
engine is running. If you have left
the engine running, the vehicle
can move suddenly. You or others
could be injured. To be sure the
vehicle will not move, even when
you are on fairly level ground,
always set the parking brake and
move the shift lever to P (Park).
See Shifting Into Park (Automatic
Transmission) on page 9-21.
(Continued)

Black plate (22,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
9-22 Driving and Operating
Warning (Continued)
If you are towing a trailer, see
Driving Characteristics and
Towing Tips on page 9-68.
If you have to leave the vehicle with
the engine running, the vehicle must
be in P (Park) and the parking brake
set. After shifting into P (Park), try to
move the shift lever without first
pushing the button on the shift lever.
If you can, the shift lever was not
fully locked into P (Park).
Torque Lock (Automatic
Transmission)
Torque lock is when the weight of
the vehicle puts too much force on
the parking pawl in the
transmission. This happens when
parking on a hill and shifting the
transmission into P (Park) is not
done properly and then it is difficult
to shift out of P (Park). To prevent
torque lock, set the parking brake and then shift into P (Park). To find
out how, see "Shifting Into Park"
listed previously.
If torque lock does occur, the
vehicle may need to be pushed
uphill by another vehicle to relieve
the parking pawl pressure, so you
can shift out of P (Park).
Shifting out of Park
This vehicle is equipped with an
electronic shift lock release system.
The shift lock release is designed to
prevent movement of the shift lever
out of P (Park), unless the ignition is
in ON/RUN/START and the brake
pedal is applied.
The shift lock release is always
functional except in the case of an
uncharged or low voltage (less than
9 volt) battery.
If the vehicle has an uncharged
battery or a battery with low voltage,
try charging or jump starting the
battery. See
Jump Starting on
page 10-72. To shift out of P (Park):
1. Apply the brake pedal.
2. Turn the ignition to ON/RUN/
START.
3. Release the parking brake. See Parking Brake (Electric) on
page 9-30 orParking Brake
(Manual) on page 9-32.
4. Press the shift lever button.
5. Move the shift lever.
If unable to shift out of P (Park):
1. Fully release the shift lever button.
2. While holding down the brake pedal, press the shift lever
button again.
3. Move the shift lever.
If the shift lever will not move from
P (Park), consult your dealer or a
professional towing service.

Black plate (23,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
Driving and Operating 9-23
Parking
If the vehicle has a manual
transmission, before getting out of
the vehicle, move the shift lever into
R (Reverse) if parking on a downhill
slope. On a level surface or an
uphill slope, use 1 (First) gear. Apply
the parking brake. Turn the wheels
toward the curb for a downhill slope,
or away from the curb for an uphill
slope. Once the shift lever has been
placed into gear with the clutch
pedal pressed in, turn the ignition to
LOCK/OFF, and release the clutch.
If parking on a hill, or if the vehicle
is pulling a trailer, seeDriving
Characteristics and Towing Tips on
page 9-68.
Parking over Things
That Burn
{Warning
Things that can burn could touch
hot exhaust parts under the
vehicle and ignite. Do not park
over papers, leaves, dry grass,
or other things that can burn.
Engine Exhaust
{Warning
Engine exhaust contains carbon
monoxide (CO) which cannot be
seen or smelled. Exposure to CO
can cause unconsciousness and
even death.
Exhaust may enter the vehicle if:
.The vehicle idles in areas
with poor ventilation (parking
garages, tunnels, deep snow
that may block underbody
airflow or tail pipes).
.The exhaust smells or
sounds strange or different.
.The exhaust system leaks
due to corrosion or damage.
.The vehicle exhaust system
has been modified, damaged,
or improperly repaired.
(Continued)

Black plate (24,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
9-24 Driving and Operating
Warning (Continued)
.There are holes or openings
in the vehicle body from
damage or aftermarket
modifications that are not
completely sealed.
If unusual fumes are detected or
if it is suspected that exhaust is
coming into the vehicle:
.Drive it only with the windows
completely down.
.Have the vehicle repaired
immediately.
Never park the vehicle with the
engine running in an enclosed
area such as a garage or a
building that has no fresh air
ventilation.
Running the Vehicle
While Parked
It is better not to park with the
engine running.
If the vehicle is left with the engine
running, follow the proper steps to
be sure the vehicle will not move.
See Shifting Into Park (Automatic
Transmission) on page 9-21 and
Engine Exhaust on page 9-23. If the
vehicle has a manual transmission,
see Parking on page 9-23.
If parking on a hill and pulling a
trailer, see Driving Characteristics
and Towing Tips on page 9-68.
Automatic
Transmission
P (Park): This position locks the
rear wheels. Use this position when
starting the engine because the
vehicle cannot move easily.

Black plate (25,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
Driving and Operating 9-25
{Warning
It is dangerous to get out of the
vehicle if the shift lever is not fully
in P (Park) with the parking brake
firmly set. The vehicle can roll.
Do not leave the vehicle when the
engine is running. If you have left
the engine running, the vehicle
can move suddenly. You or others
could be injured. To be sure the
vehicle will not move, even when
you are on fairly level ground,
always set the parking brake and
move the shift lever to P (Park).
SeeShifting Into Park (Automatic
Transmission) on page 9-21 and
Driving Characteristics and
Towing Tips on page 9-68.
Make sure the shift lever is fully in
P (Park) before starting the engine.
The vehicle has an electronic shift
lock release system. Fully apply the
regular brakes first and then press
the shift lever button before shifting from P (Park) with the ignition in ON/
RUN/START. If you cannot shift out
of P (Park), ease pressure on the
shift lever and push the shift lever
all the way into P (Park) as you
maintain brake application. Then
press the shift lever button and
move the shift lever into another
gear. See
Shifting out of Park on
page 9-22.
{Caution
Shifting to R (Reverse) while the
vehicle is moving forward could
damage the transmission. The
repairs would not be covered by
the vehicle warranty. Shift to
R (Reverse) only after the vehicle
is stopped.
R (Reverse): Use this gear to
back up.
At low vehicle speeds, R (Reverse)
can be used to rock the vehicle
back and forth to get out of snow, ice, or sand without damaging the
transmission. See
If the Vehicle Is
Stuck on page 9-10.
N (Neutral): In this position, the
engine does not connect with the
wheels. To restart when the vehicle
is already moving, use N (Neutral)
only. You can also use N (Neutral)
when the vehicle is being towed.
{Warning
Shifting into a drive gear while the
engine is running at high speed is
dangerous. Unless your foot is
firmly on the brake pedal, the
vehicle could move very rapidly.
You could lose control and hit
people or objects. Do not shift
into a drive gear while the engine
is running at high speed.

Black plate (26,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
9-26 Driving and Operating
{Caution
Shifting out of P (Park) or
N (Neutral) with the engine
running at high speed may
damage the transmission. The
repairs would not be covered by
the vehicle warranty. Be sure the
engine is not running at high
speed when shifting the vehicle.
D (Drive): This position is for
normal driving. It provides the best
fuel economy. If you need more
power for passing, and you are:
.Going less than 55 km/h
(35 mph), push the accelerator
pedal about halfway down.
.Going about 55 km/h (35 mph) or
more, push the accelerator all
the way down.
The transmission will shift down
to a lower gear and have more
power. Downshifting the transmission in
slippery road conditions could result
in skidding; see
“Skidding”under
Loss of Control on page 9-5.
{Caution
Spinning the tires or holding the
vehicle in one place on a hill
using only the accelerator pedal
may damage the transmission.
The repair will not be covered by
the vehicle warranty. If you are
stuck, do not spin the tires. When
stopping on a hill, use the brakes
to hold the vehicle in place.
While in Sport Mode, the vehicle
monitors driving behavior, and
automatically enables Performance
Shift Features when spirited driving
is detected. These features maintain
lower transmission gears to
increase available engine braking
and improve acceleration response.
The vehicle will exit these features
and return to normal operation after a short period when no spirited
driving is detected. See
Driver Mode
Control on page 9-36.
Manual Mode
Driver Shift Control (DSC)
{Caution
Driving with the engine at a high
rpm without upshifting while using
Driver Shift Control (DSC), could
damage the vehicle. Always
upshift when necessary while
using DSC.

Black plate (27,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
Driving and Operating 9-27
Vehicles with DSC may either use
the shift lever or the tap shift
controls on the back of the steering
wheel (if equipped) to manually shift
the automatic transmission.
To use DSC using the shift lever:
1. Move the shift lever to the leftfrom D (Drive) to M (Manual
Mode). The transmission will be
in Manual Mode and will hold the
current gear.
2. Move the shift lever forward to upshift or rearward to downshift. 3. To cancel DSC, move the shift
lever back to D (Drive).
Tap Shift
If equipped, the tap shift controls
are on the back of the steering
wheel.
To use DSC using the tap shift
controls:
1. Move the shift lever to the leftfrom D (Drive) to M (Manual
Mode). The transmission will be
in Manual Mode and will hold the
current gear. 2. Pull the control toward you to
shift. Pull the left control to
(−) downshift, and the right
control to (+) upshift.
3. To cancel DSC, move the shift lever back to D (Drive).
Tap Shift Mode can also be used
temporarily while driving in
D (Drive). Pull either the (+) upshift
or (−) downshift control.
To cancel Tap Shift Mode, hold
the (+) upshift control for
two seconds. If no action is taken,
the vehicle returns to automatic
shifting after a brief period of driving
at a steady speed, or when the
vehicle comes to a stop.
While using the DSC feature, the
vehicle will have firmer, quicker
shifting. This can be used for sport
driving, climbing or descending hills,
staying in gear longer, downshifting
for more power, or engine braking.

Black plate (28,1)Cadillac ATS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707477) - 2015 - crc - 9/15/14
9-28 Driving and Operating
The transmission will only allow
shifting into gears appropriate for
the vehicle speed and engine
revolutions per minute (rpm). The
transmission will not automatically
shift to the next lower or higher gear
if the engine rpm is too high or
too low.
If shifting is prevented for any
reason, a DIC message will appear.
SeeTransmission Messages on
page 5-42.
When accelerating the vehicle from
a stop in snowy and icy conditions,
it is suggested to shift into second
gear. A higher gear allows the
vehicle to gain more traction on
slippery surfaces. See Driver Mode
Control on page 9-36.Manual Transmission
If equipped, this is the shift pattern
for the manual transmission.
1 (First): Press the clutch pedal
and shift into 1 (First). Slowly let up
on the clutch pedal while pressing
on the accelerator pedal.
After a complete stop, if it is hard to
shift into 1 (First), let up on the
clutch pedal, then press it back
down and shift into 1 (First). 2 (Second):
Press the clutch pedal
and let up on the accelerator pedal,
then shift into 2 (Second). Then,
slowly let up on the clutch pedal
while accelerating.
3 (Third), 4 (Fourth), 5 (Fifth), and
6 (Sixth): Shift into 3 (Third),
4 (Fourth), 5 (Fifth), and 6 (Sixth) the
same as 2 (Second).
To stop, let up on the accelerator
pedal and press the brake pedal.
Just before the vehicle stops, press
the clutch pedal and the brake
pedal, and shift to Neutral.
Neutral: Use this position when
you start or idle the engine. The
shift lever is in Neutral when it is
centered in the shift pattern, not in
any gear.
R (Reverse): To back up, press
down the clutch pedal, completely
stop the vehicle, and shift into
R (Reverse). Let up on the clutch
pedal slowly while pressing the
accelerator pedal.