Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
210 DRIVING AND OPERATING
.Replace the vehicle's tires with the
same TPC Spec number molded into
the tire's sidewall near the size.
.Follow recommended scheduled
maintenance.
Distracted Driving
Distraction comes in many forms and
can take your focus from the task of
driving. Exercise good judgment and
do not let other activities divert your
attention away from the road. Many
local governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area.
To avoid distracted driving, keep your
eyes on the road, keep your hands on
the steering wheel, and focus your
attention on driving.
.Do not use a phone in demanding
driving situations. Use a hands-free
method to place or receive
necessary phone calls.
.Watch the road. Do not read, take
notes, or look up information on
phones or other electronic devices.
.Designate a front seat passenger to
handle potential distractions.
.Become familiar with vehicle
features before driving, such as
programming favorite radio stations
and adjusting climate control and
seat settings. Program all trip
information into any navigation
device prior to driving.
.Wait until the vehicle is parked to
retrieve items that have fallen to
the floor.
.Stop or park the vehicle to tend to
children.
.Keep pets in an appropriate carrier
or restraint.
.Avoid stressful conversations while
driving, whether with a passenger or
on a cell phone.
{Warning
Taking your eyes off the road too
long or too often could cause a
crash resulting in injury or death.
Focus your attention on driving.
Refer to the infotainment section for
more information on using that
system and the navigation system,
if equipped, including pairing and
using a cell phone.
Defensive Driving
Defensive driving means “always
expect the unexpected.” The first step
in driving defensively is to wear the
seat belt. See Seat Belts040.
.Assume that other road users
(pedestrians, bicyclists, and other
drivers) are going to be careless and
make mistakes. Anticipate what
they may do and be ready.
.Allow enough following distance
between you and the driver in front
of you.
.Focus on the task of driving.
Impaired Driving
Death and injury associated with
impaired driving is a global tragedy.
{Warning
Drinking alcohol or taking drugs
and then driving is very dangerous.
Your reflexes, perceptions,
attentiveness, and judgment can be
affected by even a small amount of
alcohol or drugs. You can have a
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Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
212 DRIVING AND OPERATING
If the steering wheel is turned until it
reaches the end of its travel and is
held against that position for an
extended period of time, power
steering assist may be reduced.
Normal use of the power steering
assist should return when the system
cools down.
See your dealer if there is a problem.
Curve Tips
.Take curves at a reasonable speed.
.Reduce speed before entering a
curve.
.Maintain a reasonable steady speed
through the curve.
.Wait until the vehicle is out of the
curve before accelerating gently into
the straightaway.
Steering in Emergencies
.There are some situations when
steering around a problem may be
more effective than braking.
.Holding both sides of the steering
wheel allows you to turn
180 degrees without removing
a hand.
.The Antilock Brake System (ABS)
allows steering while braking.
Off-Road Recovery
The vehicle's right wheels can drop off
the edge of a road onto the shoulder
while driving. Follow these tips:1. Ease off the accelerator and then, if there is nothing in the way, steer
the vehicle so that it straddles the
edge of the pavement.
2. Turn the steering wheel about one-eighth of a turn, until the right
front tire contacts the
pavement edge. 3. Turn the steering wheel to go
straight down the roadway.
Loss of Control
Skidding
There are three types of skids that
correspond to the vehicle's three
control systems:
.Braking Skid —wheels are not
rolling.
.Steering or Cornering Skid —too
much speed or steering in a curve
causes tires to slip and lose
cornering force.
.Acceleration Skid —too much
throttle causes the driving wheels
to spin.
Defensive drivers avoid most skids by
taking reasonable care suited to
existing conditions, and by not
overdriving those conditions. But
skids are always possible.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
214 DRIVING AND OPERATING
{Warning
Prior to each track event and again
before returning to public roads,
tighten the wheel nuts with a
torque wrench to the proper torque
specification. Wheel nuts that are
improperly or incorrectly tightened
can cause the wheels to become
loose or come off, resulting in a
crash. SeeCapacities and
Specifications 0424 for wheel nut
torque specifications.
Caution
Low oil levels can damage the
engine. If using the vehicle for
competitive driving, the engine may
use more oil than it would with
normal use. Check the oil level
often during competitive driving.
Competitive Driving Mode can be
selected. See Driver Mode Control
0 258.
Seat Belts
Lap-Shoulder Belt
If equipped, the driver seat belt has an
Automatic Locking Retractor (ALR).
This feature is useful in performance
driving scenarios where the driver
wants to be held in the seat more
tightly to take advantage of the
aggressive bolstering of the seat.
1. Move the seat 8-10 cm (3-4 in) rearward from the normal driving
position.
2. Pull the driver shoulder belt out as far as it will go, until it stops, to set
the lock. While holding the
shoulder belt in this position,
buckle the belt.
When the shoulder belt is released,
the retractor will make a ratchet
sound when it retracts. When the
retractor lock is set, the belt can be
tightened but not pulled out of the
retractor.
3. Adjust the belt, and then move the seat forward 8-10 cm (3-4 in) to
the desired driving position. This will secure the belt. The belt fit
should be tight, but not
uncomfortable.
To unlatch the belt, press the
button on the buckle. The belt
should return to its stowed
position.
Axle Fluid
Axles must have 2 400 km (1,500 mi)
before being used in track driving.
The rear axle fluid temperatures may
be higher than when driving in severe
conditions. Drain and refill with new
fluid after the first racing or
competitive driving event, and then
after every 24 hours of racing or
competitive driving. See your dealer
for the correct fluid.
Caution
During a first time track or racing
event, high axle temperatures can
occur. Damage could be caused to
the axle and would not be covered
by the vehicle warranty. Do not
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Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
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DRIVING AND OPERATING 221
7. With the car on the ground,reinstall the strut rebound stop and
torque it to 25 Y(212 lb in).
8. With the car on the ground, reinstall the Upper Radiator Baffle
and both front shock tower braces.
Torque the fasteners as follows:
A. Front tower brace mounting
bolts to 22 Y(194 lb in).
B. Front strut top mount nuts to 22Y (194 lb in).
9. Complete setting the track alignment per the following track
alignment specifications.
Wheel Alignment
Wheel alignment suggested specs for
track use:
Road Course (V-Series)
.Front: -2.0 deg camber, 0.2 deg
total toe
.Rear: -1.7 deg camber, 0.2 deg
total toe
Road Course (V-Series Blackwing)
.Front: -2.4 deg camber, 0.1 deg
total toe
.Rear: -1.8 deg camber, 0.1 deg
total toe
Tire Inflation Pressure
Guidelines
Tire inflation pressures affect vehicle
handling and tire life, and should be
adjusted for various types of tracks/
courses.
Inspect the tires prior to every track/
course session. Track/course driving
will reduce the tire tread life.
To maximize tire life, drive 800 km
(500 mi) prior to racetrack driving or
complete the minimum track running
that will increase the tire pressures by
35 kPa (5 psi). After this, immediately
let the tires cool to cold pressures.
Tire Inflation Pressure High Speed
See Tire Pressure for High-Speed
Operation 0371.
Tire Inflation Pressure for Track
Driving
For driving on a race course, if your
vehicle is equipped with 255/35ZR18
(94Y) and 275/35ZR18 (99Y) tires, set
cold (stationary) tire pressures to
30 psi. During track sessions, set the pressures at 35 to 38 psi for hot tire
pressures. If pressures exceed 38 psi,
bleed pressures down to 35 to 38 psi.
Return the tires to the recommended
cold tire inflation pressure when track
driving has ended.
Driving and Operating
{Warning
Operating the vehicle at high speeds
can be dangerous. Improper tire
inflation pressure can put
additional strain on the tires and
can cause a sudden failure. Make
sure the tires are in excellent
condition, and use the correct cold
tire inflation pressure for the
vehicle load and track/course.
{Warning
Tracks/courses put high loads on
tires operating at high speed, which
can lead to tire failure if not
inflated properly. Always limit
vehicle cargo to the driver plus one
passenger with no additional cargo.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
222 DRIVING AND OPERATING
{Warning
Track/course loads wear tires both
on the tread and internal to the
tire. When driven in track/course
conditions, even if tread is not worn
down to the treadwear indicator,
tires must be replaced after the
equivalent of two tanks of fuel or
approximately 160 km (100 mi).
Custom Launch Control
(If Equipped)
Custom Launch Control allows the
following parameters for Launch
Control to be modified:
.Launch RPM
.Slip Target (5%–15%)
.Surface Type
To adjust the Launch RPM, all of
these conditions must be met:
.The vehicle must be in Track Mode.
See “Track Mode ”under Driver Mode
Control 0258.
.Performance Traction Management
(PTM) Mode must be enabled. See
Driver Mode Control 0258.
.The steering wheel must be straight.
.The driver door must be closed.
.The transmission must be in D
(Drive) or forward gear.
.The parking brake must not be
engaged.
For more information on Competitive
Driving Mode, see Competitive Driving
Mode 0264.
1. Using the Driver Information
Center (DIC) buttons on the right
side of the steering wheel, navigate
to the Launch Control menu. See
Driver Information Center (DIC)
(Base Level) 0109 or
Driver Information Center (DIC)
(Uplevel) 0112.
2. Press SEL to select Custom.
3. Scroll down to Launch RPM.
4. Adjust the desired RPM: 1200–2400 for automatic
transmissions and 2400–4000 RPM
for manual transmissions.
Manual Transmission
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
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DRIVING AND OPERATING 223
5. Set Slip Target to custom desiredsetting.
.Manual Trans: Apply full
throttle to activate Launch
Control and quickly release the
clutch pedal to launch the
vehicle.
Automatic Transmission
.Auto Trans: Firmly press and
hold the brake pedal to activate
Launch Control.
6. Auto Trans Only - Quickly applyfull throttle. Release the brake
pedal to launch the vehicle.
Line Lock (If Equipped)
{Warning
The vehicle may move unexpectedly
when using Line Lock, which could
cause injury to persons or property
located nearby. Only use Line Lock
on a closed track where there is a
large clear area around all sides of
the vehicle. Be ready to apply the
brakes immediately if the vehicle
begins to move. Do not use Line
Lock in an area that is accessible to
(Continued)
Warning (Continued)
the public or where people or
property are located near the
vehicle.
Caution
Attempting to shift when the drive
wheels are spinning and do not
have traction may cause damage to
the transmission. Damage caused
by misuse of the vehicle is not
covered by the vehicle warranty. Do
not attempt to shift when the drive
wheels do not have traction.
Line Lock allows for locking the front
brakes independently of the rear
brakes. This allows the rear tires to
spin when the throttle is applied.
To enter Line Lock, all of these
conditions must be met:
.The vehicle must be in Track Mode.
.Performance Traction Management
(PTM) Mode must be enabled.
.The steering wheel must be straight.
.The driver door must be closed.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
224 DRIVING AND OPERATING
.The vehicle must be in D (Drive) for
an automatic transmission or
1 (First) gear for a manual
transmission.
.The parking brake must not be
engaged.
.The vehicle must be stopped on
level ground. The accelerator pedal
must not be applied.
1. Using the Driver InformationCenter (DIC) buttons on the right
side of the steering wheel, navigate
to the Line Lock menu within
Launch Control. See Driver
Information Center (DIC) (Base Level)
0 109 or
Driver Information Center (DIC)
(Uplevel) 0112.
2. Press the brake pedal firmly to
move the bar graph to 100%.
3. Release the brake pedal.
4. There are 15 seconds to complete the burnout and exit.
5. To release the brakes and roll out,
press
*and SEL at the same time.
If the burnout is not completed in
15 seconds, torque will be reduced to
idle, the parking brake will be applied,
Line Lock releases, and Custom
Launch Control will be disabled.
Ensure the parking brake is
disengaged to re-enter Launch
Control.
Driving on Wet Roads
Rain and wet roads can reduce vehicle
traction and affect your ability to stop
and accelerate. Always drive slower in
these types of driving conditions and
avoid driving through large puddles
and deep-standing or flowing water.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
226 DRIVING AND OPERATING
{Warning
Coasting downhill in N (Neutral) or
with the ignition off is dangerous.
This can cause overheating of the
brakes and loss of steering assist.
Always have the engine running
and the vehicle in gear.
.Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the center line.
.Be alert on top of hills; something
could be in your lane (e.g., stalled
car, crash).
.Pay attention to special road signs
(e.g., falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.
Winter Driving
Driving on Snow or IceCaution
To avoid damage to the wheels and
brake components, always clear
snow and ice from inside the
wheels and underneath the vehicle
before driving.
Snow or ice between the tires and the
road creates less traction or grip, so
drive carefully. Wet ice can occur at
about 0 °C (32 °F) when freezing rain
begins to fall. Avoid driving on wet ice
or in freezing rain until roads can be
treated.
For slippery road driving:
.Accelerate gently. Accelerating too
quickly causes the wheels to spin
and makes the surface under the
tires slick.
.Turn on Traction Control. See
Traction Control/Electronic Stability
Control 0257.
.Antilock Brake System (ABS)
improves vehicle stability during
hard stops, but the brakes should be
applied sooner than when on dry
pavement. See Antilock Brake System
(ABS) 0253.
See Driver Mode Control 0258.
.Allow greater following distance and
watch for slippery spots. Icy patches
can occur on otherwise clear roads
in shaded areas. The surface of a
curve or an overpass can remain icy
when the surrounding roads are
clear. Avoid sudden steering
maneuvers and braking while
on ice.
.Turn off cruise control.
Blizzard Conditions
Stop the vehicle in a safe place and
signal for help. Stay with the vehicle
unless there is help nearby. If possible,
use Roadside Service. See Roadside
Service 0432. To get help and keep
everyone in the vehicle safe:
.Turn on the hazard warning
flashers.
.Tie a red cloth to an outside mirror.