brake DODGE CHALLENGER SRT 2018 Service Manual

WARNING!(Continued)
•The transmission may not engage PARK if the ve-
hicle is moving. Always bring the vehicle to a
complete stop before shifting to PARK, and verify
that the transmission gear position indicator solidly
indicates PARK (P) without blinking. Ensure that the
vehicle is completely stopped, and the PARK posi-
tion is properly indicated, before exiting the vehicle.
• It is dangerous to shift out of PARK or NEUTRAL if
the engine speed is higher than idle speed. If your
foot is not firmly pressing the brake pedal, the
vehicle could accelerate quickly forward or in re-
verse. You could lose control of the vehicle and hit
someone or something. Only shift into gear when the
engine is idling normally and your foot is firmly
pressing the brake pedal.
• Unintended movement of a vehicle could injure
those in or near the vehicle. As with all vehicles, you
should never exit a vehicle while the engine is
running. Before exiting a vehicle, always come to a
complete stop, then apply the parking brake, shift
the transmission into PARK, and turn the ignition
OFF. When the ignition is in the OFF mode, the
(Continued)
WARNING! (Continued)
transmission is locked in PARK, securing the vehicle
against unwanted movement.
• When exiting the vehicle, always make sure the
ignition is in the OFF mode, remove the key fob from
the vehicle, and lock the vehicle.
• Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing children to
be in a vehicle unattended is dangerous for a number
of reasons. A child or others could be seriously or
fatally injured. Children should be warned not to
touch the parking brake, brake pedal or the trans-
mission gear selector.
• Do not leave the key fob in or near the vehicle (or in
a location accessible to children), and do not leave
the ignition in the ACC or ON/RUN mode. A child
could operate power windows, other controls, or
move the vehicle.
CAUTION!
• Before moving the transmission gear selector out of
PARK, you must start the engine, and also press the
(Continued)
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CAUTION!(Continued)
brake pedal. Otherwise, damage to the gear selector
could result.
• DO NOT race the engine when shifting from PARK
or NEUTRAL into another gear range, as this can
damage the drivetrain.
The following indicators should be used to ensure that you
have properly engaged the transmission into the PARK
position:
• When shifting into PARK, push the lock button on the
gear selector and firmly move the selector all the way
forward until it stops and is fully seated.
• Look at the transmission gear position display and
verify that it indicates the PARK position (P), and is not
blinking.
• With the brake pedal released, verify that the gear
selector will not move out of PARK.
REVERSE (R)
This range is for moving the vehicle backward. Shift into
REVERSE only after the vehicle has come to a complete
stop. NEUTRAL (N)
Use this range when the vehicle is standing for prolonged
periods with the engine running. Apply the parking brake
and shift the transmission into PARK if you must exit the
vehicle.
WARNING!
Do not coast in NEUTRAL and never turn off the
ignition to coast down a hill. These are unsafe practices
that limit your response to changing traffic or road
conditions. You might lose control of the vehicle and
have a collision.
CAUTION!
Towing the vehicle, coasting, or driving for any other
reason with the transmission in NEUTRAL can cause
severe transmission damage.
Refer to “Recreational Towing” in “Starting And Op-
erating” and “Towing A Disabled Vehicle” in “In Case
Of Emergency” for further information.
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STARTING AND OPERATING 225

control features. Please refer to “SRT Drive Modes” in
“Multimedia” for further information.
2. Slide the RPM slider bar on the touchscreen. This screenwill allow you to adjust your launch RPM’s for opti-
mum launch/traction.
3. Press the “Activate Launch Mode” button on the touch- screen.
4. Make sure the vehicle is not moving.
5. Make sure the steering wheel is pointing straight.
6. Hold the brake and make sure the vehicle is in “DRIVE”.
7. While holding the brake, rapidly apply and hold the accelerator pedal to wide open throttle. The engine
speed will hold at the RPM that was set in the “Launch
RPM Set-up” screen.
NOTE: Messages will appear in the instrument cluster to
inform the driver if one or more of the above conditions
have not been met.
8. When conditions 4 through 7 have been met, the instru- ment cluster display will read “Launch Ready Release
Brake”.
9. Keep the vehicle pointed straight. Launch mode will be active until the vehicle reaches
62 mph (100 km/h), at which point the ESC system will
return to its current ESC mode.
Launch mode will abort before launch completion, display
“Launch Aborted” in the cluster under any the following
conditions:
•
The accelerator pedal is released during launch.
• The ESC system detects that the vehicle is no longer
moving in a straight line.
• The “ESC OFF” button is pushed to change the system
to another mode.
NOTE: After launch mode has been aborted, ESC will
return to its current ESC mode.
Manual Transmission — If Equipped
Vehicles with a manual transmission have an adjustable
launch RPM controlled through the Uconnect system.
Launch Mode is only available when the following proce-
dure is followed:
1. Push the LAUNCH button on the center stack switch bank.
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STARTING AND OPERATING 231

NOTE:Pushing the SRT button on the center stack or
pressing the “Apps” button on the touchscreen are two
other options to access launch mode features. Please refer
to “Uconnect Settings” in “Multimedia” for further infor-
mation.
2. Slide the RPM slider bar on the touchscreen. This screen will allow you to adjust your launch RPM’s for opti-
mum launch/traction.
3. Press the “Activate Launch Mode” button on the touch- screen.
4. Make sure the vehicle is not moving.
5. Make sure the steering wheel is pointing straight.
6. Fully depress the clutch pedal and make sure the vehicle is in first gear.
7. While holding the clutch depressed, rapidly apply and hold the accelerator pedal to wide open throttle. The
engine speed will hold at the pre-selected launch RPM.
The engine speed will hold at the RPM that was set in
the “Launch RPM Set-up” screen.
NOTE: Messages will appear in the instrument cluster to
inform the driver if one or more of the above conditions
have not been met. 8. When conditions 4 through 7 have been met, the instru-
ment cluster display will read “Launch Ready Release
Clutch”. Release the clutch quickly and continue to hold
wide open throttle to launch execute shifts. Refer to
“Manual Transmission – If Equipped” in this section for
further information.
Release the clutch and continue to hold wide open throttle
to launch.
9. Keep the vehicle pointed straight.
Launch mode will be active until the vehicle reaches
62 mph (100 km/h), at which point the ESC system will
return to its current ESC mode.
Launch mode will abort before launch completion, display
“Launch Aborted” in the cluster and return to ESC Full ON
under any the following conditions:
• The brake is applied during launch.
• The ESC system detects that the vehicle is no longer
moving in a straight line.
• The “ESC OFF” button is pushed to change the ESC
system to another mode.
232 STARTING AND OPERATING

NOTE:After launch mode has been aborted, ESC will
return to its current ESC mode.
CAUTION!
Do not attempt to shift when the drive wheels are
spinning and do not have traction. Damage to the
transmission may occur.
Guidelines For Track Use
NOTE: Because of the extreme conditions encountered
during track use, any damage or wear associated with
track use may not be covered by warranty.
• If your SRT vehicle is equipped with Drive Modes, they
will alter the vehicle’s performance in various driving
situations. It is recommended that your vehicle operates
in SPORT or TRACK modes during the track event.
• Prior to each track event/day, verify all fluids are at the
correct levels. Refer to “Fluid Capacities” in “Technical
Specifications” for further information.
• Prior to each track event, verify the front and rear brake
pads have more than ½ pad thickness remaining. If the
brake pads require changing, please burnish prior to
track outing at full pace. NOTE:
Use of DOT 4 brake fluid is suggested for extended
track usage due to increased thermal capacity.
• At the conclusion of each track event, it is recommended
that a brake bleed procedure is performed to maintain
the pedal feel and stopping capability of your Brembo
High Performance brake system.
• It is recommended that each track outing should end
with a minimum of one cool down lap using minimal
braking.
• If equipped with a removable lower front fascia grille, it
is recommended to remove it for track use during
warm/hot weather to improve cooling airflow to critical
powertrain and cooling system components.
• All SRT vehicles are track tested for 24 hours of endur-
ance. However, it is recommended that suspension
system, brake system, prop shaft, and ½ shaft boots
should be checked for wear or damage after every track
event.
• Track usage results in increased operating temperatures
of the engine, transmission, clutch – if equipped, drive-
line and brake system. This may affect noise (NVH)
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STARTING AND OPERATING 233

countermeasures designed into your vehicle. New com-
ponents may need to be installed to return the system to
the original NVH performance.
• Tire pressure:
• 40psi (276kpa) hot, recommended 32psi (221kpa) front,
30psi (207 kpa) rear cold
NOTE: It is recommended that you target 40psi (276kpa)
Hot Tire Pressure at the conclusion of each track session.
Starting at 32psi (221kpa) Front and 30psi (207 kpa) Rear
Cold and adjusting based on ambient & track conditions is
recommended. Tire pressure can be monitored via the
instrument cluster display and can assist with adjustments.
Track burnishing your brakes:
To avoid “green lining fade” during track use, the brake
pads and rotors must have a thermal burnish for factory
installed components or when new brake friction compo-
nents are installed:
1. Use one track session to burnish brakes by driving at 75% speed. Brake at approximately 0.60-0.80g max with-
out ABS intervention.
2. Lap the track in this manner until you start smelling the brakes. Continue for another half lap at speed, then do a two lap cool down with minimal brake applies. Make
sure the brakes are not smoking. If they are, do another
cool down lap.
3. Do not continue for more than one full burnishing lap after you start smelling the brakes. Do not get them
smoking heavily. This will get them too hot and affect
their life negatively in future track use.
4. Allow vehicle to sit and cool in the paddock for at least 30 min. If an infrared thermal gun is available, allow
rotors to cool to 200°F (93.3°C) before going back out.
5. There should be a thin ash layer when inspecting the pads installed in the caliper. Having the ash layer go
more than half the thickness of the pad material indi-
cates too aggressive of a burnish.
6. Sometimes, a second burnish session is required. If the pads start smelling in the next track session, reduce
speed and braking decel to burnish targets and follow
steps two through four.
7. New pads installed on old rotors still need to be burnished. New rotors installed with old pads should be
burnished at the track or street driven for 300 city miles
to develop an adequate lining transfer layer on the rotor
surface prior to track use.
234 STARTING AND OPERATING

WARNING!
Speed Control can be dangerous where the system
cannot maintain a constant speed. Your vehicle could
go too fast for the conditions, and you could lose
control and have an accident. Do not use Speed Control
in heavy traffic or on roads that are winding, icy,
snow-covered or slippery.
To Resume Speed
To resume a previously set speed, push the RES button and
release. Resume can be used at any speed above 20 mph
(32 km/h).
To Deactivate
A soft tap on the brake pedal, pushing the CANC button,
or normal brake pressure while slowing the vehicle will
deactivate the Speed Control without erasing the set speed
from memory.
Pushing the on/off button or turning the ignition switch
OFF erases the set speed from memory.
ADAPTIVE CRUISE CONTROL (ACC) — IF
EQUIPPED
Adaptive Cruise Control (ACC) increases the driving con-
venience provided by cruise control while traveling on
highways and major roadways. However, it is not a safety
system and not designed to prevent collisions.Speed
Control function performs differently. Please refer to the
proper section within this chapter.
ACC will allow you to keep cruise control engaged in light
to moderate traffic conditions without the constant need to
reset your cruise control. ACC utilizes a radar sensor
designed to detect a vehicle directly ahead of you.
NOTE:
• If the sensor does not detect a vehicle ahead of you, ACC
will maintain a fixed set speed.
• If the ACC sensor detects a vehicle ahead, ACC will
apply limited braking or acceleration (not to exceed the
original set speed) automatically to maintain a preset
following distance, while matching the speed of the
vehicle ahead.
240 STARTING AND OPERATING

The Cruise Control system has two control modes:
•Adaptive Cruise Control mode for maintaining an ap-
propriate distance between vehicles.
• Normal (fixed speed) cruise control mode is for cruising
at a constant preset speed. For additional information,
refer to “Normal (Fixed Speed) Cruise Control Mode” in
this section.
NOTE: The normal (fixed speed) cruise control will not
react to preceding vehicles. Always be aware of the mode
selected.
You can change the mode by using the Cruise Control
buttons. The two control modes function differently. Al-
ways confirm which mode is selected.
WARNING!
• Adaptive Cruise Control (ACC) is a convenience
system. It is not a substitute for active driving
involvement. It is always the driver ’s responsibility
to be attentive of road, traffic, and weather condi-
tions, vehicle speed, distance to the vehicle ahead;
and, most importantly, brake operation to ensure safe
(Continued)
WARNING! (Continued)
operation of the vehicle under all road conditions.
Your complete attention is always required while
driving to maintain safe control of your vehicle.
Failure to follow these warnings can result in a
collision and death or serious personal injury.
• The ACC system:
• Does not react to pedestrians, oncoming vehicles,
and stationary objects (e.g., a stopped vehicle in a
traffic jam or a disabled vehicle).
• Cannot take street, traffic, and weather conditions
into account, and may be limited upon adverse
sight distance conditions.
• Does not always fully recognize complex driving
conditions, which can result in wrong or missing
distance warnings.
You should switch off the ACC system:
• When driving in fog, heavy rain, heavy snow, sleet,
heavy traffic, and complex driving situations (i.e., in
highway construction zones).
(Continued)
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STARTING AND OPERATING 241

Activating Adaptive Cruise Control (ACC)
You can only engage ACC if the vehicle speed is above
20 mph (32 km/h).
The system will cancel when the vehicle speed drops below
15 mph (24 km/h).
The minimum set speed for the ACC system is 20 mph
(32 km/h).
When the system is turned on and in the “ready” state, the
instrument cluster display will read “ACC Ready.”
When the system is off, the instrument cluster display will
read “Adaptive Cruise Control (ACC) Off.”
NOTE:You cannot engage ACC under the following con-
ditions:
• When you apply the brakes.
• When the parking brake is applied.
• When the automatic transmission is in PARK, REVERSE
or NEUTRAL.
• When the vehicle speed is outside of the speed range.
• When the brakes are overheated.
• When the ESC is in Full-Off mode.
To Activate/Deactivate
Push and release the Adaptive Cruise Control (ACC)
on/off button. The ACC menu in the instrument cluster
displays “ACC Ready.”
To turn the system off, push and release the Adaptive
Cruise Control (ACC) on/off button again. At this time, the
system will turn off and the instrument cluster displays
“Adaptive Cruise Control (ACC) Off.”
Adaptive Cruise Control Ready
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STARTING AND OPERATING 243

WARNING!
Leaving the Adaptive Cruise Control (ACC) system on
when not in use is dangerous. You could accidentally
set the system or cause it to go faster than you want.
You could lose control and have a collision. Always
leave the system off when you are not using it.
To Set A Desired ACC Speed
When the vehicle reaches the speed desired, push the SET
(+)button or the SET (-)button and release. The instrument
cluster display will show the set speed.
If the system is set when the vehicle speed is above 20 mph
(32 km/h), the set speed shall be the current speed of the
vehicle.
Remove your foot from the accelerator pedal. If you do not,
the vehicle may continue to accelerate beyond the set
speed. If this occurs:
• The message “DRIVER OVERRIDE” will show in the
instrument cluster display.
• The system will not be controlling the distance between
your vehicle and the vehicle ahead. The vehicle speed
will only be determined by the position of the accelera-
tor pedal.
To Cancel
The following conditions cancel the system:
• The brake pedal is applied.
• The CANC (cancel) button is pushed.
• The vehicle speed goes below 15 mph (24 km/h).
Adaptive Cruise Control Off
244 STARTING AND OPERATING