brake DODGE CHALLENGER SRT 2019 Service Manual

NOTE:In the event of a mismatch between the gear
selector position and the actual transmission gear (for
example, driver selects PARK while driving), the position
indicator will blink continuously until the selector is re-
turned to the proper position, or the requested shift can be
completed.
The electronically-controlled transmission adapts its shift
schedule based on driver inputs, along with environmental
and road conditions. The transmission electronics are self-
calibrating; therefore, the first few shifts on a new vehicle may be somewhat abrupt. This is a normal condition, and
precision shifts will develop within a few hundred miles
(kilometers).
Only shift from DRIVE to PARK or REVERSE when the
accelerator pedal is released and the vehicle is stopped. Be
sure to keep your foot on the brake pedal when shifting
between these gears.
The transmission gear selector provides PARK, REVERSE,
NEUTRAL, DRIVE, and MANUAL (AutoStick) shift posi-
tions. Manual shifts can be made using the AutoStick shift
control. Toggling the gear selector forward (-) or rearward
(+) while in the MANUAL (AutoStick) position (beside the
DRIVE position) will manually select the transmission
gear, and will display the current gear in the instrument
cluster as M1, M2, M3, etc. Refer to
AutoStickin this
section for further information.
NOTE: If the gear selector cannot be moved to the PARK,
REVERSE, or NEUTRAL position (when pushed forward)
it is probably in the MANUAL (AutoStick, +/-) position
(beside the DRIVE position). In MANUAL (AutoStick)
mode, the transmission gear is displayed in the instrument
cluster (as M1, M2, M3, etc.). Move the gear selector to the
right (into the DRIVE [D] position) for access to PARK,
REVERSE, and NEUTRAL.
Automatic Transmission Gear Selector
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Gear Ranges
Do not depress the accelerator pedal when shifting from
PARK or NEUTRAL into another gear range.
NOTE:After selecting any gear range, wait a moment to
allow the selected gear to engage before accelerating. This
is especially important when the engine is cold.
PARK (P)
This range supplements the parking brake by locking the
transmission. The engine can be started in this range.
Never attempt to use PARK while the vehicle is in motion.
Apply the parking brake when exiting the vehicle in this
range.
When parking on a level surface, you may shift the
transmission into PARK first, and then apply the parking
brake.
When parking on a hill, apply the parking brake before
shifting the transmission to PARK. As an added precau-
tion, turn the front wheels toward the curb on a downhill
grade and away from the curb on an uphill grade.
When exiting the vehicle, always:
• Apply the parking brake. •
Shift the transmission into PARK.
• Turn the ignition OFF.
• Remove the key fob from the vehicle.
WARNING!
•Never use the PARK position as a substitute for the
parking brake. Always apply the parking brake fully
when exiting the vehicle to guard against vehicle
movement and possible injury or damage.
• Your vehicle could move and injure you and others if
it is not in PARK. Check by trying to move the
transmission gear selector out of PARK with the
brake pedal released. Make sure the transmission is
in PARK before exiting the vehicle.
• 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.
(Continued)
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STARTING AND OPERATING 231

WARNING!(Continued)
•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
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.
(Continued)
WARNING! (Continued)
•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
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.
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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.
DRIVE (D)
This range should be used for most city and highway
driving. It provides the smoothest upshifts and downshifts,
and the best fuel economy. The transmission automatically
upshifts through all forward gears. The DRIVE position
provides optimum driving characteristics under all normal
operating conditions.
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STARTING AND OPERATING 233

NOTE:Torque Reserve is implemented during Launch
Mode, so you may notice different engine/exhaust sounds
and increased NVH.
Preconditions:
• Launch Mode should not be used on public roads.
Always check track conditions and the surrounding
area.
• Launch mode is not available within the first 500 miles
of engine break-in.
• Launch Mode should only be used when the engine and
transmission are at operating temperature.
• Launch Mode is intended to be used on dry, paved road
surfaces only. Use on slippery or loose surfaces may
cause damage to vehicle components and is not recom-
mended.
Automatic Transmission — If Equipped
Launch Mode is only available when the following proce-
dure is followed:
1. Push the LAUNCH button on the center stack switch bank. NOTE:
Pushing the SRT button on the center stack or
pressing Race Options within Drive Modes, then selecting
the Launch Control tab, followed by the soft, Launch
Control button are two other options to access launch
control features. Please refer to “SRT Drive Modes” in
“Multimedia” for further information.
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. 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.
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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.
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.
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STARTING AND OPERATING 239

7. While holding the clutch depressed, rapidly apply andhold 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
the throttle to execute launch. Refer to “Manual Trans-
mission – If Equipped” in this section for further infor-
mation.
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.
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.
240 STARTING AND OPERATING

•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)
countermeasures designed into your vehicle. New com-
ponents may need to be installed to return the system to
the original NVH performance.
• For race track usage it is recommended that the axle
fluid be changed every 4 hours of on track time.
• 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.
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STARTING AND OPERATING 241

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 at75% 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.
8. Rotors that pulsate during track use should be replaced. Resurfacing of the rotors is not recommended, as it
removes mass from the rotor, reducing its thermal
capacity. Resurfacing also thins the rotor cheek, making
it less robust and increasing the likelihood of pulsation
in further track use.
242 STARTING AND OPERATING

•If the button is continually pushed, the set speed will
continue to decrease until the button is released, then the
new set speed will be established.
Metric Speed (km/h)
• Pushing the SET (-)button once will result in a 1 km/h
decrease in set speed. Each subsequent tap of the button
results in a decrease of 1 km/h.
• If the button is continually pushed, the set speed will
continue to decrease until the button is released, then the
new set speed will be established.
To Accelerate For Passing
Press the accelerator as you would normally. When the
pedal is released, the vehicle will return to the set speed.
Using Speed Control On Hills
The transmission may downshift on hills to maintain the
vehicle set speed.
NOTE: The Speed Control system maintains speed up and
down hills. A slight speed change on moderate hills is
normal.
On steep hills, a greater speed loss or gain may occur so it
may be preferable to drive without Speed Control.
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.
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