engine DODGE CHALLENGER SRT 2018 Workshop Manual

STARTING THE ENGINE
Before starting your vehicle, adjust your seat, adjust the
inside and outside mirrors, fasten your seat belt, and if
present, instruct all other occupants to buckle their seat
belts.
WARNING!
•When exiting the vehicle, always make sure the
keyless ignition node is in “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. Leaving children 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 (of a vehicle equipped with Keyless
Enter-N-Go) in the ACC or ON/RUN mode. A child
could operate power windows, other controls, or
move the vehicle.
(Continued)
WARNING! (Continued)
•Do not leave children or animals inside parked
vehicles in hot weather. Interior heat build-up may
cause serious injury or death.
Manual Transmission — If Equipped
Apply the parking brake, place the gear selector in NEU-
TRAL and press the clutch pedal before starting vehicle.
This vehicle is equipped with a clutch interlocking ignition
system. It will not start unless the clutch pedal is pressed to
the floor.
Automatic Transmission — If Equipped
The gear selector must be in the PARK position before you
can start the engine. Apply the brakes before shifting into
any driving gear.
CAUTION!
Damage to the transmission may occur if the following
precautions are not observed:
• Shift into or out of PARK or REVERSE only after the
vehicle has come to a complete stop.
(Continued)
208 STARTING AND OPERATING

CAUTION!(Continued)
•Do not shift between PARK, REVERSE, NEUTRAL,
or DRIVE when the engine is above idle speed.
• Before shifting into any gear, make sure your foot is
firmly pressing the brake pedal.
Tip Start Feature — Automatic Transmission
Place the ignition in the START mode and release it as the
starter engages. The starter motor will automatically dis-
engage itself once engine is running. If the engine fails to
start, the starter will disengage automatically in 10 sec-
onds. If this occurs:
1. Place the ignition in the OFF mode.
2. Wait 10 to 15 seconds.
3. Repeat the “Normal Starting” procedure.
Normal Starting
To Turn On The Engine Using The ENGINE
START/STOP Button — Manual Transmission Only
1. Press and hold the clutch pedal while pushing and holding the ENGINE START/STOP button. 2. Release the button when the engine starts. If the vehicle
fails to start within 15 seconds, release the button, wait
10 to 15 seconds, then repeat the “Normal Starting”
procedure.
3. If you wish to stop the cranking of the engine prior to the engine starting, release the button.
NOTE: Normal starting of either a cold or a warm engine
is obtained without pumping or pressing the accelerator
pedal.
To Turn On The Engine Using The ENGINE
START/STOP Button — Automatic Transmission
Only
1. The transmission must be in PARK.
2. Press and hold the brake pedal while pushing the ENGINE START/STOP button once.
3. The system takes over and attempts to start the vehicle. If the vehicle fails to start, the starter will disengage
automatically after 10 seconds.
4. If you wish to stop the cranking of the engine prior to the engine starting, push the button again.
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STARTING AND OPERATING 209

NOTE:Normal starting of either a cold or a warm engine
is obtained without pumping or pressing the accelerator
pedal.
To Turn Off The Engine Using ENGINE
START/STOP Button — Manual Transmission Only
1. With the vehicle stopped, place the gear selector in NEUTRAL, then push and release the ENGINE START/
STOP button.
2. The ignition will return to the OFF mode.
3. Place the gear selector in first gear or REVERSE and then apply the parking brake.
NOTE:
•
If the ignition switch is left in the ACC position, the
system will automatically time out after 30 minutes of
inactivity and the ignition will switch to the OFF position.
• If the ignition switch is left in the RUN position, the
system will automatically time out after 30 minutes of
inactivity if the vehicle speed is 0 mph (0 km/h) and the
engine is not running. •
If the vehicle speed is above 5 mph (8 km/h), the
ENGINE START/STOP button must be held for two
seconds or three short pushes in a row before the engine
will shut off. The ignition switch position will remain in
the ACC position until the vehicle is stopped, placed in
park and the button is pushed twice to the OFF position.
To Turn Off The Engine Using ENGINE
START/STOP Button — Automatic Transmission
Only
1. Place the gear selector in PARK, then push and release the ENGINE START/STOP button.
2. The ignition will return to the OFF mode.
3. If the gear selector is not in PARK, the ENGINE START/ STOP button must be held for two seconds or three short
pushes in a row with the vehicle speed above 5 mph
(8 km/h) before the engine will shut off. The ignition
will remain in the ACC mode until the gear selector is in
PARK and the button is pushed twice to the OFF mode.
If the gear selector is not in PARK and the ENGINE
START/STOP button is pushed once, the instrument
cluster will display a “Vehicle Not In Park” message and
the engine will remain running. Never leave a vehicle
out of the PARK position, or it could roll.
210 STARTING AND OPERATING

NOTE:If the ignition switch is left in the ACC or RUN
(engine not running) position and the transmission is in
PARK, the system will automatically time out after 30
minutes of inactivity and the ignition will switch to the
OFF position.
Cold Weather Operation (Below –22°F Or 30°C)
To ensure reliable starting at these temperatures, use of an
externally powered electric engine block heater (available
from your authorized dealer) is recommended.
If Engine Fails To Start
WARNING!
• Never pour fuel or other flammable liquid into the
throttle body air inlet opening in an attempt to start
the vehicle. This could result in flash fire causing
serious personal injury.
• Do not attempt to push or tow your vehicle to get it
started. Vehicles equipped with an automatic trans-
mission cannot be started this way. Unburned fuel
could enter the catalytic converter and once the
engine has started, ignite and damage the converter
and vehicle.
(Continued)
WARNING! (Continued)
•If the vehicle has a discharged battery, booster cables
may be used to obtain a start from a booster battery
or the battery in another vehicle. This type of start
can be dangerous if done improperly. Refer to “Jump
Starting Procedure” in “In Case Of Emergency” for
further information.
After Starting
The idle speed is controlled automatically, and it will
decrease as the engine warms up.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and permits
quicker starts in cold weather. Connect the cord to a
standard 110-115 Volt AC electrical outlet with a grounded,
three-wire extension cord.
The engine block heater must be plugged in at least one
hour to have an adequate warming effect on the engine.
The engine block heater cord is routed under the hood on
the driver side of the vehicle. It has a removable cap that is
located near the air box.
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STARTING AND OPERATING 211

WARNING!
Remember to disconnect the engine block heater cord
before driving. Damage to the 110-115 Volt electrical
cord could cause electrocution.
ENGINE BREAK-IN RECOMMENDATIONS
The following tips will be helpful in obtaining optimum
performance and maximum durability for your new SRT
vehicle.
Despite modern technology and World Class manufactur-
ing methods, the moving parts of the vehicle must still
wear in with each other. This wearing in occurs mainly
during the first 500 miles (805 km) and continues through
the first oil change interval.
It is recommended for the operator to observe the follow-
ing driving behaviors during the new vehicle break-in
period:
0 to 100 miles (0 to 161 km):
•Do not allow the engine to operate at idle for an
extended period of time.
• Depress the accelerator pedal slowly and not more than
halfway to avoid rapid acceleration. •
Avoid aggressive braking.
• Drive with the engine speed less than 3,500 RPM.
• Maintain vehicle speed below 55 mph (88 km/h) and
observe local speed limits.
100 to 300 miles (161 to 483 km):
• Depress the accelerator pedal slowly and not more than
halfway to avoid rapid acceleration in lower gears (1st to
3rd gears).
• Avoid aggressive braking.
• Drive with the engine speed less than 5,000 RPM.
• Maintain vehicle speed below 70 mph (112 km/h) and
observe local speed limits.
300 to 500 miles (483 to 805 km):
• Exercise the full engine rpm range, shifting manually at
higher rpms when possible.
• Do not perform sustained operation with the accelerator
pedal at wide open throttle.
• Maintain vehicle speed below 85 mph (136 km/h) and
observe local speed limits.
212 STARTING AND OPERATING

For the first 1500 miles (2414 km):
•Do not participate in track events, sport driving schools,
or similar activities during the first 1500 miles (2414 km).
NOTE: Check engine oil with every refueling and add if
necessary. Oil and fuel consumption may be higher
through the first oil change interval. Running the engine
with an oil level below the add mark can cause severe
engine damage.
PARKING BRAKE
Before leaving the vehicle, make sure that the parking
brake is fully applied and place the gear selector in the
PARK or REVERSE (manual transmission only) position.
When the parking brake is applied and the ignition switch
is in the ON/RUN position, the “Brake Warning Light” in
the instrument cluster will illuminate. NOTE:
•
When the parking brake is applied and the transmission
is placed in gear, the “Brake Warning Light” will flash. If
vehicle speed is detected, a chime will sound to alert the
driver. Fully release the parking brake before attempting
to move the vehicle.
• This light only shows that the parking brake is applied.
It does not show the degree of brake application.
When parking on a hill, it is important to turn the front
wheels toward the curb on a downhill grade and away
from the curb on an uphill grade. For vehicles equipped
with an automatic transmission, apply the parking brake
before placing the gear selector in PARK, otherwise the
load on the transmission locking mechanism may make it
difficult to move the gear selector out of PARK. The
parking brake should always be applied whenever the
driver is not in the vehicle.
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STARTING AND OPERATING 213

Recommended Shift Speeds
To utilize your manual transmission efficiently for fuel
economy, it should be upshifted as listed in recommended
shift speed chart.
MANUAL TRANSMISSION RECOMMENDED SHIFT SPEEDS — SRT
Engine 1-44-5 5-6
6.2L Supercharged mph2025 42
(km/h) (32)(40) (67)
6.4L mph 2037 48
(km/h) (32)(59) (77)
Earlier upshifts during cruise conditions (relatively steady
speeds) may result in increased fuel economy.
Higher upshift speeds may be used to obtain a desired
acceleration rate.
NOTE:
• Your vehicle is equipped with a transmission reverse
inhibitor system. Always depress the clutch pedal fully
to the floor before shifting into reverse. When vehicle
speed is greater than 3 mph (5 km/h), the reverse
inhibitor activates to help prevent shifts into REVERSE. When at a complete stop, you may notice lighter shift
efforts into REVERSE with the ignition switch in the ON
position (RUN position for Keyless Enter-N-Go), as
compared to the ignition LOCK position (OFF position
for Keyless Enter-N-Go). This is normal operation of the
transmission reverse inhibitor system.
• Due to the high performance nature of your drivetrain,
you may hear your transmission. This can be most
noticeable when the vehicle is idling in NEUTRAL with
the clutch engaged (clutch pedal released), but it may
also be heard when driving at low engine RPM. Also,
this may be more noticeable when the transmission is
218 STARTING AND OPERATING

warm. This is a normal condition and is not an indica-
tion of a problem with your clutch or transmission.
1–4 Skip Shift
In Auto Drive Mode, Default, or Street Drive Modes, there
are times when you must shift the transmission directly
from first gear to fourth gear instead of from first gear to
second gear. This is to help you get the best possible fuel
economy from your vehicle. This occurs when the engine
coolant (antifreeze) is higher than 106°F (41°C), vehicle
speed is greater than 19 mph (30 km/h) but less than
21 mph (34 km/h), and the transmission is in first gear, and
the accelerator is at ¼ throttle or less.
NOTE:The1-4Skip Shift feature is disabled when
selecting Track, Sport, or Custom Drive Modes. Refer to
“SRT Drive Modes” in the “Multimedia” section for further
descriptions of these modes.
After you shift the transmission to fourth gear, you can
press the clutch in and shift to another forward gear.
Downshifting
To maintain a safe speed and prolong brake life, downshift
to maintain a safe speed when descending a steep grade.
WARNING!
Skipping more than one gear while downshifting,
could cause you to lose control of your vehicle. You
could have a collision.
CAUTION!
• If you skip more than one gear while downshifting
or downshift at too high an engine speed, you could
damage the engine, transmission, or clutch.
• Do not downshift into first gear when the vehicle is
moving faster than 15 mph (24 km/h), as you could
damage the engine and/or clutch.
AUTOMATIC TRANSMISSION
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.
(Continued)
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STARTING AND OPERATING 219

WARNING!(Continued)
•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.
• 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
(Continued)
WARNING! (Continued)
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.
• 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.
220 STARTING AND OPERATING

CAUTION!
Damage to the transmission may occur if the following
precautions are not observed:
•Shift into or out of PARK or REVERSE only after the
vehicle has come to a complete stop.
• Do not shift between PARK, REVERSE, NEUTRAL,
or DRIVE when the engine is above idle speed.
• Before shifting into any gear, make sure your foot is
firmly pressing the brake pedal.
NOTE: You must press and hold the brake pedal while
shifting out of PARK.
Ignition Park Interlock
This vehicle is equipped with an Ignition Park Interlock
which requires the transmission to be in PARK before the
ignition can be turned to the OFF mode. This helps the
driver avoid inadvertently leaving the vehicle without
placing the transmission in PARK. This system also locks
the transmission in PARK whenever the ignition is in the
OFF mode. NOTE:
The transmission is NOT locked in PARK when the
ignition is in the ACC mode (even though the engine will
be off). Ensure that the transmission is in PARK, and the
ignition is OFF(not in ACC mode) before exiting the
vehicle.
Brake/Transmission Shift Interlock System
This vehicle is equipped with a Brake Transmission Shift
Interlock system (BTSI) that holds the transmission gear
selector in PARK unless the brakes are applied. To shift the
transmission out of PARK, the engine must be running and
the brake pedal must be pressed. The brake pedal must
also be pressed to shift from NEUTRAL into DRIVE or
REVERSE when the vehicle is stopped or moving at low
speeds.
Eight-Speed Automatic Transmission
The transmission gear range (PRNDM) is displayed both
on the gear selector and in the instrument cluster.
To select a gear range, press the lock button on the gear
selector and move the selector rearward or forward. To
shift the transmission out of PARK, the engine must be
running and the brake pedal must be pressed. You must
also press the brake pedal to shift from NEUTRAL into
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STARTING AND OPERATING 221