brake CHRYSLER 300 SRT 2012 2.G Workshop Manual
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Page 378 of 557

Anti-Lock Brake Light
The “Anti-Lock Brake Light” monitors the anti-
lock brake system. The light will come on when
the ignition switch is turned to the ON position and may
stay on for as long as four seconds.
If the “Anti-Lock Brake Light” remains on or comes on
while driving, it indicates that the anti-lock portion of the
brake system is not functioning and that service is
required. However, the conventional brake system will
continue to operate normally if the “Brake Warning
Light” is not on.
If the “Anti-Lock Brake Light” is on, the brake system
should be serviced as soon as possible to restore the
benefits of anti-lock brakes. If the “Anti-Lock Brake
Light” does not come on when the ignition switch is
turned to the ON position, have the bulb repaired as soon
as possible. If both the “Brake Warning Light” and the “Anti-Lock
Brake Light” remain on, the ABS and EBD systems are
not functioning. Immediate repair to the ABS system is
required.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced electronic
brake control system that include Anti-Lock Brake Sys-
tem (ABS), Traction Control System (TCS), Brake Assist
System (BAS), and the Electronic Stability Control (ESC).
All four of these systems work together to enhance
vehicle stability and control in various driving condi-
tions.
Also, your vehicle is equipped with Hill Start Assist
(HSA), Ready Alert Braking, and Rain Brake Support.
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Anti-Lock Brake System (ABS)
This system aids the driver in maintaining vehicle control
under adverse braking conditions by controlling hydrau-
lic brake pressure. This prevents wheel lock-up to help
avoid skidding on slippery surfaces during braking.
Refer to “Anti-Lock Brake System” in “Starting and
Operating” for further information.
WARNING!
The ABS cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase the
traction afforded by prevailing road conditions. The
ABS cannot prevent collisions, including those result-
ing from excessive speed in turns, driving on very
slippery surfaces, or hydroplaning. The capabilities of
an ABS-equipped vehicle must never be exploited in a
reckless or dangerous manner that could jeopardize
the user’s safety or the safety of others.
Traction Control System (TCS)
This system monitors the amount of wheel spin of each
driven wheel. If wheel spin is detected, brake pressure is
applied to the slipping wheel(s) and engine power is
reduced to provide enhanced acceleration and stability.
Brake Assist System (BAS)
This system complements the ABS by optimizing the
vehicle braking capability during emergency brake ma-
neuvers. This system detects an emergency braking situ-
ation by sensing the rate and amount of brake application
and then applies optimum pressure to the brakes. This
can help reduce braking distances.
Applying the brakes very quickly results in the best BAS
assistance. To receive the benefits of this system, you
must apply continuous brake pedal pressure during the
stopping sequence. Do not reduce brake pedal pressure
unless braking is no longer desired. Once the brake pedal
is released, the BAS is deactivated.
5
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WARNING!
The BAS cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase the
traction afforded by prevailing road conditions. The
BAS cannot prevent collisions, including those result-
ing from excessive speed in turns, driving on very
slippery surfaces, or hydroplaning. The capabilities of
a BAS-equipped vehicle must never be exploited in a
reckless or dangerous manner that could jeopardize
the user’s safety or the safety of others.
Electronic Stability Control (ESC)
This system enhances directional control and stability of
the vehicle under various driving conditions. The ESC
corrects for oversteering and understeering the vehicle
by applying the brake of the appropriate wheel. Enginepower may also be reduced to assist in counteracting the
condition of oversteer or understeer and help the vehicle
maintain the desired path.
The ESC uses sensors in the vehicle to determine the path
that the driver intends to steer the vehicle and compares
it to the actual path of the vehicle. When the actual path
does not match the intended path, the ESC applies the
brake of the appropriate wheel to assist in counteracting
the condition of oversteer or understeer.
•Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
•Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.
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release the TRIP ODOMETER button located on the
instrument cluster to clear this message. The “ESC OFF”
message may appear in the Electronic Vehicle Informa-
tion Center (EVIC). Refer to “Electronic Vehicle Informa-
tion Center (EVIC)” in “Understanding Your Instrument
Panel” for further information. To turn ESC ON again,
momentarily press the “ESC Off” switch.
NOTE:TheESC OFF message will display and the
audible chime will sound when the shift lever is moved
into the PARK position from any position other than
PARK and then moved out of the PARK position. This
will occur when the message was previously cleared.
WARNING!
In the ESC “Full Off” mode, the engine torque
reduction and stability features are cancelled. There-
fore, the enhanced vehicle stability offered by ESC is
unavailable. NOTE:
When the ESC is switched OFF, a feature of the
system remains active. This feature controls wheel spin
across an axle quite similarly to a limited slip differential.
If one wheel on an axle is spinning faster than the other,
the system will apply the brake of the spinning wheel
and allow more engine torque to be applied to the wheel
that is not spinning. To improve the vehicle’s traction
when driving with tire chains, or when starting off in
deep snow, sand, or gravel, it may be desirable to switch
to the “Partial Off” mode by momentarily pressing the
“ESC Off” switch.
WARNING!
With the ESC switched OFF, the enhanced vehicle
stability offered by ESC is unavailable. In an emer-
gency evasive maneuver, the ESC system will not
engage to assist in maintaining stability. The “Full
Off” ESC mode is intended for off-highway or off-
road only.
5
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Hill Start Assist (HSA)
The HSA system is designed to assist the driver when
starting a vehicle from a stop on a hill. HSA will maintain
the level of brake pressure the driver applied for a short
period of time after the driver takes their foot off of the
brake pedal. If the driver does not apply the throttle
during this short period of time, the system will release
brake pressure and the vehicle will roll down the hill. The
system will release brake pressure in proportion to the
amount of throttle applied as the vehicle starts to move in
the intended direction of travel.
HSA Activation Criteria
The following criteria must be met in order for HSA to
activate:
•Vehicle must be stopped.
•Vehicle must be on a 6% (approximate) grade or
greater hill.
•Gear selection matches vehicle uphill direction (i.e.,
vehicle facing uphill is in forward gear; vehicle back-
ing uphill is in REVERSE gear).
HSA will work in REVERSE and all forward gears when
the activation criteria have been met. The system will not
activate if the vehicle is placed in NEUTRAL or PARK.
WARNING!
There may be situations on minor hills (i.e., less than
8%), with a loaded vehicle, or while pulling a trailer,
when the system will not activate and slight rolling
may occur. This could cause a collision with another
vehicle or object. Always remember the driver is
responsible for braking the vehicle.
Towing With HSA
HSA will provide assistance when starting on a grade
when pulling a trailer.
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WARNING!
•HSA is not a parking brake. Always apply the
parking brake fully when leaving your vehicle.
Also, be certain to leave the transmission in PARK.
•Failure to follow these warnings may cause the
vehicle to roll down the incline and could collide
with another vehicle, object or person, and cause
serious or fatal injury. Always remember to use the
parking brake while parking on a hill and that the
driver is responsible for braking the vehicle.
HSA Off
If you wish to turn off the HSA system, it can be done
using the Customer Programmable Features in the Elec-
tronic Vehicle Information Center (EVIC). Refer to “Elec-
tronic Vehicle Information Center (EVIC)” in “Under-
standing Your Instrument Panel” for further information.
Ready Alert Braking
Ready Alert Braking may reduce the time required to
reach full braking during emergency braking situations.
It anticipates when an emergency braking situation may
occur by monitoring how fast the throttle is released by
the driver. When the throttle is released very quickly,
Ready Alert Braking applies a small amount of brake
pressure. This brake pressure will not be noticed by the
driver. The brake system uses this brake pressure to allow
a fast brake response if the driver applies the brakes.
Rain Brake Support
Rain Brake Support may improve braking performance
in wet conditions. It will periodically apply a small
amount of brake pressure to remove any water buildup
on the front brake rotors. It only functions when the
windshield wipers are in the LO or HI mode, it does not
function in the intermittent mode. When Rain Brake
Support is active, there is no notification to the driver and
no driver interaction is required.
5
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Overloading
The load carrying components (axle, springs, tires,
wheels, etc.) of your vehicle will provide satisfactory
service as long as you do not exceed the GVWR and the
front and rear GAWR.
The best way to figure out the total weight of your
vehicle is to weigh it when it is fully loaded and ready for
operation. Weigh it on a commercial scale to ensure that
it is not over the GVWR.
Figure out the weight on the front and rear of the vehicle
separately. It is important that you distribute the load
evenly over the front and rear axles.
Overloading can cause potential safety hazards and
shorten useful service life. Heavier axles or suspension
components do not necessarily increase the vehicle’s
GVWR.
Loading
To load your vehicle properly, first figure out its empty
weight, axle-by-axle and side-by-side. Store heavier items
down low and be sure you distribute their weight as
evenly as possible. Stow all loose items securely before
driving. If weighing the loaded vehicle shows that you
have exceeded either GAWR, but the total load is within
the specified GVWR, you must redistribute the weight.
Improper weight distribution can have an adverse effect
on the way your vehicle steers and handles and the way
the brakes operate.
NOTE:
•Refer to the “Vehicle Certification Label” affixed to the
rear of the driver’s door for your vehicle’s GVWR and
GAWRs.
•Refer to the “Tire Placard” for your vehicle’s proper
tire pressure.
424 STARTING AND OPERATING
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WARNING! (Continued)
•TIREFIT Sealant solution contains latex. In case of
an allergic reaction or rash, consult a physician
immediately. Keep TIREFIT out of reach of chil-
dren. If swallowed, rinse mouth immediately with
plenty of water and drink plenty of water. Do not
induce vomiting! Consult a physician immediately.
Sealing A Tire With TIREFIT
(A) Whenever You Stop To Use TIREFIT:
1. Pull over to a safe location and turn on the vehicle’s
Hazard Warning flashers.
2. Verify that the valve stem (on the wheel with the
deflated tire) is in a position that is near to the ground.
This will allow the TIREFIT Hoses (6) and (7) to reach the
valve stem and keep the TIREFIT kit flat on the ground.
This will provide the best positioning of the kit wheninjecting the sealant into the deflated tire and running the
air pump. Move the vehicle as necessary to place the
valve stem in this position before proceeding.
3. Place the transmission in PARK (auto transmission) or
in Gear (manual transmission) and turn Off the ignition.
4. Set the parking brake.
(B) Setting Up To Use TIREFIT:
1. Turn the Mode Select Knob (5) to the Sealant Mode
position.
2. Uncoil the Sealant Hose (6) and then remove the cap
from the fitting at the end of the hose.
3. Place the TIREFIT kit flat on the ground next to the
deflated tire.
4. Remove the cap from the valve stem and then screw
the fitting at the end of the Sealant Hose (6) onto the
valve stem.
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5. Uncoil the Power Plug (8) and insert the plug into the
vehicle’s 12 Volt power outlet.
NOTE:Do not remove foreign objects (e.g., screws or
nails) from the tire.
(C) Injecting TIREFIT Sealant Into The Deflated
Tire:
•
Always start the engine before turning ON the TIRE-
FIT kit.
NOTE: Manual transmission vehicles must have the
parking brake engaged and the shift lever in NEUTRAL.
•After pressing the Power Button (4), the sealant (white
fluid) will flow from the Sealant Bottle (1) through the
Sealant Hose (6) and into the tire.
NOTE: Sealant may leak out through the puncture in
the tire. If the sealant (white fluid) does not flow
within 0 –
10 seconds through the Sealant Hose (6):
1. Press the Power Button (4) to turn Off the TIREFIT kit.
Disconnect the Sealant Hose (6) from the valve stem.
Make sure the valve stem is free of debris. Reconnect the
Sealant Hose (6) to the valve stem. Check that the Mode
Select Knob (5) is in the Sealant Mode position and not
Air Mode. Press the Power Button (4) to turn On the
TIREFIT kit.
2. Connect the Power Plug (8) to a different 12 Volt
power outlet in your vehicle or another vehicle, if avail-
able. Make sure the engine is running before turning ON
the TIREFIT kit.
3. The Sealant Bottle (1) may be empty due to previous
use. Call for assistance.
NOTE: If the Mode Select Knob (5) is on Air Mode and
the pump is operating, air will dispense from the Air
Pump Hose (7) only, not the Sealant Hose (6).
6
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1. Set the parking brake, shift the automatic transmission
into PARK and turn the ignition to LOCK.
2. Turn off the heater, radio, and all unnecessary electri-
cal accessories.
3. If using another vehicle to jump-start the battery, park
the vehicle within the jumper cables reach, set the
parking brake and make sure the ignition is OFF.
WARNING!
Do not allow vehicles to touch each other as this
could establish a ground connection and personal
injury could result.
Jump-Starting Procedure
WARNING!
Failure to follow this procedure could result in per-
sonal injury or property damage due to battery ex-
plosion.
CAUTION!
Failure to follow these procedures could result in
damage to the charging system of the booster vehicle
or the discharged vehicle.
442 WHAT TO DO IN EMERGENCIES