brake fluid RAM CHASSIS CAB 2009 Owners Manual

15. Shift Lever Indicator (Automatic Transmission
Only)
This display indicator shows the automatic transmission
shift lever selection.
NOTE:You must apply the brake before shifting from
PARK.
16. Odometer/Trip Odometer
The odometer shows the total distance the vehicle has
been driven. U.S. federal regulations require that upon
transfer of vehicle ownership, the seller certify to the
purchaser the correct mileage that the vehicle has been
driven. Therefore, if the odometer reading is changed
during repair or replacement, be sure to keep a record of
the reading before and after the service so that the correct
mileage can be determined.
The two trip odometers show individual trip mileage. To
switch from odometer to trip odometers, press and
release the Trip Odometer button. To reset a trip odometer, display the desired trip odom-
eter to be reset then push and hold the button until the
display resets (approximately two seconds).
Vehicle Warning Messages
When the appropriate conditions exist, messages such as
“door” (indicates that a door(s) may be ajar), “hood” (if
the hood is open or ajar, on vehicles with remote start),
“gASCAP” (indicates that your gas cap is possibly loose
or damaged), “Low Tire” (indicates low tire pressure),
\6CHANgE OIL” (indicates that the engine oil should be
changed), “LoWASH” (low washer fluid), and “noFUSE”
(indicates that the IOD fuse is removed from the Inte-
grated Power Module), will display in the odometer.
NOTE:
There is also an engine hour function. This
indicates the total number of hours the engine has been
running. To display the engine hours perform the follow-
ing: Place the ignition in RUN, but do not start the
engine. With the odometer value displayed, hold the trip
166 UNDERSTANDING YOUR INSTRUMENT PANEL

18. Malfunction Indicator Light (MIL)The Malfunction Indicator Light (MIL) is part of
an onboard diagnostic system which monitors
the emissions and engine control system. If the
vehicle is ready for emissions testing the light will come
on when the ignition is first turned on and remain on, as
a bulb check, until the engine is started. If the vehicle is
not ready for emissions testing the light will come on
when the ignition is first turned on and remain on for
15 seconds, then blink for five seconds, and remain on
until the vehicle is started. If the bulb does not come on
during starting, have the condition investigated
promptly.
If this light comes on and remains on while driving, it
suggests a potential engine control problem and the need
for system service. Although your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.
CAUTION!
Prolonged driving with the MIL on could cause
damage to the engine control system. It also could
affect fuel economy and drivability.
If the MIL is flashing, severe catalytic converter
damage and power loss will soon occur. Immediate
service is required.
19. Brake Warning Light This light monitors various brake functions,
including brake fluid level and parking brake
application. If the brake light turns on, it may
indicate that the parking brake is applied, that
the brake fluid level is low, or that there is a problem with
the anti-lock brake system reservoir.
168 UNDERSTANDING YOUR INSTRUMENT PANEL

If the light remains on when the parking brake has been
disengaged, and the fluid level is at the full mark on the
master cylinder reservoir, it indicates a possible brake
hydraulic system malfunction or a problem with the
Brake Booster has been detected by the Anti-Lock Brake
System (ABS) / Electronic Stability Program (ESP) sys-
tem. In this case, the light will remain on until the
condition has been corrected. If the problem is related to
the brake booster, the ABS pump will run when applying
the brake and a brake pedal pulsation may be felt during
each stop.
The dual brake system provides a reserve braking capac-
ity in the event of a failure to a portion of the hydraulic
system. A leak in either half of the dual brake system is
indicated by the Brake Warning Light, which will turn on
when the brake fluid level in the master cylinder has
dropped below a specified level.
The light will remain on until the cause is corrected.NOTE:
The light may flash momentarily during sharp
cornering maneuvers, which change fluid level condi-
tions. The vehicle should have service performed, and
the brake fluid level checked.
If brake failure is indicated, immediate repair is neces-
sary.
WARNING!
Driving a vehicle with the red brake light on is
dangerous. Part of the brake system may have failed.
It will take longer to stop the vehicle. You could have
an accident. Have the vehicle checked immediately.
Vehicles equipped with the Anti-Lock Brake System
(ABS), are also equipped with Electronic Brake Force
Distribution (EBD). In the event of an EBD failure, the
Brake Warning Light will turn on along with the ABS
Light. Immediate repair to the ABS system is required.
UNDERSTANDING YOUR INSTRUMENT PANEL 169
4

\4Electronically Shifted Transfer Case
Operating Information/Precautions (4
Position Switch) — If Equipped .......... 242
\4 Shifting Procedure — Electronically Shifted
Transfer Case ....................... 246
\2 Limited-Slip Differential – If Equipped ...... 249
\2 Driving On Slippery Surfaces ............. 250
\2 Driving Through Water ................. 250
\4 Flowing/Rising Water ................. 250
\4 Shallow Standing Water ............... 251
\2 Power Steering ....................... 252
\4 Power Steering Fluid Check ............. 253
\2 Parking Brake ........................ 254
\2 Brake System ........................ 255 \4
Four-Wheel Anti-Lock Brake System ....... 256
\2 Tire Safety Information ................. 258
\4 Tire Markings ....................... 258
\4 Tire Identification Number (TIN) ......... 261
\4 Tire Loading And Tire Pressure .......... 262
\2 Tires — General Information ............. 266
\4 Tire Pressure ....................... 266
\4 Tire Inflation Pressures ................ 267
\4 Radial Ply Tires ..................... 272
\4 Tire Spinning ....................... 273
\4 Tread Wear Indicators ................. 273
\4 Life Of Tire ........................ 274
\4 Replacement Tires .................... 274
218 STARTING AND OPERATING

WARNING!
•Driving through standing water limits your vehi-
cle’s traction capabilities. Do not exceed 5 mph
(8 km/h) when driving through standing water.
•Driving through standing water limits your vehi-
cle’s braking capabilities, which increases stop-
ping distances. Therefore, after driving through
standing water, drive slowly and lightly press on
the brake pedal several times to dry the brakes.
•Getting water inside your vehicle’s engine can
cause it to lock up and stall out, and leave you
stranded.
•Failure to follow these warnings may result in
injuries that are serious or fatal to you, your
passengers, and others around you.
POWER STEERING
The standard power steering system will give you good
vehicle response and increased ease of maneuverability
in tight spaces. The system will provide mechanical
steering capability if power assist is lost.
If for some reason the power assist is interrupted, it will
still be possible to steer your vehicle. Under these condi-
tions, you will observe a substantial increase in steering
effort, especially at very low vehicle speeds and during
parking maneuvers.
NOTE:Increased noise levels at the end of the steering
wheel travel are considered normal and do not indicate
that there is a problem with the power steering system.
Upon initial start-up in cold weather, the power steering
pump may make noise for a short amount of time. This is
due to the cold, thick fluid in the steering system. This
noise should be considered normal, and it does not in any
way damage the steering system.
252 STARTING AND OPERATING

WARNING!
You or others could be injured if you leave the
vehicle unattended with the transfer case in the
NEUTRAL position without first fully engaging the
parking brake. The transfer case NEUTRAL position
disengages both the front and rear driveshafts from
the powertrain and will allow the vehicle to move,
regardless of the transmission position. The parking
brake should always be applied when the driver is
not in the vehicle.
CAUTION!
•Do not use a bumper-mounted clamp-on tow bar
on your vehicle. The bumper face bar will be
damaged.(Continued)
CAUTION! (Continued)
•Do not disconnect the rear driveshaft because
fluid will leak from the transfer case and damage
the internal parts.
Recreational Towing Procedure — Electronic Shift
Transfer Case — If Equipped
Use the following procedure to prepare your vehicle for
recreational towing:
CAUTION!
It is necessary to follow these steps to be certain that
the transfer case is fully in NEUTRAL before recre-
ational towing, to prevent damage to internal parts.
1. Bring vehicle to a complete stop.
2. Shut OFF the engine.
STARTING AND OPERATING 307
5

MAINTAINING YOUR VEHICLE
CONTENTS
\2Engine Compartment— 5.7L .............. 335
\2 Onboard Diagnostic System (OBD II) ....... 336
\4 Loose Fuel Filler Cap Message ........... 336
\2 Replacement Parts ..................... 337
\2 Dealer Service ........................ 337
\2 Maintenance Procedures ................. 338
\4 Engine Oil ......................... 338
\4 Engine Air Cleaner Filter ............... 340
\4 Maintenance Free Battery .............. 341 \4
Air Conditioner Maintenance ............ 342
\4 Body Lubrication .................... 343
\4 Windshield Wiper Blades ............... 344
\4 Adding Washer Fluid ................. 344
\4 Exhaust System ..................... 345
\4 Cooling System ..................... 348
\4 Brake System ....................... 353
\4 Rear Axle And 4X4 Front Driving Axle Fluid
Level ............................. 355
7

ENGINE COMPARTMENT— 5.7L
1 — Air Cleaner Filter7 — Engine Oil Dipstick
2 — Automatic Transmission Dipstick 8 — Power Steering Fluid Reservoir
3 — Engine Oil Fill 9 — Washer Fluid Reservoir
4 — Brake Fluid Reservoir 10 — Engine Coolant Reservoir
5 — Battery 11 — Coolant Pressure Cap
6 — Integrated Power Module MAINTAINING YOUR VEHICLE 3357

If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.
•Do not overfill the coolant recovery bottle.
•Check engine coolant (antifreeze) freeze point in the
radiator and in the coolant recovery bottle. If engine
coolant (antifreeze) needs to be added, contents of
coolant recovery bottle must also be protected against
freezing.
•If frequent engine coolant (antifreeze) additions are
required, or if the level in the coolant recovery bottle
does not drop when the engine cools, the cooling
system should be pressure tested for leaks.
•Maintain engine coolant (antifreeze) concentration at
50% HOAT engine coolant (antifreeze) (minimum)
and distilled water for proper corrosion protection of
your engine, which contains aluminum components.
•Make sure that the radiator and coolant recovery
bottle overflow hoses are not kinked or obstructed.
•Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
•Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory cooling performance, poor gas
mileage, and increased emissions.
Brake System
Brake Master Cylinder – Brake Fluid Level Check
The fluid level of the master cylinder should be checked
when performing under the hood service, or immedi-
ately if the brake system warning lamp indicates system
failure.
MAINTAINING YOUR VEHICLE 353
7

The brake master cylinder has a translucent plastic
reservoir. On the outboard side of the reservoir, there is a
“MAX” mark and an “MIN” mark (4500/5500 vehicles
only). The fluid level must be kept within these two
marks. Do not add fluid above the full mark because
leakage may occur at the cap.
With disc brakes, the fluid level can be expected to fall as
the brake linings wear. However, an unexpected drop in
fluid level may be caused by a leak and a system check
should be conducted.
Refer to “Fluids, Lubricants, and Genuine Parts” in this
section for the correct fluid type.WARNING!
•Use of a brake fluid that may have a lower initial
boiling point, or unidentified as to specification,
may result in sudden brake failure during hard
prolonged braking. You could have an accident.
•Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts and the
brake fluid catching fire.
Use only brake fluid that has been in a tightly closed or
sealed container to avoid contamination from foreign
matter or moisture.
CAUTION!
Do not allow a petroleum-based fluid to contaminate
the brake fluid. Seal damage and loss of brake
performance may result.
354 MAINTAINING YOUR VEHICLE