2008 DODGE MAGNUM coolant temperature

6. Charging System Light
This light shows the status of the electrical charg-
ing system. The light should turn on when the
ignition switch is first turned ON and remain on briefly
as a bulb check. If the light stays on or turns on while
driving, turn off some of the vehicle's non-essential
electrical devices (i.e. radio), or slightly increase engine
speed (if at idle). If the light remains on, it means that the
charging system is experiencing a problem. See your
local authorized dealer to obtain SERVICE IMMEDI-
ATELY.
7. Electronic Throttle Control (ETC) Light
This light will turn on briefly as a bulb check
when the ignition switch is turned ON. This
light will also turn on while the engine is
running if there is a problem with the Elec-
tronic Throttle Control system.If the light comes on while the engine is running, safely
bring the vehicle to a complete stop as soon as possible,
place the gear selector in park, and cycle the ignition key.
The light should turn off. If the light remains lit with the
engine running, your vehicle will usually be drivable.
However, see your dealer for service as soon as possible.
If the light is flashing when the engine is running,
immediate service is required. In this case, you may
experience reduced performance, an elevated/rough idle
or engine stall, and your vehicle may require towing.
Also, have the system checked by an authorized dealer if
the light does not come on during starting.
8. Temperature Gauge
The temperature gauge shows engine coolant tempera-
ture. Any reading within the normal range indicates that
the engine cooling system is operating satisfactorily.
UNDERSTANDING YOUR INSTRUMENT PANEL 175
4

The gauge pointer will likely indicate a higher tempera-
ture when driving in hot weather, up mountain grades,
or when towing a trailer. It should not be allowed to
exceed the upper limits of the normal operating range.
CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If temperature gauge reads (H),
pull over and stop the vehicle. Idle the vehicle with
the air conditioner turned off until the pointer drops
back into the normal range. If the pointer remains on
the ªH,º and you hear a chime, turn the engine off
immediately, and call for service.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call a service center if your
vehicle overheats. If you decide to look under the
hood yourself, see Section 7 of this manual. Follow
the warnings under the Cooling System Pressure Cap
paragraph.
9. Turn Signal Indicators
The arrow will flash with the exterior turn signal
when the turn signal lever is operated.
NOTE:
A continuous chime will sound if the vehicle is
driven more than 1 mile (1.6 km) with either turn signal on.
176 UNDERSTANDING YOUR INSTRUMENT PANEL

Coolant Checks
Check engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where
applicable). If coolant is dirty or rusty in appearance, the
system should be drained, flushed, and refilled with
fresh coolant. Check the front of the A/C condenser for
any accumulation of bugs, leaves, etc. If dirty, clean by
gently spraying water from a garden hose vertically
down the face of the condenser.
Check the coolant recovery bottle tubing for brittle rub-
ber, cracking, tears, cuts, and tightness of the connection
at the bottle and radiator. Inspect the entire system for
leaks.
With the engine at normal operating temperature (but
not running), check the cooling system pressure cap for
proper vacuum sealing by draining a small amount of
coolant from the radiator drain cock. If the cap is sealing
properly, the engine coolant (antifreeze) will begin todrain from the coolant recovery bottle. DO NOT RE-
MOVE THE COOLANT PRESSURE CAP WHEN THE
COOLING SYSTEM IS HOT.
Cooling System Ð Drain, Flush, and Refill
The system should be drained, flushed, and refilled at the
intervals shown in the ªMaintenance Scheduleº in Sec-
tion 8 of this manual.
If the solution is dirty or contains a considerable amount
of sediment, clean and flush with a reliable cooling
system cleaner. Follow with a thorough rinsing to remove
all deposits and chemicals. Properly dispose of old
antifreeze solution.
Selection of Coolant
Use only the manufacturer's recommended coolant. Re-
fer to ªFluids, Lubricants, and Genuine Partsº for the
correct coolant type.
406 MAINTAINING YOUR VEHICLE

CAUTION!
²Mixing of coolants other than specified HOAT
engine coolants, may result in engine damage and
may decrease corrosion protection. If a non-HOAT
coolant is introduced into the cooling system in an
emergency, it should be replaced with the speci-
fied coolant as soon as possible.
²Do not use plain water alone or alcohol-base
engine coolant (antifreeze) products. Do not use
additional rust inhibitors or antirust products, as
they may not be compatible with the radiator
engine coolant and may plug the radiator.
²This vehicle has not been designed for use with
Propylene Glycol based coolants. Use of Propy-
lene Glycol based coolants is not recommended.
Adding Coolant
Your vehicle has been built with an improved engine
coolant that allows extended maintenance intervals. This
coolant can be used up to 5 Years or 100,000 miles (160
000 km) before replacement. To prevent reducing this
extended maintenance period, it is important that you
use the same coolant throughout the life of your vehicle.
Please review these recommendations for using Hybrid
Organic Additive Technology (HOAT) coolant.
When adding coolant:
²The manufacturer recommends using Mopart
Antifreeze/Coolant 5 Year/100,000 Mile Formula
HOAT (Hybrid Organic Additive Technology).
²Mix a minimum solution of 50% HOAT engine coolant
and distilled water. Use higher concentrations (not to
exceed 70%) if temperatures below234ÉF (237ÉC) are
anticipated.
MAINTAINING YOUR VEHICLE 407
7

²Use only high purity water such as distilled or deion-
ized water when mixing the water/engine coolant
solution. The use of lower quality water will reduce
the amount of corrosion protection in the engine
cooling system.
Please note that it is the owner's responsibility to main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated.
NOTE:Mixing coolant types will decrease the life of the
engine coolant and will require more frequent coolant
changes.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of
coolant, and to insure that coolant will return to the
radiator from the coolant recovery bottle.The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
²The warning words ªDO NOT OPEN HOTº on
the cooling system pressure cap are a safety pre-
caution. Never add coolant when the engine is
overheated. Do not loosen or remove the cap to
cool an overheated engine. Heat causes pressure to
build up in the cooling system. To prevent scald-
ing or injury, do not remove the pressure cap while
the system is hot or under pressure.
²Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or en-
gine damage may result.
408 MAINTAINING YOUR VEHICLE

Disposal of Used Coolant
Used ethylene glycol based engine coolant is a regulated
substance requiring proper disposal. Check with your
local authorities to determine the disposal rules for your
community. To prevent ingestion by animals or children,
do not store ethylene glycol based engine coolant in open
containers or allow it to remain in puddles on the
ground. If ingested by a child, contact a physician
immediately. Clean up any ground spills immediately.
Coolant Level
The coolant bottle provides a quick visual method for
determining that the coolant level is adequate. With the
engine off and cold, the level of the coolant in the bottle
should be between the ranges indicated on the bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
coolant freeze point or replacing coolant. Advise yourservice attendant of this. As long as the engine operating
temperature is satisfactory, the coolant bottle need only
be checked once a month.
When additional coolant is needed to maintain the
proper level, it should be added to the coolant bottle. Do
not overfill.
Points To Remember
NOTE:When the vehicle is stopped after a few miles
(kilometers) of operation, you may observe vapor coming
from the front of the engine compartment. This is nor-
mally a result of moisture from rain, snow, or high
humidity accumulating on the radiator and being vapor-
ized when the thermostat opens, allowing hot coolant to
enter the radiator.
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.
MAINTAINING YOUR VEHICLE 409
7

Gasoline, Clean Air...................... 333
Gasoline (Fuel)......................... 332
Conserving.......................... 188
Gasoline, Reformulated................... 333
Gauges
Coolant Temperature.................... 175
Fuel................................ 174
Odometer........................... 179
Speedometer......................... 174
Tachometer.......................... 174
Gear Ranges........................275,281
General Information...............18,26,116,331
General Maintenance..................... 390
Glass Cleaning.......................... 419
Gross Axle Weight Rating...............340,343
Gross Vehicle Weight Rating.............339,342
GVWR............................... 339
Hands-Free Phone (UConnectŸ)........89,219,221Hard Drive (HDD)....................201,219
Hazard
Driving Through Flowing, Rising, or Shallow
Standing Water....................... 288
Hazard Warning Flasher................... 360
Head Restraints......................... 120
Headlights
Automatic........................... 125
Bulb Replacement...................... 430
Cleaning............................ 419
Delay.............................. 126
High Beam/Low Beam Select Switch........ 128
Lights On Reminder.................... 127
On With Wipers....................126,132
Passing............................. 128
Switch.............................. 124
Time Delay.......................... 126
Heated Mirrors.......................... 88
Heated Seats........................... 120
468 INDEX

Wheel, Tilt........................... 134
Steering Wheel Mounted Sound System
Controls.............................. 247
Storage............................154,428
Storage, Vehicle......................258,428
Storing Your Vehicle...................... 428
Stuck, Freeing.......................... 376
Sun Roof.............................. 147
Sunglasses Storage....................... 140
Sunroof Maintenance..................... 149
Supplemental Restraint System - Airbag........ 52
Sway Control, Trailer..................... 344
Synthetic Engine Oil...................... 394
System, Navigation...................... 219
System, Remote Starting.................... 26
Tachometer............................ 174
Telescoping Steering Column............... 134
Temperature Control, Automatic (ATC)........ 252Temperature Gauge, Engine Coolant.......175,361
Tether Anchor, Child Restraint............... 70
Theft Alarm (Security Alarm)................ 18
Theft System (Security Alarm)............... 18
Tie Down Hooks, Cargo................... 161
Tilt Steering Column..................... 134
Time Delay, Headlight.................... 126
Tip Start............................... 14
Tire and Loading Information Placard......... 307
Tire Identification Number (TIN)............. 306
Tire Markings.......................... 302
Tire Safety Information.................... 302
Tires ............................78,311,456
Aging (Life of Tires).................... 317
Air Pressure.......................... 311
Alignment........................... 319
Chains.............................. 320
Changing.........................362,366
Compact Spare........................ 315
478 INDEX