The coolant concentration in severe climates must always be
between 40% and 60%.Coolant concentrations not within the
40%-60% range may cause engine damage.
Refer to the chart on the coolant container to ensure the coolant
concentration in your vehicle will provide adequate protection at the
temperatures in which you drive.
What you should know about fail-safe cooling
If the engine coolant supply is depleted, this feature allows the vehicle to
be driven temporarily before incremental component damage is incurred.
The ªfail-safeº distance depends on ambient temperatures, vehicle load
and terrain.
How fail-safe cooling works
If the engine begins to overheat:
²The engine coolant temperature
gauge will move to the red (hot)
area.
²The
and thesymbol
will illuminate.
²The ªService Engine Soonº
indicator light will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
When this occurs the vehicle will still operate. However:
²The engine power will be limited.
²The air conditioning system will be disabled.
Continued operation will increase the engine temperature:
²The engine will completely shut down.
²Steering and braking effort will increase.
Once the engine temperature cools, the engine can be re-started. Take
your vehicle to a service facility as soon as possible to minimize engine
damage.
When fail-safe mode is activated
You have limited engine power when in the fail-safe mode, so drive the
vehicle with caution. The vehicle will not be able to maintain high speed
Maintenance and Specifications
284
change oil soon warning,
message center .......................276
checking and adding ..............276
dipstick ....................................276
filter, specifications ........278, 311
recommendations ...................278
refill capacities ........................312
specifications ..................314, 316
Exhaust fumes ..........................196
F
Fail safe cooling ........................284
Floor mats .................................133
Fluid capacities .........................312
Foglamps .....................................82
Four-Wheel Drive vehicles
driving off road .......................213
preparing to drive your
vehicle .....................................203
Fuel ............................................285
calculating fuel
economy ..........................121, 289
cap ...........................................287
capacity ...................................312
choosing the right fuel ...........288
comparisons with EPA fuel
economy estimates .................292
detergent in fuel .....................289
filling your vehicle with
fuel ...........................285, 287, 289
filter, specifications ........289, 311
fuel pump shut-off switch .....232
improving fuel economy ........289
octane rating ...................288, 316
quality ......................................288
running out of fuel .................289
safety information relating to
automotive fuels .....................285
Fuses ..................................233±234G
Garage Door Opener (see
Homelink wireless control
system) ......................................114
Gas cap (see Fuel cap) ............287
Gas mileage
(see Fuel economy) .................289
Gauges .........................................14
GAWR (Gross Axle Weight
Rating)
calculating ...............................224
GVWR
(Gross Vehicle Weight Rating)
calculating ...............................224
H
Hazard flashers .........................232
Head restraints .........................153
Headlamps ...................................82
aiming ........................................85
autolamp system .......................82
bulb specifications ....................88
daytime running lights .............84
flash to pass ..............................85
high beam .................................84
replacing bulbs .........................90
turning on and off ....................82
HomeLink universal
transceiver
(see Garage door opener) .......118
Homelink wireless control
system ........................................114
I
Ignition ...............................193, 316
Index
326
