729
Maintenance
ENGINE COOLANT
The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the fac-
tory.
Check the antifreeze protection and
coolant concentration level at least once a
year, at the beginning of the winter season,
and before traveling to a colder climate. Checking the coolant level
WARNING
Removing radiatorcap
Never attempt to remove the radi- ator cap while the engine is oper-
ating or hot. Doing so might leadto cooling system and engine
damage and could result in seri-
ous personal injury from escap-ing hot coolant or steam.
Turn the engine off and wait until it cools down. Use extreme care
when removing the radiator cap.
Wrap a thick towel around it, and
turn it counterclockwise slowly to
the first stop. Step back while the
pressure is released from the cool-
ing system. When you are sure allthe pressure has been released,
press down on the cap, using a
thick towel, and continue turning
counterclockwise to remove it.
(Continued)
(Continued)
Even if the engine is not operat-ing, do not remove the radiator cap or the drain plug while the
engine and radiator are hot. Hot
coolant and steam may still blow
out under pressure, causing seri-
ous injury.
CAUTION
When the engine overheats from
low engine coolant, suddenlyadding engine coolant may causecracks in the engine. To preventdamage, add engine coolant
slowly in small quantities.
Do not drive with no engine coolant. It may cause water pumpfailure and engine seizure, etc.
JD PE eng 7.QXP 03.01.2017 17:17 Page 29
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Index
Tailgate ..........................................................................4-22
Closing the tailgate ....................................................4-22
Emergency tailgate safety release ..............................4-23
Opening the tailgate ....................................................4-22
Theft-alarm system ........................................................4-14 Armed stage ................................................................4-14
Disarmed stage ............................................................4-16
Theft-alarm stage ........................................................4-15
Tire Pressure Monitoring System (TPMS) ....................6-30 Changing a tire with TPMS ........................................6-33
Tire specification and pressure label ............................8-14
Tires and wheels ....................................................7-45, 8-8 Checking tire inflation pressure ..................................7-47
Low aspect ratio tire ..................................................7-55
Recommended cold tire inflation pressures................7-45
Tire care ......................................................................7-45
Tire maintenance ........................................................7-51
Tire replacement ........................................................7-49
Tire rotation ................................................................7-48
Tire sidewall labeling..................................................7-51
Tire traction ................................................................7-51
Wheel alignment and tire balance ..............................7-49
Wheel replacement ....................................................7-51 Towing ..........................................................................6-36
Emergency towing ......................................................6-37
Removable towing hook ............................................6-37
Towing service ............................................................6-36
Trailer Towing ..............................................................5-90 Driving with a trailer ..................................................5-92
Hitches ........................................................................5-91
If you do decide to pull a trailer ................................5-97
Maintenance when trailer towing ..............................5-96
Safety chains ..............................................................5-92
Trailer brakes ..............................................................5-92
Vehicle break-in process ..................................................1-5
Vehicle certification label ..............................................8-13
Vehicle identification number (VIN) ............................8-13
Vehicle weight ............................................................5-100 Base curb weight ......................................................5-100
Cargo weight ............................................................5-100
GAW (Gross axle weight) ........................................5-100
GAWR (Gross axle weight rating) ..........................5-100
GVW (Gross vehicle weight) ..................................5-100
GVWR (Gross vehicle weight rating) ......................5-100
Overloading ..............................................................5-100
Vehicle curb weight ..................................................5-100
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