To minimize the possibility of catalytic converter dam-
age:
•Do not shut off the engine or interrupt the ignition,
when the transmission is in gear and the vehicle is in
motion.
• Do not try to start the engine by pushing or towing the
vehicle.
• Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough
idle or malfunctioning operating conditions.Cooling System
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the hood,
do not open the hood until the radiator has had time
to cool. Never try to open a cooling system pressure
cap when the radiator is hot.
Engine Coolant Checks
Check the engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where
applicable). If the engine coolant (antifreeze) 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 (if equipped) or radiator for any
accumulation of bugs, leaves, etc. If dirty, clean by gently
654 MAINTAINING YOUR VEHICLE
Bulb Number
Center High Mounted
Stop Lamp (CHMSL) 921
Rear Cargo Lamp 921
Cab Roof Marker Lamps 194NA
Base Rear Tail/Turn and
Stop Lamp 3157K
Premium Rear Tail/Turn
and Stop Lamp LED (Serviced at Autho-
rized Dealer)
Premium Backup Lamp T20
Rear Lamp Bar ID
Marker Lamp 194
Side Marker Lamps
(Dual Rear Wheels) 194
Backup Lamp 921
Rear License Plate Lamp 194BULB REPLACEMENT
NOTE:Lens fogging can occur under certain atmo-
spheric conditions. This will usually clear as atmospheric
conditions change to allow the condensation to change
back into a vapor. Turning the lamps on will usually
accelerate the clearing process.
Base Quad / Premium Bi-Halogen: Low Beam
Headlamp, High Beam Headlamp, Front Park And
Turn – If Equipped
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Remove the four plastic push-in fasteners that secure the upper radiator seal to the grille support and both
fender ledges.
4. Remove the two plastic push-in rivets that secure the upper radiator seal to the radiator.7
MAINTAINING YOUR VEHICLE 687
