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TheAntilock Brake System (ABS) on page 4-4improves
vehicle stability during hard stops on a slippery roads, but
apply the brakes sooner than when on dry pavement.
Allow greater following distance on any slippery road
and watch for slippery spots. Icy patches can occur on
otherwise clear roads in shaded areas. The surface
of a curve or an overpass can remain icy when the
surrounding roads are clear. Avoid sudden steering
maneuvers and braking while on ice.
Turn off cruise control, if equipped, on slippery surfaces.
Blizzard Conditions
Being stuck in snow can be in a serious situation. Stay
with the vehicle unless there is help nearby. If possible,
use theRoadside Service on page 7-7. To get help and
keep everyone in the vehicle safe:
Turn on theHazard Warning Flashers on page 3-6.
Tie a red cloth to an outside mirror.
{CAUTION:
Snow can trap engine exhaust under the vehicle.
This may cause exhaust gases to get inside.
Engine exhaust contains carbon monoxide (CO)
which cannot be seen or smelled. It can cause
unconsciousness and even death.
If the vehicle is stuck in the snow:
Clear away snow from around the base of your
vehicle, especially any that is blocking the
exhaust pipe.
Check again from time to time to be sure snow
does not collect there.
Open a window about two inches (5 cm) on the
side of the vehicle that is away from the wind to
bring in fresh air.
Fully open the air outlets on or under the
instrument panel.
Adjust the Climate Control system to a setting
that circulates the air inside the vehicle and set
the fan speed to the highest setting. See
Climate Control System in the Index.
CAUTION: (Continued)
4-28
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Driving with a Trailer
{CAUTION:
When towing a trailer, exhaust gases may collect
at the rear of the vehicle and enter if the liftgate,
trunk/hatch, or rear-most window is open.
Engine exhaust contains carbon monoxide (CO)
which cannot be seen or smelled. It can cause
unconsciousness and even death.
To maximize safety when towing a trailer:
Have the exhaust system inspected for leaks
and make necessary repairs before starting
a trip.
Never drive with the liftgate, trunk/hatch, or
rear-most window open.
Fully open the air outlets on or under the
instrument panel.
Adjust the Climate Control system to a setting
that brings in only outside air and set the fan
speed to the highest setting. See Climate
Control System in the Index.
For more information about carbon monoxide,
seeEngine Exhaust on page 2-36.Towing a trailer requires a certain amount of experience.
Get to know the rig before setting out for the open
road. Get acquainted with the feel of handling and
braking with the added weight of the trailer. And always
keep in mind that the vehicle you are driving is now
longer and not as responsive as the vehicle is by itself.
Before starting, check all trailer hitch parts and
attachments, safety chains, electrical connectors,
lamps, tires and mirror adjustments. If the trailer has
electric brakes, start the vehicle and trailer moving and
then apply the trailer brake controller by hand to be
sure the brakes are working. This checks the electrical
connection at the same time.
During the trip, check occasionally to be sure that the
load is secure, and that the lamps and any trailer brakes
are still working.
While towing a trailer or when exposed to long periods
of sunshine, the oor of the truck bed may become
very warm. Avoid putting items in the truck bed
that might be affected by high ambient temperatures.
4-46
Page 380 of 442
Relays Usage
A/C CMPRSR
CLTCHAir Conditioning Compressor Clutch
ACCYAccessory Power (Rear Wipers,
Inside Rearview Mirror)
FAN S/P Series/Parallel Engine Cooling FanRelays Usage
FAN 1 Engine Cooling Fan Motors
FAN 2 Engine Cooling Fan Motors
FOG LAMP Front Fog Lamps
FRT WASH Front Washer Pump
5-100
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Mini Fuses Usage
A/C CLTCH Air Conditioning Compressor Clutch
ABS IGNABS Ignition, Variable Effort
Steering
ACCY WPRRear Wiper Motor & Switch, Inside
Rearview Mirror
AIRBAGSensing Diagnostic Module (SDM),
Occupant Sensor Display,
Instrument Cluster
AUX OUTLETCenter Console Accessory Power
Outlet
BCM 1 Body Control Module (BCM) Power
BCM 2LED Instrument Panel Dimming,
Overhead Lamps, Vanity Lamps
BCM 4Center High-Mounted
Stoplamp (CHMSL), Back-up Lamps
BCM 5Left Side Front Turn Lamps, Rear
Stoplamps, Turn Lamps
BCM 6Right Side Rear Stoplamps, Turn
Lamps, Key Capture Solenoid
BCM 7/CLOCK Switch Dimming, Analog Clock
CIGInstrument Panel Accessory Power
Outlet (Cigarette Lighter)
DISPLYInstrument Panel Cluster, Climate
Control Module, Diagnostic Link
Connector
ECM BATT Engine Control Module (ECM)Mini Fuses Usage
ECM 1 ECM
ECM/TCM IGNECM/Transmission Control Module
Ignition Power, Mass Air ow
Sensor (V6)
EMIS 1Pre O2 Sensors, Cam Phasor (V6),
canister Purge (V6), Intake Manifold
Tuning Valve (V6)
EMIS 2Cooling Fan Relays, Air
Conditioning Clutch Relay, Post O2
Sensors, Mass Air ow Sensor (V8),
Canister Purge (V8)
EVEN COILSEven Ignition Coils, Even Fuel
Injectors
FOG LAMP Front Fog Lamps
FRT WASH Front Washer Pump
FUEL PUMP Fuel Pump
HORN Horn Assembly
IGN SW Ignition Switch, Immobilizer Module
LT HI BEAM Left Side High-Beam Headlamp
LT LO BEAM Left Side Low-Beam Headlamp
MISC IGN Air Quality Sensor
ODD COILSOdd Ignition Coils, Odd Fuel
Injectors
RDO Radio
REAR WASH Rear Washer Pump
RT HI BEAM Right Side High-Beam Headlamp
5-102
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