Page 349 of 497
5-23
1. If there is a cover, move the seats forward and turn
the wing nut on the cover counterclockwise to
remove it. For Crew Cab models, pull up the second
row seat with the loop at the base of the seat cushion
to access the tools.
2. The wheel blocks and the wheel block retainer can be
removed by turning the wing nut counterclockwise.
3. To release the bottle jack from its holder, turn the
knob on the bottle jack counterclockwise to lower
the jack head.
4. There is also a wing nut used to retain the
storage bag and tools. To remove it, turn the
wing nut counterclockwise.
You'll use the jack handle and the wheel wrench to
remove the underbody
-mounted spare tire.
A. Hoist Assembly
B. Wheel Wrench
C. Extensions
D. Hoist Shaft
E. Valve Stem,
Pointed Down
F. Spare TireG. Tire Retainer
H. Hoist Cable
I. Hoist Lock
J. Hoist Shaft
Access Hole
K. Hoist End
Page 443 of 497
6-78
Instrument Panel Fuse Block
The fuse block access door
is on the driver's side edge
of the instrument panel.
Pull off the cover to access
the fuse block.
You can remove fuses with a fuse extractor which is
mounted to the fuse block access door. To remove fuses
if you don't have a fuse extractor, hold the end of the
fuse between your thumb and index finger and pull
straight out.
You may have spare fuses located behind the fuse block
access door. These can be used to replace a bad fuse.
However, make sure it is of the correct amperage.
Fuse Usage
HVAC 1 Climate Control System
IGN 3 Ignition, Power Seats
BRAKE Anti
-Lock Brake System
HTR A/C Climate Control System
IGN 0 PRND321 Display,
Odometer, PCM
Page 445 of 497
6-80
Center Instrument Panel Fuse Block
The center instrument panel utility block is located
underneath the instrument panel, to the left of the
steering column.Relay Name Usage
SEO Special Equipment Option
HTD ST Heated Seats
SPARE 4 Not Used
VANITY Headliner Wiring
TRAILER Trailer Brake Wiring
PWR ST Power Seats
SPARE 5 Not Used
CLUTCH Manual Transmission
Clutch Switch
UPF Upfitter
PARK LAMP Parking Lamps (Relay)
FRT PRK EXPT Not Used (Fuse)
SL RIDE Manual Selectable Ride Switch
SPARE 2 Not Used
RR PRK LP Not Used (Relay)
RR FOG LP Not Used (Relay)
SPARE 3 Not Used
INADV PWR Interior Lights Feed
CTSY LP Courtesy Lamps
CEL PHONE Cellular Telephone Wiring
Page 449 of 497

6-84
Fuse Usage
B/U LP Backup Lamps, Automatic
Transmission Shift Lock
Control System
ATC Automatic Transfer Case
RR DEFOG Rear Window Defogger,
Heated Mirrors (Relay)
RR PRK Right Rear Parking Lamps
ECM B PCM
F/PMP Fuel Pump (Relay)
O2 A Oxygen Sensors
FUEL HT Fuel Heater, Glow Plug and Intake
Heater Controls
O2 B Oxygen Sensors
LR PRK Left Rear Parking Lamps
RR DEFOG Rear Window Defogger,
Heated Mirrors
HDLP Headlamps (Relay)
TRL PRK Parking Lamps Trailer Wiring
RT HDLP Right Headlamps
DRL Daytime Running Lamps (Relay)
HTD MIR Heated MirrorsFuse Usage
LT HDLP Left Headlamps
A/C Air Conditioning
AUX PWR Cigarette Lighter, Auxiliary
Power Outlets
SEO 2 Special Equipment Option Power,
Power Seats, Aux Roof Mnt Lamp
SEO 1 Special Equipment Option Power,
Aux Roof Mnt Lamp, Cell
Phone, OnStar
DRL Daytime Running Lamps
A/C A/C (Relay)
FOG LP Fog Lamps
FOG LP Fog Lamps (Relay)
RADIO Audio System, Instrument Cluster,
Climate Control System
CIGAR Cigarette Lighter, Auxiliary
Power Outlets
RT TURN Right Turn Signals
BTSI Automatic Transmission Shift
Lock Control System
LT TURN Left Turn Signals
FR PRK Front Parking Lamps,
Sidemarker Lamps
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