2003 CHEVROLET TAHOE door lock

Fuses Usage
UNLOCKPower Door Lock Relay
(Unlock Function)
RR FOG LP Rear Fog Lamp (Export Only)
BRAKE Anti-Lock Brake System
DRIVER UNLOCKPower Door Lock Relay
(Driver's Door Unlock
Function)
IGN 0 PCM, TCM
TBC IGN 0 Truck Body Controller
VEH CHMSLVehicle and Trailer High
Mounted Stoplamp
LT TRLR ST/TRN Left Turn Signal/Stop Trailer
LT TRNLeft Turn Signals and
Sidemarkers
VEH STOPVehicle Stoplamps, Brake
Module, Electronic Throttle
Control Module
RT TRLR ST/TRN Right Turn Signal/Stop TrailerFuses Usage
RT TRNRight Turn Signals and
Sidemarkers
BODY Harness Connector
DDM Driver Door Module
AUX PWR 2Rear Cargo Area Power
Outlets
LOCKS Power Door Lock System
ECCRear Electronic Climate
Control
TBC 2C Truck Body Controller
FLASH Flasher Module
CB LT DOORSLeft Power Window Circuit
Breaker
TBC 2B Truck Body Controller
TBC 2A Truck Body Controller
5-111

Center Instrument Panel Fuse Block
The center instrument panel utility block is located
underneath the instrument panel, to the left of the
steering column.
Device Usage
SEO Special Equipment Option
TRAILER Trailer Brake Wiring
UPFIT Up®tter (Not Used)
SL RIDERide Control Harness
Connection
HDLR 2 Headliner Wiring Connector
BODY Body Wiring Connector
DEFOG Rear Defogger Relay
HDLNR 1 Headliner Wiring Connector 1
SPARE RELAY Not Used
CB SEATDriver and Passenger Seat
Module Circuit Breaker
CB RT DOORRight Power Window Circuit
Breaker
SPARE Not Used
INFOInfotainment Harness
Connection
5-112

*1Ð Gasoline Engine and Fuel Injection Rail #2.
*2Ð Gasoline Engine and Fuel Injection Rail #1.
*3Ð Gasoline Engine; Oxygen Sensors.
*4Ð Gasoline Engine; Oxygen Sensors.
*5Ð PCM Ignition
Fuses Usage
GLOW PLUG Not Used
CUST FEED Gasoline Accessory Power
STUD #1Auxiliary Power (Single
Battery and Diesels
Only)/Dual Battery (TP2) Do
not install fuse.
MBECMid Bussed Electrical Center
Power Feed, Front Seats,
Right Doors
BLOWER Front Climate Control Fan
LBECLeft Bussed Electrical Center,
Door Modules, Door Locks,
Auxiliary Power OutletÐRear
Cargo Area and Instrument
Panel
Fuses Usage
STUD 2Accessory Power/Trailer
Wiring Brake Feed
ABS Anti-Lock Brakes
VSES/ECAS Vehicle Stability
IGN A Ignition Power
IGN B Ignition Power
LBEC 1Left Bussed Electrical Center,
Left Doors, Truck Body
Controller, Flasher Module
TRL PARK Parking Lamps Trailer Wiring
RR PARKRight Rear Parking and
Sidemarker Lamps
LR PARKLeft Rear Parking and
Sidemarker Lamps
PARK LP Parking Lamps Relay
STARTER Starter Relay
INTPARK Interior Lamps
STOP LP Stoplamps
TBC BATTTruck Body Controller
Battery Feed
5-115

At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
speci®ed in Part D.
Body Lubrication Service
Lubricate all hood latch assembly, secondary latch,
pivots, spring anchor, release pawl, rear compartment
hinges, outer liftgate handle pivot points, rear door detent
link, roller mechanism, liftgate handle pivot points, latch
bolt, fuel door hinge, cargo door hinge, locks and folding
seat hardware. Part D tells you what to use. More
frequent lubrication may be required when exposed to a
corrosive environment.
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. See
Parking Brake on page 2-38if
necessary.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The starter
should work only in PARK (P) or NEUTRAL (N).
If the starter works in any other position, your
vehicle needs service.
6-13

Coolant.........................................................3-45
Engine Temperature Gage............................3-45
Heater, Engine............................................2-24
Surge Tank Pressure Cap.............................5-32
Cooling System..............................................5-36
Cruise Control Light........................................3-51
Cruise Control................................................3-10
Cupholder(s)..................................................2-61
Current and Past Model Order Forms................7-12
Customer Assistance Information........................ 7-8
Courtesy Transportation.................................. 7-8
Customer Assistance for Text Telephone (TTY)
Users....................................................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-6
Reporting Safety Defects to General Motors....7-10
Reporting Safety Defects to the Canadian
Government............................................7-10
Reporting Safety Defects to the United States
Government............................................7-10
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-11D
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Defogging and Defrosting.........................3-23, 3-29
Delayed Locking.............................................2-10
Dinghy Towing................................................4-60
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-61
Dome Lamps.................................................3-18
Door.............................................................2-10
Delayed Locking..........................................2-10
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-13
DRIVER DOOR AJAR.....................................3-66
Driver Information Center (DIC).........................3-53
DIC Operation and Displays..........................3-54
DIC Warnings and Messages........................3-64
Driver............................................................1-30
Position, Safety Belt.....................................1-30
Driving Across an Incline..................................4-36
Driving Downhill..............................................4-34
5

K
Key Lock Cylinders Service..............................6-13
KEYFOB X BATTERY LOW.............................3-68
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Lamps On Reminder.......................................3-15
Lamps...........................................................3-14
Exterior......................................................3-14
Interior.......................................................3-17
Lap Belt........................................................1-39
Lap-Shoulder Belt...........................................1-30
LATCH System...............................................1-62
Child Restraints...........................................1-62
Securing a Child Restraint Designed for the
LATCH System........................................1-64
Leaving Your Vehicle With the Engine Running . . . 2-40
LEFT REAR DOOR AJAR................................3-67
Level Control..................................................4-64
Liftgate Glass and Liftgate................................2-14
Liftgate..........................................................2-14
Lighted Visor Vanity Mirror...............................2-18
Light.............................................................3-39
Air Bag Readiness.......................................3-39
Anti-Lock Brake System Warning...................3-44
Battery Warning..........................................3-41Light (cont.)
Brake System Warning.................................3-42
Cruise Control.............................................3-51
Four-Wheel-Drive.........................................3-51
Low Fuel Warning.......................................3-53
Malfunction Indicator....................................3-47
Passenger Air Bag Status Indicator................3-39
Safety Belt Reminder...................................3-38
Tow/Haul Mode...........................................3-52
Traction Off................................................3-44
Listening to a DVD..............................3-100, 3-114
Loading Your Vehicle for Off-Road Driving..........4-26
Loading Your Vehicle.......................................4-62
Locking Rear Axle...........................................4-12
Lockout Protection..........................................2-13
Lock-Out Switch.............................................2-18
Locks............................................................2-10
Delayed Locking..........................................2-10
Door........................................................... 2-8
Lockout Protection.......................................2-13
Power Door.................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-13
Loss of Control...............................................4-21
LOW COOLANT LEVEL..................................3-67
Low Fuel Warning Light...................................3-53
Luggage Carrier..............................................2-62
Lumbar........................................................... 1-5
Power Controls............................................. 1-5
10

Park(P).........................................................2-39
Shifting Into................................................2-39
Part A - Scheduled Maintenance Services............ 6-4
Part B - Owner Checks and Services................6-11
Part C - Periodic MaintenanceInspections..........6-16
Part D - Recommended Fluids and Lubricants....6-18
Part E - Maintenance Record...........................6-20
Passenger Air Bag Indicator.....................2-48, 2-51
Passenger Air Bag Status Indicator...................3-39
PASSENGER DOOR AJAR..............................3-67
Passenger Sensing System..............................1-83
Passing.................................................4-20, 4-74
Passlock
ž......................................................2-20 .
Personalization Button.....................................3-58
Plan Ahead When Possible................................ 7-8
Playing a Cassette Tape..................................3-96
Playing a Compact Disc.................3-85, 3-98, 3-109
Playing a Speci®c Loaded Compact Disc..........3-110
Playing the Radio.................3-73, 3-77, 3-88, 3-102
Power Steering...............................................4-15
Power Winches..............................................4-81
Power...........................................................3-19
Accessory Outlets........................................3-19
Door Locks.................................................. 2-9
Electrical System.......................................5-108Power (cont.)
Lumbar Controls........................................... 1-5
Seat............................................................ 1-4
Steering Fluid.............................................5-43
Windows....................................................2-16
Programmable Automatic Door Locks.................2-10
Programming the HomeLink Transmitter.............2-58
Q
QUADRASTEERŸ..........................................4-17
Questions and Answers About Safety Belts.........1-28
R
Radio Data System (RDS)..............3-76, 3-87, 3-101
Radio Messages.............................3-75, 3-82, 3-93
Radios..........................................................3-72
AM-FM Radio.............................................3-73
Care of Your Cassette Tape Player...............3-127
Care of Your CD and DVD Player................3-129
Care of Your CDs and DVDs.......................3-128
Radio with Cassette and CD.........................3-87
Radio with CD............................................3-76
13

Radios (cont.)
Radio with Six-Disc CD..............................3-101
Rear Seat Audio........................................3-124
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-73
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-72
Theft-Deterrent..........................................3-125
Understanding Reception............................3-127
RDS Messages.............................3-81, 3-92, 3-105
REAR ACCESS OPEN....................................3-67
Rear Air Conditioning and Heating System and
Electronic Climate Controls...........................3-34
Rear Air Conditioning and Heating System.........3-32
Rear Air Conditioning System...........................3-31
Rear Axle......................................................5-56
Locking......................................................4-12
Rear Door Security Locks................................2-13
Rear Safety Belt Comfort Guides......................1-44
Rear Seat Audio Controls...............................3-124
Rear Seat Audio (RSA)..................................3-124
Rear Seat Entertainment System.....................3-114
Rear Seat Operation......................................... 1-9
Rear Seat Outside Passenger Positions.............1-40
Rear Seat Passengers, Safety Belts..................1-40
Rear Storage Area..........................................2-63
Rear Window Defogger............................3-23, 3-30Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-49
Rearview Mirror, Automatic Dimming with
OnStar
ž, Compass and Temperature Display . . . 2-45
Rearview Mirrors.............................................2-45
Reclining Seatbacks.......................................... 1-6
Reclining the Seatbacks...................................1-21
Recreational Vehicle Towing.............................4-59
REDUCED ENGINE POWER...........................3-68
Remote Alarm.................................................. 2-6
Remote Control.............................................3-117
Remote Keyless Entry System, Operation............ 2-5
Remote Keyless Entry System............................ 2-4
Removing the 50/50 Split Bench Seat................1-14
Removing the Bench Seat................................1-19
Removing the Flat Tire and Installing
the Spare Tire.............................................5-82
Removing the Spare Tire and Tools...................5-78
REPLACE LIFTGATE FUSE.............................3-68
Replacement Bulbs.........................................5-66
Replacing Brake System Parts..........................5-48
Replacing Restraint System Parts After a Crash . . 1-89
Replacing the 50/50 Split Bench Seat................1-15
Replacing the Bench Seat................................1-20
Reporting Safety Defects.................................7-10
Canadian Government..................................7-10
General Motors...........................................7-10
United States Government............................7-10
14