2003 GMC YUKON DENALI battery

5. Check that the jumper cables don’t have loose or
missing insulation. If they do, you could get a
shock. The vehicles could be damaged too.
Before you connect the cables, here are some
basic things you should know. Positive
(+) will go to
positive (+) or to a remote positive terminal (+) if
the vehicle has one. Negative (-) will go to a heavy,
unpainted metal engine part or
to a remote
negative
(-) terminal, if the vehicle has one.
Don’t connect positive
(+) to negative (-) or you’ll
get a short that would damage the battery and
maybe other parts
too.
Fans or other moving engine parts can injure
you badly. Keep your hands away from moving
parts once the engine is running.
6. Connect the red
positive
(+) cable to the
positive
(+) terminal of the
dead battery. Use a
remote positive
(+)
terminal if the vehicle
has one.
7. Don’t let the other end
touch metal. Connect it
to the positive
(+)
terminal of the good
battery. Use a remote positive
(+) terminal
if the vehicle has one
5-43

8. Now connect the black
negative
(-) cable to the
negative
(-) terminal
of the good battery. Use
a remote negative
(-)
terminal if the vehicle has
one. Your vehicle’s
remote negative
(-)
terminal is marked GND.
Don’t let the other end touch anything until the next
step. The other end of the negative
(-) cable
doesn’t go to the dead battery.
It goes to a heavy,
unpainted metal engine part or
to a remote
negative
(-) terminal on the vehicle with the
dead battery.
9. Connect the other end of
the negative (-) cable at
least
18 inches (45 cm)
away from the dead
battery, but not near
engine parts that move.
The electrical connection is just as good there, and
the chance of sparks getting back
to the battery
is much less.
10. Now start the vehicle with the good battery and run
the engine for awhile.
11. Try to start the vehicle that had the dead battery. If
it won’t start after a few tries, it probably needs
service.
Notice: Damage to your vehicle may result from
electrical shorting if jumper cables are removed
incorrectly.
To prevent electrical shorting, take care
that the cables don’t touch each other or any
other metal. The repairs wouldn’t be covered by
your warranty.
5-44

A a
Jumper Cable Removal
A. Heavy, Unpainted Metal Engine Part or Remote
B. Good Battery or Remote Positive
(+) and
C. Dead Battery or Remote Positive (+) Terminal.
Negative
(-) Terminal.
Negative
(-) Terminals.
To disconnect the jumper cables from both vehicles do
the following:
1. Disconnect the black negative (-) cable from the
vehicle that had the dead battery.
2. Disconnect the black negative (-) cable from the
3. Disconnect the red positive (+) cable from the
4. Disconnect the red positive (+) cable from the other
5. Return the positive (+) remote terminal cover to its
vehicle
with the good battery.
vehicle with the good battery.
vehicle. original position.
5-45

Underhood Fuse Block The underhood fuse block in the engine compartment
on the driver’s side
of the vehicle near the battery.
Lift the cover for access to the fuse/relay block.
To remove fuses, hold the end of the fuse between your
thumb and index finger and puli straight out.
See Engine Compartment Overview on page
5-12 for
more information on
its location.
5-91

*I - Gasoline Engine and Fuel Injection Rail #2.
*2 - Gasoline Engine and Fuel Injection Rail #l.
*3 - Gasoline Engine; Oxygen Sensors.
*4 - Gasoline Engine; Oxygen Sensors.
*5 - PCM Ignition
I Fuses I Usage I
I STUD #1 I
Battery-and Diesels
Only)/Dual Battery (TP2) Do
not -install fuse.
Mid Bussed Electrical Center
MBEC Power
Feed, Front Seats,
LBEC Door Modules, Door Locks,
Auxiliary Power Outlet-Rear
Cargo Area and Instrument
Panel
STUD 2 Accessory
Powerflrailer
Wirinq Brake Feed LBEC
1
~~
I RR PARK I
Right
Rear Parking and
Sidemarker LamDs
I
5-93

GM Mobility Program for Persons
with Disabilities
This program, avaiiabie io
qualified applicants, can
reimburse you up
to
$1,000 toward aftermarket
driver or passenger
adaptive equipment you
may require for your
vehicle (hand controls,
wheelchair/scooter lifts, etc.).
I I
This program can also provide you with free resource
information, such as area driver assessment centers and
mobility equipment installers. The program is available
for a limited period of time from the date of vehicle
purchase/lease. See your dealer for more details or call
the GM Mobility Assistance Center at 1-800-323-9935.
Text telephone (TTY) users, call 1-800-833-9935.
GM of Canada also has a Mobility Program. Call
1-800-GM-DRIVE (463-7483) for details.
All TTY users
call 1-800-263-3830.
Roadside Assistance Program
GMC’s Roadside Assistance Provides stranded owners
with over-the-phone roadside repairs, location of the
nearest
GhlC dealer or the following special services:
Flat Tire Change: Installation of spare tire will be
covered at no charge (customer is responsible for repair
or replacement of tire).
Fuel Delivery: Delivery of enough fuel for the customer
to get to the nearest service station (up to $5.00)
will be covered.
Jump Start: No-start situations which require a battery
jump start will be covered at no charge.
Lock Out: Replacement keys or locksmith service will be
covered at no charge
if you are unable to gain entry
into your vehicle. Delivery of the replacement key will be
covered within
10 miles (16 km).
Emergency Towing Service: Towing
to the nearest GMC
dealer for warranty related disablements will be
covered.
Trip Routing: Custom-made, computerized highlighted
maps using the most direct or scenic route are provided
free of charge. Maps include points of interest and a
list of GMC dealers along the route. Also included is a
list of hotels along the route that are discounted
7-5

Automatic Headlamp System ............................ 3-1 4
Automatic Level Control
................................... 4-46
Automatic Transmission Fluid
.......................................................... 5-20
Operation
................................................... 2-22
Automatic Transmission Check
.......................... 6-1 1
Automatic Transmission Shift Lock Control
System Check
............................................. 6-12
AutorideTM
................................................. 4-46
B
Backing Up .................................................... 4-54
Battery
.......................................................... 5-39
Battery Replacement
......................................... 2-6
Battery Run-Down Protection
............................ 3-1 7
Before You Drive
............................................ 3-72
Bench Seat
.................................................... 1-17
Bench Seat Split (50/50)
.................................. 1-1 1
Bench Seat, Split (60/40)
................................... 1-9
Body Lubrication Service
.................................. 6-12
Brake
Parking
...................................................... 2-25
System Inspection
....................................... 6-1 4
BATTERY NOT
CHARGING
............................. 3-54
Before Leaving on a Long Trip
......................... 4-34
System Warning Light
.................................. 3-34
Brake
Brake
Brake
2 Adjustment
............................................ 5-39
Fluid
.................................................... 5-36
Pedal. Throttle
....................................... 2-20 Brake Pedal Travel
......................................... 5-39
Brake Wear
................................................... 5-38
Brakes
.......................................................... 5-36
Braking
........................................................... 4-6
Braking in Emergencies
..................................... 4-8
Break-in, New Vehicle
..................................... 2-18
Bucket Seats, Rear
......................................... 1-22
Bulb Replacement
........................................... 5-49
Center High-Mounted Stoplamp (CHMSL)
........ 5-52
Front Turn Signal, Sidemarker and Daytime
Halogen Bulbs
............................................ 5-49
Headlamps
................................................. 5-49
Replacement Bulbs
...................... ........ 5-53
Taillamps
........................................ .... 5-52
Buying New Tires
....................................... 5-58
Running Lamps
........................................ 5-50
C
California Fuel ................................. .......... 5-6
Canada
........................................................... 7-4
Canadian Owners
................................................ ii
Canadian Roadside Assistance ........................... 7-7
Capacities and Specifications ............................ 5-96
Carbon Monoxide
................... 4-37, 4-47, 2.13, 2-29
Care
of
Safety Belts ............................. .... 5-80
Care
of Your
Cassette Tape Player
............................... 3-87
CD and DVD Player .................................... 3-89

Driving (cont.)
Freeway
....................... ............ 4-33
Hill and Mountain Roads
..., ................... 4-35
In Rain and on Wet Roads
....................... 4-29
winter ........................................................ 4-37
Driving On Grades .......................................... 4-54
Driving on Snow or Ice
.................................... 4-38
Driving Through Deep Standing Water
............... 4-31
Driving Through Flowing Water
......................... 4-31
DVD Driving with a Trailer
....................................... 4-53
Care
of Your ............................................... 3-88
Care
of Your DVD Player ............................. 3-89
Cleaning the Video Screen
........................... 3-89
Distortion .................................................... 3-86
Rear Seat Entertainment System
................... 3-72
DVD Player
.................................................... 3-72 Engine
Air Cleaner/Filter
......................................... 5-17
Battery
....................................................... 5-39
Check and Service Engine Soon Light
............ 3-38
Coolant ...................................................... 5-22
Coolant Heater
............................................ 2-21
Coolant Temperature Gage
........................... 3-36
Cooling System Inspection
............................ 6-14
Engine Compartment Overview
...................... 5-12
Exhaust
..................................................... 2-29
Fan Noise
.................................................. 5-33
Oil
............................................................. 5-13
Overheating
................................................ 5-25
Starting
...................................................... 2-19
Engine Air Cleaner Filter Restriction
Indicator Check
........................................... 6-11
ENGINE COOLANT HOT
................................. 3-53
Engine Coolant Level Check
............................. 6-10
Engine Oil Additives ........................................ 5-16
Engine Oil Level Check
................................... 6-10
Entering or Exiting the Third Row Seats
.............. 1-7
Engine
Oil and Chassis Lubrication Scheduled
Maintenance
................................................. 6-5
ENGINE OVERHEATED
.................................. 3-53
Entertainment System Cleaning the Video Screen
........................... 3-89
DVD Distortion
............................................ 3-86
Entry Lighting
................................................. 3-16
Erasing HomeLink@ Buttons
.............................. 2-41
E
Easy Exit Seat ............................................... 2-48
Electrical System
............................................ 5-87
Add-on Equipment
...................................... 5-87
Fuses and Circuit Breakers
........................... 5-87
Power Windows and Other Power Options
...... 5-87
Windshield Wiper Fuses
............................... 5-87
Electrochromic Mirror Operation
................ 2-32
Emissions Inspection and Maintenance
Programs
....................................... .... 3-40
5