
The 2003 Pontiac  Grand  Prix  Owner  Manual a 
Seats  and  Restpaint  Systems ........................... ? -1 
Front  Seats ............................................... 1-2 
Safety  Belts 
.............................................. 1-7 
Child  Restraints 
....................................... 1-29 
Supplemental  Restraint  System 
(SRS) ......... 1-51 
Restraint  System  Check 
............................ 1-58 
Keys 
........................................................ 2-3 
Doors  and  Locks 
....................................... 2-8 
Windows 
................................................. 2-1 3 
Theft-Deterrent  Systems 
............................ 2-1 5 
Starting  and Operating  Your Vehicle 
........... 2-19 
Mirrors 
.................................................... 2-33 
Onstar@  System 
...................................... 2-38 
Storage  Areas 
......................................... 2-40 
Sunroof 
.................................................. 2-42 
Vehicle  Personalization 
............................. 2-43 
Instrument Panel  Overview 
.......................... 3-2 
Climate  Controls 
...................................... 3-20 
Warning  Lights, Gages  and  Indicators 
......... 3-23 
Driver  Information Center  (DIC) 
.................. 3-38 
Trip  Computer 
......................................... 3-40 
Audio  System(s) 
....................................... 3-44 
Features  and Controls ..................................... 2-1 
Instrument  Panel ............................................. 3-1 
~rivingi yoerr Vehicle ....................................... 4-1 
Your  Driving, the  Road, and Your  Vehicle 
..... 4-2 
Towing 
................................................... 4-33 
Service 
..................................................... 5-3 
Fuel 
......................................................... 5-5 
Checking  Things  Under  the Hood 
............... 5-10 
Headlamp  Aiming 
..................................... 5-59 
Bulb  Replacement 
.................................... 5-60 
Windshield  Wiper  Blade  Replacement 
......... 5-67 
Tires 
...................................................... 5-68 
Appearance  Care 
..................................... 5-88 
Vehicle  Identification 
................................. 5-96 
Electrical  System 
...................................... 5-97 
Capacities  and Specifications 
................... 5-1 02 
Normal  Maintenance  Replacement  Parts .... 5-1  04 
Maintenance Schedule ........................... ,6-1 .. 
Maintenance  Schedule ................................ 6-2 
Customer Assistance  Information .................... 7-1 
Customer  Assistance  Information 
.................. 7-2 
Service and  Appearance  Care .......................... 5-1 
Reporting  Safety  Defects 
......................... 7-9 
Index ........................................ ..... 1  

These are some  examples of vehicle  symbols  you  may find on your vehicle: 
POSSlBLE A 
CAUTION 
INJURY 
PROTECT  EYES  BY 
SHIELDING 
CAUSTIC 
BAlTERY 
4CID  COULD  CAUSE 
BURNS 
AVO1 
D 
SPARKS OR 
FLAMES 
SPARK  OR  FLAME 
\\I/' 
COULD 
EXPLODE  BAlTERY  LATCH  BOTH  LAP  AND 
SHOULDER  BELTS 
TO 
PROTECT  OCCUPANT 4 
DO  NOT TWIST SAFETY 
BELT  WHEN  AlTACHING 
FASTEN  SEAT 
BELTS 
MOVE  SEAT  FULLY 
\!$% 
REARWARD* /z 
SECURE 
CHILD  SEAT 
PULL  BELT 
COMPLETELY 
THEN  SECURE  CHILD  SEAT 
TI POWER 
WINDOW  DO  NOT  INSTALL 
A  REAR-FACING 
CHILD  RESTRAINT  IN  THIS  SEATING  POSITION 
DO NOT  INSTALL  A 
'ORWARD-FACING  CHILD  RESTRAINT  IN  THIS  SEATING 
POSITION 
DOOR LOCK 
UNLOCK 
L 
LlGHTlNG - MASTER SWITCH e- / ,  
SIGNALS  TURN 
PARKING 
pf 
LAMPS 
RUNNING  LAMPS 
LAMPS 
so 
ENGINE 
COOLANT  TEMP 
CHARGING  BAlTERY 
SYSTEM 
COOLANT 
d 
ENGINE  OIL  PRESSURE 
Wb 
ANTI-LOCK (@) 
BRAKES  ENGINE 
COOLANT  FAN 
OWNERS  MANUAL 
SERVICE 
MANUAL  

Q: If I’m a good driver, and I never drive far from 
A: You  may  be an  excellent driver, but if you’re  in an 
accident 
- even  one  that  isn’t your fault - you and 
your  passengers  can be hurt. Being  a  good 
driver  doesn’t protect  you from things  beyond your 
control,  such as bad drivers. 
Most accidents occur within 
25 miles (40 km)  of 
home.  And the greatest  number of serious injuries 
and  deaths occur  at  speeds of less than 
40 mph (65 km/h). 
Safety belts are  for everyone. 
home,  why should I wear  safety  belts? 
How to Wear  Safety  Belts  Properly 
This  part  is only for  people  of adult  size. 
Be  aware  that there are  special  things 
to know  about 
safety belts and children.  And there are  different 
rules for  smaller children  and babies.  If  a child  will  be 
riding  in your vehicle,  see Older Children  on  page 
1-29 
or Infants  and Young  Children  on  page 1-32. Follow 
those rules for  everyone’s protection. 
First, you’ll  want to know  which  restraint systems  your 
vehicle  has. 
We’ll  start with  the driver  position. 
Driver  Position 
This  part describes the  driver’s  restraint  system. 
Lap-Shoulder Belt 
The driver  has a lap-shoulder belt.  Here’s  how to wear 
it properly. 
1. Close  and  lock the  door. 
2.  Adjust the seat 
so you  can  sit  up  straight. 
To see  how,  see  “Seats’’  in the  Index. 
1-12  

Safety Belt Use During  Pregnancy 
Safety  belts work  for  everyone, including pregnant 
women.  Like all occupants, they are  more likely to  be 
seriously  injured 
if they  don’t  wear  safety belts. 
A pregnant woman should wear  a  lap-shoulder  belt, 
and the  lap portion should  be  worn  as  low  as  possible, 
below  the rounding,  throughout  the pregnancy. 
The  best  way to protect the fetus is to  protect  the 
mother.  When 
a safety belt  is worn  properly, it’s  more 
likely that  the fetus  won’t  be  hurt in a crash.  For 
pregnant  women, as for  anyone,  the  key to making 
safety belts effective is wearing  them properly. 
Right  Front  Passenger  Position 
To learn  how to wear  the  right  front passenger’s  safety 
belt  properly,  see 
Driver  Position  on page 7-12. 
The right front passenger’s  safety  belt  works the same 
way  as the  driver’s  safety  belt 
- except  for  one 
thing. 
If you  ever  pull the shoulder  portion of the  belt  out 
all  the  way,  you  will engage  the  child restraint  locking 
feature. 
If this  happens,  just let  the  belt go back  all 
the  way  and  start again. 
1-20  

Doors and Locks 
Door Locks 
There are several  ways to lock  and unlock  your  vehicle. 
To  lock  or unlock  your vehicle from  the  outside,  use 
your  key  or  remote  keyless entry transmitter. 
Unlocked doors can  be  dangerous. 
Passengers - especially children - can 
easily  open the doors and  fall  out of a 
moving  vehicle.  When a door  is locked, 
the handle won’t open  it.  You  increase the 
chance  of  being thrown out 
of the vehicle 
in  a crash  if the  doors  aren’t  locked. 
So, 
wear safety  belts properly and lock the 
doors  whenever  you drive. 
vehicles  may  be  unable to get  out. 
A child 
can  be overcome by  extreme  heat  and can 
suffer  permanent  injuries or even  death 
from  heat  stroke.  Always lock your  vehicle 
whenever  you leave 
it. 
unlocked door  when you slow  down or 
stop your  vehicle. Locking your doors  can 
help  prevent  this  from  happening. 
Young children  who  get into unlocked 
Outsiders  can  easily  enter  through an 
To unlock or lock  your  doors  from inside  the  vehicle, 
push the manual  lever forward  or rearward. 
2-8  

If you  need to  reduce  your  speed  as you  approach  a 
curve, do  it  before you enter  the curve, while your front 
wheels  are straight ahead. 
Try  to  adjust your  speed 
so you  can “drive” through  the 
curve.  Maintain  a reasonable, steady speed.  Wait to 
accelerate until  you are out of the  curve,  and  then 
accelerate gently into the straightaway. 
Steering  in Emergencies 
There  are times  when  steering  can be more  effective 
than  braking. For example,  you  come over a hill and  find 
a  truck  stopped  in your lane,  or a car  suddenly  pulls out 
from  nowhere,  or a child darts  out from  between  parked 
cars  and stops right  in front  of  you.  You  can avoid these 
problems  by  braking 
- if you  can stop in time. But 
sometimes  you  can’t; there isn’t  room. That’s the time 
for  evasive action 
- steering  around the problem. 
Your  vehicle  can perform very well  in emergencies  like 
these.  First  apply your brakes. 
See  Braking  on page 
4-6. It is better to  remove as much 
speed  as you  can  from  a possible collision.  Then 
steer  around  the  problem,  to the  left  or right  depending 
on  the  space available.  An  emergency 
like this requires  close  attention  and  a 
quick  decision. 
If you  are  holding the steering  wheel  at 
the  recommended 
9 and 3 o’clock  positions,  you 
can  turn  it  a full 
180 degrees  very  quickly  without 
removing  either hand.  But  you  have  to act  fast,  steer 
quickly, and just  as quickly  straighten  the  wheel 
once  you  have  avoided the  object. 
The  fact that  such  emergency  situations are always 
possible is  a  good reason to practice  defensive  driving 
at  all  times and  wear  safety  belts properly. 
4-1 4  

If  No  Steam is Coming  From  Your  Engine .......... 5-35 
If  Steam 
Is Coming  From  Your Engine ............... 5-34 
If  the  HUD  Image 
Is Not  Clear ......................... 3-18 
If  the  Light 
Is Flashing ..................................... 3-33 
If  the  Light 
Is On  Steady ................................. 3-33 
If  You  Are  Stuck  in Sand,  Mud,  Ice or  Snow 
....... 4-32 
If  You  Can’t  See  the  HUD  Image  When  the 
Ignition 
Is On .............................................. 3-18 
If  You 
Do Decide  To Pull  A  Trailer ..................... 4-38 
Ignition Positions 
............................................. 2-1  9 
Ignition Transaxle  Lock  Check 
.......................... 6-12 
Infants  and Young  Children,  Restraints 
............... 1-32 
Inflation 
-- Tire  Pressure ............................... 5-68 
Inspection  Brake  System 
........................... ........... 6-14 
Engine  Cooling  System 
................................ 6-13 
Exhaust  System 
.......................................... 6-13 
Fuel  System 
............................................... 6-13 
Part  C 
- Periodic  Maintenance ....................... 6-13 
Steering,  Suspension  and  Front  Drive Axle 
Boot  and  Seal 
......................................... 6-1 3 
Throttle  System 
........................................... 6-14 
Cluster 
....................................................... 3-24 
Overview 
..................................................... 3-2 
Instrument Panel Brightness 
............................. 3-1  2 
If 
You’re  Caught  in a Blizzard 
........................... 4-29 
Instrument Panel  Instrument Panel 
Fuse Block 
........................ 5-98 
Interior Plastic  Components .............................. 5-90 
Interior 
Lamps 
................................................ 3-12 
Jump  Starting 
................................................. 5-53 
Key  Lock  Cylinders  Service .............................. 6-10 
Keyless  Entry  System 
....................................... 2-4 
Keys 
............................................................... 2-3 
L 
Lamps  Exterior 
............................................... 3-10 
Interior 
....................................................... 3-12 
Lap  Belt 
........................................................ 1-21 
Lap-Shoulder  Belt 
................................... 1.12. 1-23 
Last  Door  Closed  Locking 
.......................... 2.9. 2-47 
LATCH  System  Child  Restraints 
........................................... 1-41 
Securing  a Child  Restraint  Designed for 
the  LATCH  System 
................................... 1-43 
Leather 
......................................................... 5-90 
Leaving  Your Vehicle 
....................................... 2-11 
7  

Safety  Belts (cont.) 
How  to Wear  Safety  Belts  Properly 
................ 1-12 
Rear  Safety  Belt  Comfort  Guides  for 
Children  and Small Adults 
......................... 1-26 
Rear  Seat  Passengers 
................................. 1-22 
Right  Front  Passenger  Position 
...................... 1-20 
Safety  Belt Extender 
.................................... 1-28 
Safety  Belt  Use  During Pregnancy 
................. 1-20 
Safety  Belts  Are  for  Everyone 
......................... 1-7 
Safety  Chains 
................................................. 4-40 
Safety  Warnings  and Symbols 
.............................. III 
Scheduled  Maintenance ..................................... 6-5 
Seats  Head  Restraints 
............................................ 1-6 
Heated  Seats 
............................................... 1-4 
Manual 
........................................................ 1-2 
Power  Lumbar 
.............................................. 1-3 
Reclining  Seatbacks 
...................................... 1-4 
Six-Way  Power  Driver 
.................................... 1-3 
Center  Rear  Seat  Position 
............................ 1-46 
Designed  for  the LATCH  System 
................... 1-43 
Rear  Outside  Seat Position 
........................... 1-43 
Right  Front  Seat Position 
.............................. 1-48 
Security  Light 
................................................. 3-36 
Questions 
and  Answers  About  Safety  Belts 
..... 1-1 1 
... 
Securing  a  Child  Restraint 
Security While You Travel 
.................................. 7-5  Service 
....................................................... 5-3 
Adding  Equipment  to the  Outside  of 
Your  Vehicle 
.............................................. 5-4 
Doing  Your Own  Work 
................................... 5-4 
Engine  Soon  Light 
....................................... 3-32 
Publications Ordering Information 
................... 7-10 
Service  Bulletins 
............................................. 7-10 
Service  Engine  Soon  Light  in the  United  States 
or  Check  Engine  Light  in Canada 
.................. 3-32 
Service  Manuals 
............................................. 7-10 
Setting  Preset  Stations 
.................... 3-45, 3-49, 3-52 
Setting the  Time 
............................................. 3-44 
Setting the  Tone  (BassTTreble) 
.......... 3-46, 3-49,  3-52 
Sheet  Metal Damage 
....................................... 5-93 
Shift  Lock  Release 
.......................................... 2-20 
Shifting  Into  Park  (P) 
....................................... 2-28 
Shifting  Out of  Park  (P) 
................................... 2-30 
Shoulder  Belt Height  Adjuster 
........................... 1-14 
Skidding 
........................................................ 4-17 
Some  Other  Rainy  Weather  Tips 
....................... 4-21 
Special  Fabric Cleaning  Problems 
..................... 5-89 
Specifications, Capacities 
............................... 5-1 02 
Speedometer 
.................................................. 3-25 
Starter  Switch  Check 
....................................... 6-11 
Starting  Your 3100 
V6 Engine ........................... 2-21 
Starting  Your 3800  Series 
II V6 Engine ................ 2-22 
Starting  Your Engine 
....................................... 2-20 
12