
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  

Front Seats 
Manual Seats 
You can lose control of the vehicle  if you  try  to 
adjust a manual driver’s  seat  while  the  vehicle 
is moving.  The sudden movement could startle 
and  confuse  you,  or make you  push 
a pedal 
when  you  don’t  want  to.  Adjust the  driver’s 
seat  only  when the vehicle is not moving. 
If your  vehicle is  equipped with manual  seats,  lift the 
lever, located  under the front 
of the seat,  using  a twisting 
motion. This will  unlock the  seat. Slide the  seat to 
where  you  want  it and release the lever. 
Try to move 
the  seat  back  and  forth to make  sure the  seat  is locked 
in  place. 
1 -2  

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  

2. Push the latch plate  into  the buckle until it  clicks. 
Pull  up  on  the latch  plate  to  make sure 
it is 
secure. 
When  the shoulder  belt is  pulled  out all the  way, 
it  will  lock. 
If it does,  let  it go back  all the  way  and 
start  again. 
If the belt  is not  long  enough,  see 
Safety  Belt  Extender  on  page 
1-28. 
Make sure  the  release button  on  the  buckle is 
positioned 
so you would  be able  to unbuckle the 
safety belt quickly  if you  ever  had to. 
3. To make  the  lap part  tight,  pull down  on  the  buckle 
end  of the  belt  as  you pull up  on  the  shoulder  part. 
1-24  

Section 2 Features and Controls 
Keys ............................................................... 2.3 
Remote  Keyless  Entry  System 
......................... 2.4 
Remote Keyless  Entry  System  Operation ........... 2.5 
Doors  and  Locks ............................................. 2-8 
Door  Locks 
.................................................... 2-8 
Power  Door  Locks 
.......................................... 2-9 
Last  Door  Closed  Locking 
................................ 2-9 
Programmable  Automatic  Door  Locks 
.............. 2-10 
Lockout  Protection 
........................................ 2-10 
Leaving  Your  Vehicle 
.................................... 2-1  1 
Trunk 
.......................................................... 2-1  1 
Windows ........................................................ 2.13 
Power  Windows 
............................................ 2-14 
Sun  Visors 
................................................... 2.14 
Theft-Deterrent  Systems .................................. 2.15 
Content  Theft-Deterrent 
................................. 2.15 
PASS-Key@ 
Ill .......................................... 2.16 
PASS-Key@ 
Ill Operation ........................... 2-17 
Starting  and  Operating  Your  Vehicle ............... -2-1 9 
New  Vehicle  Break-In 
.................................... 2-19 
Ignition Positions 
.......................................... 2.19 
Starting  Your  Engine 
..................................... 2-20 
Engine  Coolant Heater 
.................................. 2-23 
Automatic  Transaxle Operation 
....................... 2.24  Shifting  Into 
Park 
(P) ..................................... 2-28 
Parking  Over  Things  That  Burn 
....................... 2-30 
Shifting 
Out 
of Park (PI ................................. 2-30 
Engine  Exhaust ............................................ 2-31 
Running  Your  Engine  While You  Are  Parked 
.... 2-32 
Mirrors ........................................................... 2-33 
Manual  Rearview  Mirror 
................................ -2-33 
Automatic  Dimming  Rearview  Mirror with 
Onstar@,  Compass  and Temperature 
Automatic  Dimming  Rearview  Mirror with 
Compass  and  Temperature  Display 
.............. 2-34 
Outside  Power Mirrors 
................................... 2-37 
Outside  Convex Mirror 
................................... 2-37 
OnStar@  System ............................................. 2-38 
Storage Areas .... -2-40 
Glove  Box 
................................................... 2-40 
Overhead  Console 
........................................ 2-40 
Center  Console  Storage Area 
......................... 2-40 
Assist  Handles 
............................................. 2-41 
Purse  or  Litter Bag Holder 
............................. 2-41 
Rear  Storage  Area 
........................................ 2-41 
Convenience  Net 
.......................................... 2-41 
Trunk  Access  Panel 
...................................... 2-41 
Display 
.................................................... 2-33 
.................................... 
Parking  Brake .............................................. 2-27 Sunroof .................. ........... ............. 2.42 
2-1  

Your vehicle  has the PASS-Key@ Ill vehicle theft 
system.  The key has  a transponder  in  the key  head  that 
matches  a  decoder  in  the vehicle’s steering column. 
If  a  replacement  key  or an  additional key is  needed, 
it  must  be purchased  from your dealer.  The key will  have 
PK3  stamped  on  it. 
Any  new  PASS-Key@ 
Ill key  must  be  programmed 
before  it will  start your vehicle.  See PASS-Key 
111 on 
page 2-16 for  more  information  on  programming 
your  new  key. 
In an emergency,  contact  Pontiac  Roadside Assistance. 
See  Roadside Assistance  Program  on page 
7-5 for 
more  information. 
Notice: Your vehicle has  a  number  of  features that 
can help prevent theft.  You  can have a lot  of trouble 
getting into  your vehicle 
if you  ever  lock your  keys 
inside.  You  may  even have to damage  your vehicle  to 
get  in. 
So be sure  you  have spare  keys. 
If your vehicle is  equipped with the OnStar  system  with 
an  active subscription and  you lock your  keys inside 
the  vehicle,  OnStar  may  be able  to send  a  command  to 
unlock your vehicle.  See OnStap  System on page 
2-38 
for  more information. 
Remote  Keyless  Entry  System 
Your  keyless entry  system operates  on a radio 
frequency subject  to Federal  Communications 
Commission  (FCC)  Rules and  with  Industry  Canada. 
This device complies  with  Part  15 of the  FCC  Rules. 
Operation  is subject  to the following  two  conditions: 
1. This device may  not  cause  interference, and 
2.  This device  must accept  any  interference  received, 
including interference that  may  cause  undesired 
operation  of the  device. 
This device complies  with  RSS-210 of Industry  Canada. 
Operation is subject to the following  two  conditions: 
1. This device may  not  cause  interference, and 
2.  This device  must  accept  any  interference  received, 
including interference that  may  cause  undesired 
operation  of the  device. 
Changes  or  modifications to this  system by other  than 
an  authorized service facility could void  authorization  to 
use  this equipment. 
2-4  

Changes  or modifications  to this  system  by other than 
an  authorized service facility could void  authorization  to 
use  this  equipment. 
PASS-Key@ 
Ill uses  a  radio frequency transponder  in 
the  key  that matches  a  decoder  in your vehicle. 
PASS-Key@ 111 Operation 
Your  vehicle  is equipped  with PASS-Key@ Ill 
(Personalized  Automotive Security System) 
theft-deterrent  system.  PASS-Key@ 
Ill is a passive 
theft-deterrent  system. This means  you  don’t  have  to do 
anything  special to arm  or disarm the system. It  works 
when  you  insert or  remove  the key  from the  ignition. 
When  the  PASS-Key@ 
Ill system  senses  that someone 
is using the  wrong  key, it shuts down the vehicle’s 
starter  and  fuel systems.  The  starter will not  work and 
fuel  will  stop  being delivered 
to the engine.  Anyone 
using  a  trial-and-error  method to start the vehicle will 
be 
discouraged  because of the  high  number of electrical 
key  codes. 
When  trying to  start  the  vehicle 
if the engine  does not 
start  and  the SECURITY  light comes  on,  the key 
may  have  a  damaged  transponder. Turn the ignition 
off and  try again. 
If the engine still does not  start, and the  key  appears 
to  be  undamaged,  try  another ignition  key.  At this time, 
you  may  also want  to check  the fuse,  see  Fuses 
and  Circuit  Breakers 
on page 5-97. If the engine  still 
does  not start with  the other  key, your vehicle  needs 
service. 
If your vehicle does  start, the first  key may 
be  faulty.  See your dealer  who can service  the 
PASS-Key@ 
Ill to  have  a  new  key made.  In  an 
emergency,  contact Pontiac  Roadside Assistance. 
See  Roadside Assistance  Program 
on page 7-5 for 
more  information. 
It is possible  for the  PASS-Key@ 
Ill decoder  to  learn 
the transponder value  of a  new  or replacement  key. 
Up  to 
10 additional  keys  may  be  programmed  for 
the vehicle. This  procedure is for  learning additional 
keys  only. 
If all the  currently  programmed  keys  are lost 
or do  not operate,  you must  see  your dealer or  a 
locksmith  who can service  PASS-Key@ 
Ill to have  keys 
made  and  programmed  to the  system. 
See  your dealer  or  a locksmith  who can service 
PASS-Key@ 
Ill to  get  a  new  key blank that  is cut  exactly 
as  the  ignition  key that operates  the system. 
2-1 7