
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  

Section 1 Seats  and  Restraint Systems 
Front Seats ...................................................... 1.2 
Manual  Seats 
................................................ 1.2 
Six-Way  Power  Driver  Seat .............................. 1-3 
Power  Lumbar 
............................................... 1-3 
Heated  Seats 
................................................. 1-4 
Head  Restraints 
............................................. 1-6 
Safety  Belts:  They  Are  for  Everyone 
................. 1-7 
Questions  and  Answers  About  Safety  Belts 
...... 1.11 
How  to Wear  Safety  Belts  Properly 
................. 1.12 
Driver  Position 
.............................................. 1.1 2 
Safety  Belt  Use  During Pregnancy 
.................. 1-20 
Reclining 
Seatbacks 
........................................ 1-4 
Safety  Belts ..................................................... 1-7 
Right  Front  Passenger  Position 
....................... 1-20 
Center  Passenger  Position 
............................. 1-21 
Rear  Seat  Passengers .................................. 1-22 
Rear  Safety  Belt Comfort  Guides  for  Children 
and  Small  Adults 
....................................... 1.26 
Safety  Belt  Extender 
..................................... 1-28 
Child  Restraints ............................................. 1.29 
Older  Children 
.............................................. 1-29 
Infants  and  Young  Children 
............................ 1.32 
Child  Restraint  Systems 
................................. 1-35 
Where  to  Put the  Restraint 
............................. 1-38  Top 
Strap 
.................................................... 1.39 
Top  Strap  Anchor  Location 
............................. 1.40 
Lower  Anchorages  and Top  Tethers  for 
Children  (LATCH  System) 
........................... 1.41 
Securing  a Child  Restraint  Designed for the 
LATCH  System 
......................................... 1-43 
Securing  a Child  Restraint  in 
a Rear Outside 
Seat  Position 
............................................ 1.43 
Securing  a  Child  Restraint  in a  Center  Rear 
Seat  Position 
............................................ 1-46 
Securing  a Child  Restraint  in the  Right  Front 
Seat  Position 
............................................ 1.48 
Supplemental Restraint 
System  (SRS) 
............................................. 1-51 
Where  Are  the Air  Bags? 
............................... 1-53 
When  Should  an  Air  Bag  Inflate? 
.................... 1-55 
What  Makes  an Air  Bag  Inflate? 
..................... 1-55 
How  Does  an  Air  Bag  Restrain? 
..................... 1-55 
What  Will You  See  After an  Air  Bag  Inflates? 
....... 1.56 
Servicing  Your Air Bag-Equipped  Vehicle 
......... 1-57 
Checking  Your  Restraint Systems ................... 1.58 
Replacing  Restraint  System Parts 
After  a  Crash 
........................................ 1-58 
Restraint  System  Check .................................. 1-58  

But don’t have  a  seatback reclined if your vehicle is 
moving. 
Sitting in a reclined  position when your  vehicle 
is  in  motion  can  be  dangerous.  Even  if  you 
buckle  up, your  safety  belts can’t  do  their  job 
when  you’re  reclined 
like this. 
The  shoulder belt  can’t do its  job  because 
it 
won’t be  against  your body.  Instead, it will be 
in  front  of  you.  In a crash you  could  go  into 
it, 
receiving neck  or  other  injuries. 
The  lap  belt can’t  do its job  either. 
In a crash 
the belt  could go up over  your  abdomen.  The 
belt forces would  be  there, not at your  pelvic 
bones.  This could  cause serious internal 
injuries. 
For  proper protection  when  the vehicle 
is in 
motion,  have the seatback  upright. Then sit 
well  back  in the  seat  and  wear  your  safety belt 
properly. 
1-5  

Safety  Belts 
Safety  Belts:  They  Are  for Everyone 
This part of the  manual  tells you  how to  use safety 
belts  properly. 
It also tells you some  things you  should 
not  do  with  safety  belts. 
Don’t  let  anyone  ride where  he  or  she can’t 
wear  a  safety  belt properly.  If  you are 
in a 
crash  and  you’re  not wearing  a  safety  belt, 
your  injuries  can  be much worse.  You  can 
hit 
things inside the vehicle  or be  ejected  from it. 
You  can  be  seriously injured or killed. In the 
same  crash,  you might  not  be, if you  are 
buckled 
up. Always  fasten your  safety  belt, 
and  check  that your  passengers’  belts are 
fastened  properly too. 
I 
It is extremely  dangerous to E*.-- .n a cargo 
area,  inside  or  outside  of  a  vehicle. 
In a 
collision,  people riding 
in these  areas  are  more 
likely  to be seriously  injured  or killed. Do not 
~ allow  people  to ride in any  area  of your  vehicle 
~ that is not  equipped  with seats  and  safety 
belts.  Be  sure everyone 
in your  vehicle is in a 
seat  and  using a  safety  belt properly. 
Your  vehicle has a light 
that comes  on as a 
reminder  to buckle up. 
See  Safety 
Belt Reminder 
Light on  page 
3-26. 
1-7  

In most states and in all  Canadian  provinces, the  law 
says  to wear  safety belts. Here’s  why: 
They work. 
You never  know if you’ll  be  in a crash.  If  you do have  a 
crash,  you don’t  know 
if it will  be a bad one. 
A  few  crashes  are mild, and  some  crashes  can be 
so 
serious that  even buckled  up,  a person  wouldn’t  survive. 
But most crashes are  in between.  In many  of them, 
people  who buckle  up  can  survive  and  sometimes  walk 
away.  Without belts they  could have  been  badly hurt 
or  killed. 
After  more than 
30 years  of safety belts  in vehicles,  the 
facts  are clear. 
In most  crashes buckling  up  does 
matter 
... a  lot! 
Why Safety Belts Work 
When  you  ride in or  on anything,  you  go  as  fast  as 
it  goes. 
Take the simplest vehicle.  Suppose  it’s just a  seat  on 
wheels. 
1-8  

or the  safety  belts! 
With  safety  belts, you  slow  down  as the vehicle  does. 
You  get  more  time  to stop.  You  stop over more distance, 
and  your  strongest  bones  take the forces. That’s why 
safety  belts make  such  good  sense. 
Questions and Answers  About 
Safety  Belts 
0: Won’t I be trapped in  the  vehicle  after  an 
accident  if 
I’m wearing a  safety  belt? 
A: You could  be - whether  you’re  wearing  a  safety 
belt  or not. But  you  can  unbuckle  a safety  belt, 
even 
if you’re upside  down.  And  your  chance 
of  being conscious during  and after  an accident, 
so you  can unbuckle  and  get out, is much  greater 
if you are belted. 
Q: If my  vehicle  has air  bags,  why  should I have to 
A: Air  bags  are  in many vehicles today  and will  be 
in most of them  in the future. But  they  are 
supplemental  systems  only; 
so they work  with 
safety belts 
- not instead of them.  Every air  bag 
system  ever offered for  sale  has required  the  use of 
safety belts.  Even 
if you’re in a vehicle that  has 
air  bags,  you still have  to buckle  up  to get the  most 
protection. That’s true not only  in frontal collisions, 
but especially in side  and other collisions. 
wear  safety  belts? 
1-1 1  

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