Page 254 of 395

/1 CAUTION: 
You can be injured  and  your  vehicle  could  be 
damaged 
if you  try to  do  service  work  on  a 
vehicle  without  knowing  enough  about  it. 
0 Be  sure  you have  sufficient  knowledge, 
experience,  the proper  replacement  parts 
and  tools  before  you  attempt any  vehicle 
maintenance  task. 
Be  sure  to  use  the  proper nuts,  bolts  and 
other  fasteners.  “English”  and  “metric” 
fasteners 
can be  easily  confused. If you  use 
the  wrong  fasteners,  parts can later  break 
or  fall 
off. You  could  be  hurt. 
Adding Equipment to the Outside of 
Your Vehicle 
Things  you  might  add  to  the  outside  of  your  vehicle  can 
affect  the  airflow  around  it. This may cause  wind  noise 
and  affect  windshield  washer  performance.  Check  with 
your  dealer  before  adding  equipment  to  the outside 
of 
your  vehicle. 
Fuel 
The  8th  digit  of your  vehicle  identification  number 
(VIN)  shows  the  code  letter  for your  engine.  You will 
find  the  VIN  at  the  top  left 
of your  instrument  panel. 
(See  .“Vehicle  Identification  Number” 
in the  Index.) 
If you  have  the 3800 engine (VIN Code K), use  regular 
unleaded gasoline  rated at 87 octane  or  higher. If you’re 
using  fuel  rated  at the  recommended  octane  or  higher 
and  you  hear  heavy  knocking,  your  engine  needs 
service.  But  don’t 
worry if you hear a little pinging 
noise  when  you’re  accelerating  or  driving  up  a 
hill. 
That’s  normal,  and  you  don’t  have  to  buy  a  higher  octane  fuel  to  get 
rid of  pinging.  It’s  the  heavy,  constant 
knock  that  means  you  have  a  problem. 
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If you  have  the 3800 Supercharged  engine (VIN Code 
l), use  premium  unleaded  gasoline  rated  at 91 octane 
or  higher.  With  the 
3800 Supercharged  engine,  in an 
emergency,  you  may  be  able  to  use  a  lower  octane -- as 
low  as 
87 -- if heavy  knocking  does  not  occur. If you 
are  using 
91 or  higher  octane  unleaded  gasoline  and 
you  hear  heavy  knocking,  your  engine  needs  service. 
At  a  minimum,  the  gasoline  you  use  should  meet  specifications 
ASTM D4814 in the  United  States  and 
CGSB 3.5-M93 in  Canada.  Improved  gasoline 
specifications  have  been  developed  by  the  American 
Automobile  Manufacturers  Association 
(AAMA) for 
better vehicle performance and engine protection. 
Gasolines  meeting  the AAMA specification  could 
provide  improved  driveability  and  emission  control 
system  protection  compared  to  other  gasolines. 
Be  sure  the  posted  octane  for  premium  is at  least 
91 (at 
least 
89 for  middle  grade  and 87 for  regular). If the 
octane  is  less  than 
87, you  may  get  a  heavy  knocking 
noise  when  you  drive.  If  it’s  bad  enough,  it  can  damage 
your  engine. 
If your  vehicle  is certified  to  meet  California  Emission 
Standards  (indicated 
on the  underhood  emission  control 
label),  it is designed  to operate  on  fwels  that  meet 
California  specifications.  If such  fuels  are  not  available 
in  states  adopting  California  emissions  standards,  your  vehicle  will  operate  satisfactorily 
on fuels  meeting 
federal  specifications,  but  emission  control  system 
performance  may  be  affected.  The  malfunction  indicator  lamp  on  your  instrument  panel  may 
turn on  and/or  your 
vehicle  may  fail  a  smog-check  test.  If this  occurs,  return 
to 
your authorized  Pontiac  dealer  for  diagnosis  to 
determine  the  cause  of  failure. 
In the  event  it is 
determined  that  the  cause  of  the  condition 
is the  type  of 
fuels  used,  repairs 
may not  be  covered  by  your  warranty. 
Some  gasolines  that  are  not  reformulated 
for low 
emissions  contain 
an octane-enhancing  additive  called 
methylcyclopentadienyl  manganese  tricarbonyl 
(MMT); 
ask your  service  station  operator  whether  or  not his fuel 
contains 
MMT. General  Motors  does  not  recommend the 
use  of  such  gasolines.  If  fuels  containing MMT are  used, 
spark plug  life  may  be  reduced  and  your  emission 
control  system  performance  may  be  affected.  The 
malfunction  indicator  lamp 
on your  instrument  panel 
may 
turn on.  If this occurs,  return  to your  authorized 
Pontiac  dealer  for  service. 
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        Page 264 of 395

Supercharged  Engine (If Equipped) 
Your  vehicle  may  have a 3800 Supercharged  engine. 
The  supercharger  is a  device  designed  to  pump  more  air 
into  the  engine  than  it  would  normally  use. 
This air, 
mixed  with  fuel,  creates  increased  engine  power.  Since 
the  supercharger  is a  pump  and  is  driven  from  an  engine 
accessory  drive  belt,  increased  pressure  is available  at 
all  driving  conditions. 
The  Powertrain  Control  Module  (PCM),  works  with  a  vacuum  control  to regulate  the  increased  pressure 
required  during  specific  driving  conditions.  When  this 
increased  pressure  or  boost  is not  desired,  such 
as during 
idling  and  light  throttle  cruising,  the  excess 
air that  the 
supercharger  is pumping  is  routed  through 
a bypass. 
All of these controls, working together, provide high 
performance  character  and  fuel  efficiency  in  the 
3800 V6 Supercharged  engine. 
Engine  Oil 
CHECK OIL 
LEVEL 
If the  CHECK OIL LEVEL 
light  on  the  instrument  panel 
comes 
on, it  means  you need 
to  check  your  engine oil level 
right  away. 
For more 
information, 
see “Check Oil 
Level Light” in the  Index.  You 
should  check  your  engine  oil  level  regularly; 
this is 
an  added  reminder. 
It’s 
a good  idea  to check  your  engine  oil  every  time  you 
get  fuel. 
In order  to  get an accurate  reading,  the  oil  must 
be  warm  and  the  vehicle  must  be  on  level  ground. 
Turn 
off the  engine  and  give  the  oil  a  few  minutes  to 
drain  back  into  the  oil  pan.  If  you  don’t,  the  oil  dipstic\
k 
might  not  show 
the actual  level. 
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        Page 302 of 395

Cleaning  Leather 
Use a  soft  cloth  with  lukewarm  water  and  a  mild  soap  or 
saddle  soap  and  wipe  dry  with  a  soft  cloth.  Then,  let  the 
leather 
dry naturally. Do not  use  heat  to  dry. 
0 For stubborn  stains,  use  a  leather  cleaner.  See  your 
Never use  oils,  varnishes,  solvent-based  or  abrasive 
dealer  for  this  product. 
cleaners,  furniture  polish 
or shoe  polish  on  leather. 
Soiled  or  stained  leather  should  be  cleaned 
immediately. 
If dirt  is  allowed  to  work  into  the 
finish,  it  can  harm  the  leather. 
Cleaning  the Top of the  Instrument  Panel 
Use only mild soap and water to clean the top  surfaces 
of  the  instrument  panel.  Sprays  containing  silicones  or 
waxes  may  cause  annoying  reflections  in  the  windshield  and  even  make  it  difficult 
to sed Wough the windshield 
under  certain  conditions. .. 
Cleaning  Interior  Plastic  Components 
Use  only  a  mild  soap and  water  solution  on  a  soft 
cloth  or sponge.  Commercial  cleaners  may  affect  the 
surface finish. 
Care of Safety Belts 
Keep  belts  clean  and  dry. 
~ 
A CAUTION: 
- 
Do not  bleach or dye  safety  belts. If you  do,  it 
may  severely  weaken  them.  In  a  crash,  they 
might  not  be  able  to  provide  adequate  protection.  Clean  safety  belts  only  with  mild 
soap and 
lukewarm  water. 
Cleaning  Glass  Surfaces 
Glass  should  be  cleaned  often.  GM  Glass  Cleaner  (GM 
Part No. 1050427) or  a  liquid  household  glass  cleaner 
will  remove  normal  tobacco  smoke  and  dust 
films on 
interior  glass. 
Don’t  use  abrasive  cleaners  on glass,  because  they 
may  cause  scratches.  Avoid  placing  decals 
on the inside 
rear  window,  since  they  may  have  to  be  scraped 
off later. 
If abrasive  cleaners  are  used  on the  inside  of the  rear 
window,  an  electric  defogger  element  may  be  damaged. 
Any  temporary  license  should  not  be  attached  across  the 
defogger  grid. 
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        Page 307 of 395
Appearance  Care  Materials Chart 
12377984 I 16 oz. (0.473 L) I Surface Cleaner I Removes  contaminants,  blemishes  and  swirl marks 
See  your  General  Motors Parts Department for these  products. ** Not  recommended  for use on instrument  panel  vinyl. 
See  “Fluids 
and Lubricants” in the Index.  
     
        
        Page 308 of 395
Vehicle  Identification  Number  (VIN) 
SAMPLE4UXWM072675 I 
ENGINEA998 7  ASSEMBLY 
CODE MODEL YEAR PLANT 
This is the legal  identifier  for  your vehicle.  It appears 
on  a plate  in the  front  corner  of the instrument panel, 
on 
the driver’s side.  You can see it if  you  look through  the 
windshield  from  outside  your  vehicle. The VIN also 
appears  on the  Vehicle  Certification and  Service Parts 
labels and the certificates of title and registration. 
Engine  Identification 
The 8th character  in your VIN is the engine  code. This 
code will help  you identify  your  engine,  specifications 
and replacement parts. 
Service  Parts  Identification Label 
You’ll  find this  label  on  your  spare  tire cover. It’s very 
helpful  if  you ever need  to  order  parts. On  this label  is: 
your VIN, 
the model designation, 
paint information and 
a list of all production  options and 
special  equipment. 
Be  sure  that this label  is not  removed  from the vehicle.  
     
        
        Page 311 of 395
Driver’s Side Fuse Block 
The  driver’s  side fuse block is to the  left of the  steering 
wheel,  under  the  instrument  panel. 
Snap 
off the  cover  to  reveal  the  fuses.  You’ll  find a fuse 
puller  clipped 
to the  inside of the  cover.  Place  the  wide 
end  of  the  fuse  puller  over  the  plastic  end 
of the  fuse. 
Squeeze 
the ends over the fuse and pull it out. 
Spare  fuses  are  located 
in the slots labeled “Spare” on 
the  following  chart. 
When  finished,  replace  the  cover 
by snapping it back  up 
into  place. 
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Fuse 
7D 
8D 
9D 
1E 
2E 
3E 
4E 
5E 
6E 
7E 
8E 
9E 
Usage 
Not  Used 
Radio 
Not  Used 
Not  Used 
Air 
Bag System,  PASS-Key 
Not  Used 
Not  Used  Rear  Defog 
Not  Used  Non-OBD 
II Engine  Miscellaneous 
Wipers,  Washer 
Not  Used 
Passenger’s Side Fuse Block 
Additional  fuses  are located  in the relay  center,  on the 
passenger’s  side,  below  the instrument  panel.  You must 
remove  the  sound  insulator 
on the  right  side of the 
passenger  footwell 
to replace  these  fuses. 
Since  replacing  these  fuses is difficult.  We recommend 
that  you  see your  dealer 
if you  need  one replaced. 
6-62