Page 147 of 386
Downloaded from www.Manualslib.com manuals search engine r 
r 
Cruise  Engaged Light 
This light will come  on 
when  your cruise 
control  is set  to a 
selected  speed. 
Low  Coolant  Warning  Light 
-- If the coolant  level in the  radiator  is  low  by 3 quarts (2.8 L) or  more this 
light  will come  on. 
The light will stay  on until  you add  coolant. 
Continuing  to drive  your  vehicle  with  the “Low  Coolant”  warning  light 
See  “Engine  Coolant”  in the  Index  and have 
your vehicle  serviced  as  soon 
as  you  can. 
This  light  will come  on  when the ignition  is on,  but  the engine  is not 
running,  as a  check.  It doesn’t  have to be  fixed  right away. 
- . on, may  result  in damage  to  your engine. 
,. ~. .   
     
        
        Page 244 of 386
Downloaded from www.Manualslib.com manuals search engine The coolant  level should be at  or above “FULL COLD.” If it isn’t,  you 
may  have  a  leak  in the  radiator  hoses, heater  hoses, radiator,  water  pump 
or  somewhere  else 
in the cooling system. 
A CAUTION: 
Heater  and  radiator  hoses, and  other  engine parts,  can  be  very 
hot.  Don’t  touch  them. 
If you do,  you  can be burned. 
Don’t  run the engine  if there 
is a leak. If you run  the engine,  it 
could lose  all coolant.  That could  cause  an engine  fire, and you 
could be  burned.  Get  any  leak  fixed  before  you drive the vehicle. 
- 
1. . 
If there  seems  to  be no leak, check  to  see if the  fan or if equipped  electric -- 
engine fans are running.  If the  engine is overheating,  both  fans should  be 
running. 
If they  aren’t, your vehicle  needs service.   
     
        
        Page 245 of 386
Downloaded from www.Manualslib.com manuals search engine - How to Add Coolant to the Coohnt  Recovery  Tank 
If you haven’t found a problem  yet, but the coolant  level  isn’t  at  or above 
“FULL COLD,” add a 50/50 mixture  of clean  water  (preferably distilled) 
Coolant”  in the  Index  for  more  information  about  the  proper coolant 
mix.) 
- and a proper  antifreeze  at  the  coolant  recovery tank.  (See  “Engine 
,- 
A CAUTION: 
I Adding  only  plain  water  to  your  cooling  system can be 
dangerous.  Plain  water, or some  other  liquid like alcohol,  can 
boil  before  the  proper  coolant mix 
will. Your  vehicle’s  coolant 
water  or  the  wrong  mix,  your engine  could get too  hot  but you 
wouldn’t  get the  overheat  warning.  Your engine  could catch  fire 
water  and 
a pmqer  antifreeze. 
I warning  system is  set  for  the  proper  coolant mix. With  plain 
I and you or  others  could be burned. Use a 50/50 mix of clean 
23 1   
     
        
        Page 250 of 386
Downloaded from www.Manualslib.com manuals search engine 5. Put  the  cap back 
on  the  coolant 
recovery  tank,  but 
leave  the  radiator 
pressure  cap off. 
I 
6. Start  the  engine 
and  let it run  until 
you can feel  the 
upper  radiator 
hose  getting  hot. 
Watch  out  for  the 
engine  fans. 
7. By this time  the coolant  level  inside  the  radiator  filler  neck  may  be 
lower. 
If the  level is lower,  add  more of the  proper  mix through  the 
filler  neck until the level  reaches  the base  of 
the filler  neck. 
1 
u   
     
        
        Page 272 of 386

Downloaded from www.Manualslib.com manuals search engine A CAUTION: 
An electric fan  under  the  hood can start  up  and  injure  you  even 
when  the engine  is not  running.  Keep hands,  clothing  and tools 
away  from any  underhood  electric fan. 
A CAUTION: 
Things that  burn  can get on hot engine  parts  and  start  a fire. 
These  include  liquids  like  oil, coolant,  brake  fluid, windshield 
washer  and  other  fluids, and plastic  or rubber. 
You or  others 
could  be burned.  Be careful  not  to drop  or  spill  things  that  will 
burn  onto 
a hot engine. 
I 
Before  closing  the  hood,  be  sure  all the  filler caps  are  on properly.  Then 
just  pull  the hood  down  and close it  firmly. 
ENGINE  OIL 
If the  “Low  Oil Level”  light on  the  instrument  panel  comes on, it means 
you  need  to  check your engine  oil  level  right away.  You  should check your 
engine  oil 
level regularly;  the light 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. c1 
u   
     
        
        Page 283 of 386

Downloaded from www.Manualslib.com manuals search engine r REARAXLE 
1 
When  to  Check and Change  Lubricant: 
Refer  to  the  Maintenance  Schedule  to  determine how often  to check  the 
lubricant  and  when to change it.  See  “Periodic  Maintenance  Inspections” 
in  the  Index. 
How to  Check  Lubricant: 
If the  level  is  below  the  bottom of the filler  plug hole,  you’ll  need  to  add 
some  lubricant.  Add enough  lubricant  to raise  the level  to  the  bottom  of 
What  to  Use: 
~ the filler plug  hole. 
Standard  Differential 
Use  Axle  Lubricant  (GM Part 
No. 1052271)  or SAE 8OW-90 GL-5 gear 
lubricant. 
Limited-Slip  Differential 
To add  lubricant  when the level  is  low,  use Axle  Lubricant (GM Part No. 
1052271)  or SAE 8OW-90 GL-5  gear  lubricant. To completely refill  after 
draining,  add 
4 ounces (1 18 ml) of Limited-Slip  Differential  Lubricant 
Additive  (GM  Part 
No. 1052358).  Then fill to  the  bottom  of the  filler  plug 
hole  with  Axle  Lubricant  (GM Part 
No. 1052271)  or  SAE 8OW-90  GL-5 
~ gear  lubricant. 
ENGINE COOLANT 
The  proper  coolant for your Cadillac  will: 
Give freezing  protection down to  -34°F  (-37’ C) . 
_- Give boiling  protection up  to  262°F  (128°C) . 
0 Protect against rust  and  corrosion. 
__ 0 Help  keep  the  proper  engine  temperature. 
Let the warning lights  work as they should. 
What  to  Use: 
Use  a mixture of one-half  clean water  (preferably  distilled) and one-half 
antifreeze  that  meets 
“GM Specification 1825-M,”  which  won’t damage 
269   
     
        
        Page 285 of 386
Downloaded from www.Manualslib.com manuals search engine _q Adding Coolant 
To Check Coolant: 
When  your engine  is 
cold,  the coolant  level 
should  be  at “ADD,” 
or  a little  higher. 
When  your engine  is 
warm,  the 
level should 
be  up  to 
“FULL,” or  a 
little  higher. 
To Add Coolant: If you need  more  coolant,  add  the  proper mix at  the 
coolant  recoverv  tank. -. 
Turning  the  radiator  pressure  cap  when the engine  and  radiator 
are  hot  can  allow steam  and  scalding  liquids  to blow  out  and 
burn  you  badly.  With the coolant  recovery  tank, you  will  almost 
never have to  add coolant  at the  radiator.  Never turn  the 
radiator  pressure  cap 
-- even  a  little -- when  the engine  and 
radiator  are  hot. 
I 
~ 
Add  coolant  mix at the  recovery  tank, but  be  careful  not to spill  it. 
I A CAUTION: 
You can be burned  if  you spill  coolant  on hot engine  parts. 
Coolant  contains  ethylene glycol, and  it will burn  if the  engine 
parts  are  enough.  Don’t  spill  coolant on a  hot  engine. 
’   
     
        
        Page 328 of 386

Downloaded from www.Manualslib.com manuals search engine 1 
75:lO 15, 
A 
I 
- 
INSTRUMENT PANEL (I/P) FUSE BLOCK 
-5 - NOT USED 6 - T/SIG (15 AMP) - PARWNEUTRALAND BACKUP LAMP  SWITCH 
7 - ABS (IO AMP) - ELECTRIC  TURN  FLASHER 
- ELECTRONIC  BRAKE  CNTRL.  MOD. 
iEBCM) 
8 
- ,RAPWPR (25 AMP) - RETAINED  ACCESSORY PWR. (RAP) 9 - RADIO (IO AMP) - RADIO  RECEIVER 10 - WIPER (25 AMP) - WINDSHIELD  WIPER/WASHER 11 - I/P INDC /TELLTAIL (10 AMP) - DIAGNOSTIC  ENERGY  RESERVE 
- LOW COOLANT  MOD. 
MOD.  (DERM) - INSTRUMENT 
PANEL  CLUSTER 
INDICATORS 
12 - NOT  USED 13 - CHIME (10 AMP) - CHIME  MOD. 
SPEED  SENSOR  BUFFER  MOD. 
TORQUE  CONVERTER  CLUTCH 
AUTO.  DAY/NIGHT  MIRROR 
FCC) 
DISABLE  RELAY 
REAR  DEFOGGER  RELAY 
CCM (IO AMP) CENTRAL  CNTRL.  MOD.  (CCM) 
THROlTLE  POSITION (TP)  SENSOR 
MOD. ., 
15 - AIR  BAG (IO AMP) 
16 - CRUISE (10 AMP) 
- ELECTRONIC  LEVEL  CNTRL.  (ELC) 
- DUAL  POLE  ARMING  SENSOR 
- GENERATOR - CRUISE  CNTRL. 17 - HTD  ST (10 AMP) - DRIVER'S  MEMORY  SEAT - DRIVER  HEATED SEAT - PASSENGER  HEATED  SEAT 
- CENTRAL  CNTRL.  MOD.  (CCM) - INSTRUMENT  CLUSTER: 
18 - CCM  IGN (10 AMP) 
THEFT  DETERRENT  RECEIVER REMOTE  KEYLESS  ENTRY/UNVERAL RAP  PWR (10 AMP) RETAINED  ACCESSORY  PWR. 
RAP) HVAC  (A0  AMP) ~  ~ HVAC SOLENOID  MOD. 
INSTRUMENT  CLUSTER 
HVAC  CNTRL.  HEAD 
RAP  BATT (25 AMP) 
WIPER  RELAY  RETAINED  ACCESSORY  PWR.  (RAP) HVAC (25 AMP 
TRK  REL 
(IO AMP) TRUNK  LID  RELEASE  SW. STARTER (10 AMP) STARTER ENABLE REALY 
DIAGNOSTIC  ENERGY  RESERVE 
MIR  DEFG (IO AMP) MOD.  (DERM) 
SIDE  VIEW  MIRROR  DEFOGGERS 
PWR  ANT (20 AMP) TRUNK  LAMP 
\, 
HVAC  PWR.  M&D. 
PWR.  ANTENNA 
D/INT LPS (15 AMP) DELAYED  INTERIOR  LIGHTS  (DIL) FRT  CIG (10 AMP) FRONT  CIGAR  LIGHTER RR CIG (20 AMP) REAR  CIGAR  LIGHTERS HVAC (10 AMP) 
ABS 
(25 AMP) HVAC  CNTRL.  ASSEMBLY 
TRACTION  CNTRL.  MOD.  ELECTRONIC  BRAKE  AND/ 
NOT  USED 
CLUSTER (IO AMP) CHIME  MOD. 
INSTRUMENTCLUSTER: 
LOW  ENGINE  OIL  MOD. 
HEADLIGHT  SW. 
RADIO RECEIVER CCM (1 0 AMP) CENTRAL  CNTRL.  MOD.  (CCM) PWR LK (10 AMP) PWR.  DOOR  LOCKS  PWR.  MIRRORS 
TRK  PDWN (15 AMP) PWR.  LUMBAR  SEATS 
TRUNK  LID  PULL-DOWN  UNIT 
STOP  LPS (20 AMP) BRAKE  TRANSMISSION  SHIFT 
INTERLOCK  IBTSIVSTOP  LIGHT 
BRAKESW. 
' '. PWR RECL 115 AMPI DRIVER-SCT RECLIfiE  SW. 
PASSENGER SEAT RECLINE  SW. PWR  LUMB 120 AMP) PWR. LUMBARSEAT  MOTOR CNTRL MOD. HTD  ST 15 AMP) 
SEAT  CNTRL.  MOD.  RELAY CORNR  LP (IO AMP) INSTRUMENT  CLUSTER: 
RADIO  CNTRL.  HEAD 
CORNERING  LIGHTS 
INT  DIM (IO AMP) HEADLIGHT  SWITCH  DRIVER4  AND  PASSENGER  HEATEL - INTERIOR  LIGHTS - DIMMING 43 - RR T/LPS (IO AMP). - REATTAIL  LIGHTS - REAR  SIDE  MARKER  LIGHTS - LICENSE  LAMP 
- HAZARD  WARNING  FLASHER 44 - HZRD LP (20 AMP) 
45- PWR  LK 20AMP) - PWR. Doh  LOCK  RELAY 
- RETAlNED  ACCESSh  PWR.  (RAP) 
C/B 1 - NOT  USED CIB 2 - RAP  PWR (30 AMP 
RELAY CIS 3 - PWR ST (25 AMP) - DRIVERS PWR.  SEAT SW. - PASSENGER  PWR.  SEAT  SW. - MEMORY  SEAT  MOD. 
- REAR DEFOGGER  REALY C/B 4 - RR DEFG (30 AMP) 
C/B 
5 - HDLP (30 AMP) - HEADLIGHT  RELAY - DAMIME RUNNING  LIGHTS  (DRL) 
314