
Downloaded from www.Manualslib.com manuals search engine reading may  change  as  your  driving  habits  change  (going  from city to 
highway  driving  may  increase the range  reading). 
If  the  range  display  shows 
“Lo”, you  should  stop for fuel  as  soon  as 
possible. 
Your  computer  needs  enough  data for 
the “RANGE” reading to work, 
however, 
so it  will  read  “Lo”  for  a  while  when  your  vehicle  is  brand  new 
(under 
25 miles).  Also,  it  may  show “Lo” for a while if your  battery  has 
been  disconnected. 
Driver  Information  Center 
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Your Driver  Information  Center (DIC) display  gives  you the status of 
many of your  vehicle  systems.  The  DIC is  used to display  driver  selectable -- 
information  and  warninghtatus  messages. 
If more  than  one  problem  is detected,  the  Driver  Information  Center will 
automatically  display  all current  messages. 
.L1 
Driver Information  Center  Control  Buttons 
INFORMATION Button 
Pressing  this  button  successively  will  display  the ENGINE RPM  (Digital 
Cluster  only), 
ENGINE COOLANT TEMP, BA?TERY VOLTAGE, 
AVG MPH,  MPG AVG, FUEL USED, OIL  LIFE LEFT, and TIMER.   

Downloaded from www.Manualslib.com manuals search engine CHECK COOLANT LEVEL - 04 
This  message  will  appear  when there is a low  level of engine  coolant. 
Have  the cooling  system  serviced 
by a  Cadillac  technician  as  soon  as 
possible. 
CHECK  FUEL  GAGE - 39 
This  message  will  appear  when  your  fuel  supply is less  than 4 gallam ad 
your  display  is  turned off. 
CHECK  OIL  LEVEL - 36 
This  message will appear  when  your  engine  oil  is  approximately  a  quart 
low.  If  this  message  is  displayed,  check  the oil  and  add  as  needed. 
CHANGE  OIL  SOON - 40 
This  message will appear  when  your  engine  oil  is  less  than 10 percent  or 
the  mileage  since  the last  oil  change  is  more  than 
6750 miles. 
CHANGE  ENGINE OIL - 82 
This  means  that the life  of  your  engine  oil  has  expired  and  it  should  be 
changed  immediately.  See  engine  oil  and  filter  recommendations  i\
n  the 
Maintenance  Schedule.  After  an 
oil change,  the Oil  Life  Index  must  be 
reset.  See  “Oil  Life Indicator” 
in the index  on  how to reset  it. 
CRUISE  ENGAGED - 43 
This  message  will appear  for  a few seconds  when you select  a  speed  to 
cruise  at. 
ENGINE  COOLANT  HOT - 44 
This  message  will  appear  when  your  engine  coolant  temperature  i\
s  over 
126” C (259°F). To avoid  added  strain  on  a  hot  engine,  turn  off  your 
Climate  Control  system  and  stop and allow  your  vehicle  to idle  until  it 
cools  down  or the  message  is  removed.  If  it  does  not  cool  down,  turn  off 
your  engine  and  have  it  serviced  before  driving  it  again.  Seve\
re  engine  damage  can  result  from  an  overheated  engine.  See  “Engine  Ove\
rheating’’ 
in  the  Index. 
ENGINE HOT - A/C COMPRESSOR OF” - 16 
This  message  will  appear when the Climate  Control  is in “Auto”  or 
Defrost  and  the engine  coolant 
is hotter  than the normal  operating 
temperature. 
To avoid  added  .strain on a  hot  engine  the air  conditioning 
L. -4 
144   

Downloaded from www.Manualslib.com manuals search engine from the various  components  to determine  proper  system operation.  If the 
computer  receives  an  incorrect  feedback  from  the system,  an  error code  will 
be set in  memory  and  a “SERVICE  RIDE CONTROE’  message will display 
on the  Driver  Information  Center.  If 
this message  should  appear,  have  your 
vehicle  serviced  at  your  Cadillac  dealer  at  your  earliest  conve\
nience. 
Oil Life  Indicator 
This  feature  lets you  know when to change  your  engine  oil.  It’s  based 
upon the engine oil temperatures  and  your  driving  patterns. 
To see 
the display, 
press  the  Information 
button  several  times  until 
“XXX OIL  LIFE 
LEFT”  appears. 
You’ll  see 
now much  oil  life  you  have  left, as a percentage. So, if you  see 
“95 OIL LIFE  LEFT,’’ for  example,  that  means  that  the way  you’re 
driving  your  car, 
95% of  your  current  oil  life  is  still left. 
The  Oil  Life  Indicator  may 
say to change  the oil  sooner  than  your 
maintenance  schedule. 
This can  happen if driving  conditions,  such  as 
short  trips  in  cold  weather,  cause  shorter  oil 
life. Always keep a written 
record  of the  mileage  and  date 
when you  last  changed  your  oil.  For  more 
information  on  when  to change  your  oil,  see 
the Cadillac  Maintenance 
Schedule  Booklet. 
If  you  see “CHANGE  OIL SOON,” 
it means  that  you have  less  than 10% 
of your oil life left,  and you  should  consider  changing  your  engine  oil. 
If  you  see “CHANGE  ENGINE 
OIL,” it means the oil life is gone 
and  you  should  change  the oil  right  away (certainly 
within 200 more 
miles 
[320 km]). 
148 
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The  system  probably will say. to change .& d between ,3000 miles 
(5000 km) and ,7500 *miles. (125OO km), but  it may even sary to change  it 
before 
3000 under  very  severe  conditions. It all  depends  on  .your  drivirrg 
pattims. 
If it’s  been 7500 miles (12500 km) it,always  says to’ change  the oil. 
There  are  two.thingslhe  system doesn?t do: 
0 It can’t  sense.  heavy  dust in the.places  where  you-  drive. If you -drive  in 
a  dusty  area, you should  change  your 
oil -every 3000 miles (5000 km) 
or 3 months  (whichever  comes  first), unless  the display  says  to  chinge 
it  even  sooner  than  that. 
I 
It doesn’t  check  how  much oil you  have, so you’ll  still  have  to check 
for  that.  To see  how,  see “Engine  Oil.’’ in the  Index. 
men You’ve  Changed the Oil 
When new oi€ is,put  in, you’ll  need .to reset.your.system.  To: do it,  display 
the  “OIL  LIFE 
.INDEX’’ by  pressing  the INFORMATION  button. Then 
press  -and;hold  the  RESET  buttons until the display  shows  “POO-OIL 
LIFE  LEFT.” 
Electronic Level .Control 
This  keeps  your  car level. 
The  ignition’has  to be 
“ON” for  the  level control  to work.  When,you turn 
the ignition off, you  may  hear  the level control  exhausting.  The,system 
consists 
of an  electronic  rear position  sensor,  a smalldectric  air 
compressor,  and  air adjustable 
SI kabsorbers  mounted on  the  rear of 
the vehicle. 
If the system  has  .a  slight  leak,  the air compressor  will run frequently  for a 
few  seconds each  time. 
i For a massive air leak,  the  air  ‘compressor  will  stay on for.  approximately 
7 minutes.  You should  see your.deal.er for service, but.you can keep 
driving  ,your  Cadillac. 
149   

Downloaded from www.Manualslib.com manuals search engine Overheated  Engine  Protection  Operating Mode 
Should  a low coolant  condition  exist  and the stop “STOP ENGINE 
ENGINE OVERHEATING” message  is  displayed,  an  overheat 
protection  mode  which alternates  firing  groups 
of four cylinders  helps 
prevent  engine  damage.  This  operating mode  allows  your  vehicle 
to be 
driven to a  safe  place  in  an  emergency.  You  may drive  up to 50 miles (80 
km).  Towing a trailer in the overheat  protection  mode  should  be  avoided. 
NOTICE: 
After  driving  in the  “Overheated  Engine  Protection  Operating 
Mode”,  to  avoid  engine  damage  allow  the  engine  to  cool  befo\
re 
attempting  any  repair. 
The  engine  oil  may  be  severely  degraded.  Change  the  oil  and 
reset  the  oil  life  indicator.  (See  “Engine  Oil,  When  to  Change” 
in  the  Index. 
If Steam Is Coming  From  Your  Engine 
220   

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You should also use the pFoper.y~msity , ~ -:. . -: :9il =--. :~ f0r~y0.u ,, ,.;: . 1. .-.. - , . vehicle, as shown in 
the following  chart: ,< .i, > <, -. . .-> : .. 
1 RECOMMENDED SAE VISCOSITY GRADE 
ENGINE OILS I 
HOT 
WEATHER 
COLD 
WEATHER 
- 
- 
SAE. 1OW-30 PREFERRED 
SAE 
5W-30 (-18"C) 
IF NEITHER.  SAE 5W-30 NOR  SAE 1OW-30 GRADE OILS ARE  AVAILABLE,  SAE.30 
GRADE MAY BE USED AT  TEMPER&FVJRES 
ABOVE 40 DEGREES F (4 DEGREES C). 
DO NOT  USE  SAE 1OW-40, SAE 2OW-50 OR ANY OTHER  GRADE OIL NOT  RECOMMENDED 
1 
As shown in the  chart, SAE 1OW-30 is best  for your  vehicle..  However, 
you  can  use 
SAE SW-30 if it's  going  to be colder than 60 F (16 C) 
before  your  next oil change.  When  it's very dd, you  should  use SAE 
5W-30. These  numbers  on anoilcontainer-show  its viscosity, or thickness. 
Do not  use  other  viscosity  oils,  such  as SAE. 1OW-40 or SAE 2OW-50. 
255   

Downloaded from www.Manualslib.com manuals search engine Engine Oil Additives 
k Don’t add anything  to your  oil.  Your  Cadillac  dealer is  ready  to advise if 
you  think  something  should  be  added. 
‘C When to Change  Engine  Oil 
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Your  Cadillac  has  an “Oil  Life  Indicator.”  This  feature will let you  know 
when  to change  your  oil 
-- usually  between 3,000 miles  (5 000 km) and 
7,500  miles  (12  500 
km) since  your  last  oil  change.  Under severe 
conditions,  the indicator  may  come  on before 
3,000 miles  (5 000 km). 
Never drive  your  vehicle  more than 7,500  miles  (12  500  km)  or 12 months 
without  an oil  change. 
The  system  won’t  detect dust in the  oil. 
So, if you  drive  in  a dusty  area, be 
sure to change  your oil every 3,000 miles  (5 000 km)  or sooner  if the 
“CHANGE  ENGINE  OK’ message  is  displayed.  Remember  to reset  the 
Oil  Life  Indicator  when the oil  has  been  changed.  For  more information, 
see “Oil  Life Indicator”  in the  Index. 
How to Reset  the  Oil  Life  Indicator 
r 
After  the oil  has  been changed,  display the  “OIL  LIFE  LEFT”  message 
by  pressing  the INFORMATION  button. Then press and hold  the 
RESET  button until the display  shows 
“loo”.. This resets  thle.,oil life index. 
The  message  will remain 
off until  the next  oil change  is  needed. The 
percentage  of oil  life  remaining  may be checked  at any  time  by pressing 
the  INFORMATION  button several  times  until the 
“OIL LE%  LEFT” 
message  appears. For more  information  on  the Oil  Life  Index  feature, see 
“Oil  Life  Index”  in  the Index. 
Engine  Coolant  Heater  (Engine Block Heater) 
An engine  coolant  heater can be a big  help  if  you  have to park  outside  in 
very cold weather, O°F (-18O C) or colder. If your  vehicle  has  this  option, 
see  “Engine  Coolant Heater”  in the  Index. 
257   

Downloaded from www.Manualslib.com manuals search engine What to Do with Used  Oil 
Did  you  know that used  engine  oil  contains  certain  elements that may  be 
unhealthy  for your  skin  and  could  even  cause  cancer?  Don’t  let  used  oil 
stay  on your  skin  for 
very long.  Clean  your  skin  and  nails  with  soap and 
water,  or a  good  hand  cleaner.  Wash or properly  throw  away clothing  or 
rags  containing  used  engine  oil.  (See  the manufacturer’s  warnings  about 
the  use  and  disposal  of oil  products.) 
Used 
oil can  be  a  real  threat  to  the environment. If you change  your  own 
oil,  be  sure  to  drain  all  free-flowing  oil  from  the filter  before  disposal. 
Don’t  ever  dispose 
of oil  by putting  it  in  the trash,  pouring  it  on  the 
ground,  into sewers,  or into  streams  or bodies 
of water.  Instead,  recycle  it 
by  taking  it  to a  place  that collects  used 
oil. If  you  have  a  problem 
properly  disposing  of your  used  oil,  ask  your  dealer, 
a service station or a 
local  recycling  center for help. 
AIR CLEANER 
Refer to the  Maintenance  Schedule  to determine  when to replace  the air 
filter. 
See  “Scheduled  Maintenance  Services”  in  the Index. 
See  “Air  Cleaner  Filter Replacement”  in the  Index. 
258