GMC SAVANA 1998 Owners Manual
Manufacturer: GMC, Model Year: 1998, Model line: SAVANA, Model: GMC SAVANA 1998Pages: 388, PDF Size: 20.04 MB
Page 131 of 388

If the  Light Is Flashing If the  Light Is On Steady 
The following  may  prevent  more serious damage to 
your vehicle: 
Reducing vehicle speed. 
Avoiding  hard  accelerations. 
Avoiding steep uphill  grades. 
If you are towing a  trailer, reduce  the amount  of 
cargo  being  hauled  as soon  as it is  possible. 
If the  light  stops flashing  and remains  on  steady,  see “If 
the Light Is On Steady” following. 
If  the  light  continues 
to flash, when it is safe to do so, 
stop the vehicle. Find a safe place  to park your  vehicle. 
Turn  the  key 
off, wait  at least 10 seconds  and  restart  the 
engine.  If 
the light remains  on steady,  see “If  the  Light 
Is On Steady” following.  If the  light  is  still  flashing, 
follow  the previous  steps,  and  drive the vehicle  to your 
dealer  or qualified service center for  service. You 
may  be  able to correct  the  emission  system 
malfunction  by considering  the following: 
Did  you  recently  put  fuel into your  vehicle? 
If 
so, reinstall  the  fuel  cap, making  sure to fully install 
the  cap.  The diagnostic  system  can  determine if 
the fuel 
cap  has  been  left  off  or improperly  installed. 
A loose  or 
missing  fuel  cap will  allow  fuel to evaporate  into the 
atmosphere. 
A few  driving  trips  with  the  cap properly 
installed  should  turn  the  light  off. 
Did  you  just drive  through  a deep puddle  of  water? 
If 
so, your  electrical system  may  be  wet. The condition 
will  usually  be  corrected  when  the  electrical system 
dries 
out. A few driving  trips  should  turn  the  light  off. 
Are  you low 
on fuel? 
As your  engine starts  to run  out of fuel,  your  engine  may 
not  run  as efficiently  as designed  since small amounts 
of 
air are sucked  into  the fuel line causing a  misfire. The 
system  can detect  this.  Adding  fuel  should  correct 
this 
condition. Make sure to  install  the fuel cap properly.  It 
will  take  a few  driving trips 
to turn  the  light  off. 
2-59 
ProCarManuals.com 
Page 132 of 388

Have you recently changed brands  of fuel? 
If 
so, be  sure  to fuel your vehicle with quality fuel (see 
“Fuel”  in  the  Index). Poor fuel quality  will cause  your 
engine  not to run  as  efficiently as designed.  You may 
notice this 
as stalling after start-up, stalling  when  you 
put  the vehicle into  gear, misfiring, hesitation  on 
acceleration  or stumbling  on acceleration.  (These 
conditions 
may go  away  once  the  engine  is warmed  up.) 
This will  be detected  by the system  and cause the light 
to turn on. 
If you experience  one  or more of these  conditions, 
change  the fuel brand 
you use. It will  require  at least one 
full tank  of 
the proper fuel to turn the light off. 
If none  of the  above steps have  made the light  turn off, 
have  your dealer  or qualified service center  check 
the 
vehicle. Your dealer  has the proper test equipment  and 
diagnostic  tools to 
fix any mechanical  or electrical 
problems 
that may  have developed. 
Oil Pressure Gage 
The oil pressure gage 
shows  the  engine  oil 
pressure  in psi (pounds per 
square  inch) when 
the 
engine  is running. Canadian 
vehicles indicate pressure 
in kPa (kilopascals). 
OIL -1 
Oil  pressure  may  vary  with  engine speed, outside 
temperature 
and oil viscosity,  but readings above  the 
low  pressure  zone indicate the  normal operating range. 
A reading in the  low  pressure  zone may be caused  by a 
dangerously  low  oil level or other problem causing  low 
oil  pressure.  Check  your  oil as soon  as possible. 
2-60 
ProCarManuals.com 
Page 133 of 388

- 
UTION: 
- 
Don’t  keep driving if the  oil pressure is low. If 
you  do,  your engine  can become so hot that  it 
catches  fire. You 
or others  could be burned. 
Check  your oil 
as soon as possible  and have your 
vehicle  serviced. 
[ NOTICE: 
I I 
Damage  to your engine from neglected  oil 
problems  can be costly  and is  not  covered  by 
your warranty. 
Security Light 
SECURITY 
This  light  will  come on 
briefly  when  you  turn  the  ignition  key 
to START. 
The  light  will  stay 
on until  the  engine starts.  If  the light 
flashes,  the  Passlock@System  has  entered a tamper 
mode.  If  the  vehicle fails to start, 
see “Passlock”  in 
the  Index. 
If the  light  comes on continuously  while driving  and 
stays 
on, there  may be a problem  with  the  Passlock 
System.  Your vehicle  will 
not be protected  by  Passlock, 
and 
you should see your GM dealer. 
2-61 
ProCarManuals.com 
Page 134 of 388

Daytime  Running  Lamps  Indicator  Light 
You may  have  this  light  on 
the  instrument  panel.  It  will 
light  whenever  the 
DRL are 
on. It is  also a reminder to 
turn on your  headlamps 
when  driving  at  night. 
Check  Gages  Light 
CHECK 
GAGES 
The CHECK GAGES light 
will  come 
on briefly  when 
you  are starting  the engine. 
If the  light  comes on and  stays  on  while you are driving, 
check  your  coolant  temperature  and  engine 
oil pressure 
gages 
to see if they are in  the  warning  zones. 
2-62 
ProCarManuals.com 
Page 135 of 388

Fuel Gage 
UNLEADED 
FUEL ONLY 
The  fuel gage, when the 
ignition  is  on, tells you 
about  how  much fuel you 
have left in your  tank. 
The  gage  will first indicate  EMPTY 
(E) before you 
are 
out of fuel,  and  you  should get  more fuel as  soon 
as  possible.  Listed 
are four situations 
you may  experience  with your 
fuel gage: 
At  the  gas station, the fuel pump shuts  off  before the 
gage reads 
FULL (F). 
0 It  takes a little  more  or less  fuel to fill up than  the 
fuel gage indicated.  For example,  the gage  may  have 
indicated  the  tank  was  half  full, but it actually  took  a 
little  more.or  less  than  half  the  tank’s  capacity to fill 
the  tank. 
The gage  moves  a little  when you turn a corner or 
speed  up. 
0 The  gage  doesn’t go back to EMPTY (E) when you 
turn off the  ignition. 
None  of these indicate 
a problem  with  the  fuel gage. 
2-63 
ProCarManuals.com 
Page 136 of 388

& NOTES 
2-64 
ProCarManuals.com 
Page 137 of 388

Sectici 3 Comfort  Controls  and Audio Systems 
In this  section, you’ll  find  out how  to operate  the comfort  control  and audio  systems  offered with  your  vehicle. Be 
sure  to read  about  the  particular  systems supplied  with your vehicle. 
3-2  3-2 
3-3 
3-4  3-5 
3-6 
3-6 
3 
-6 
3-7 
3-7 
3-7 
3 -7 
Comfort  Controls 
Heater  Controls 
Heater/Air  Conditioning  Controls 
Rear Heater (Without  Air Conditioning) 
Rear  Air Conditioning  and  Rear  Heater 
Air  Conditioning 
Heating 
Ventilation  Tips 
Audio  Systems 
Setting  the  Clock  for Systems  without 
Automatic  Tone Control 
Setting the Clock  for  Systems with 
Automatic  Tone Control 
AM-FM  Stereo  3-9 
3-11 
3-  16 
3-20 
3-2  1 
3-23  3-24 
3  -25 
3-26 
3-26  3-27  AM-FM 
Stereo with Cassette  Tape Player 
(If  Equipped) 
AM-FM  Stereo with Cassette  Tape and 
Automatic  Tone Control  (If Equipped) 
AM-FM  Stereo with Compact Disc  Player 
and  Automatic  Tone Control  (If Equipped) 
Remote Compact Disc  Player (If Equipped) 
Theft-Deterrent  Feature  (If Equipped) 
Understanding  Radio Reception 
Tips About  Your Audio System 
Care  of  Your  Cassette  Tape Player 
Care 
of Your  Compact  Discs 
Care 
of Your  Compact Disc Player 
Power Antenna Mast  Care 
3-1 
ProCarManuals.com 
Page 138 of 388

Comfort  Controls Fan Knob 
This section  tells  you  how to make  your  air system 
work  for you.  Your  comfort  control  system  uses 
ozone-friendly 
R- 134a  refrigerant. 
With  these  systems,  you  can  control  the  heating,  cooling  and  ventilation 
in your  van.  Your vehicle  also 
has  a  flow-through  ventilation  system  described  later 
in  this  section. 
Heater Controls 
If your  vehicle  does not  have  air conditioning,  your 
heater  controls  will  look  like 
this. 
The knob on the left side of  the  heating  system  control 
panel  controls  the fan  speed.  The  knob  has  four speed 
positions. 
To increase  airflow,  move  the  knob  toward 
HI. To  decrease  airflow,  move it toward LO. To  turn  the 
fan  off,  move  the  mode  knob on the  far right 
to OFF. 
Temperature  Knob 
The  middle  knob  on  the  control  panel  lets  you  select  the 
relative  temperature  of  the  air  flowing  into 
the passenger  area 
of  your  vehicle.  This  knob  will  allow 
you to  adjust  the 
relative  air  temperature  independently 
of the  function  knob 
setting.  Move  the  knob  toward  the  red  area  for  warmer  air. 
Move  the  knob  toward  the  blue  area  for  cooler  air. 
Mode  Knob 
The  right  knob  changes  the  heater  setting. 
/.I VENT This setting  directs  air through  the 
instrument  panel  vents. 
+H BI-LEVEL: Use  this  setting to divide  airflow 
between  the  heater  floor  vents  and  instrument  panel  vents. 
+fl HEAT This  setting  directs  air  through  the  heater 
floor vents. This setting  is useful for cold  weather. 
=+a 
+e 
0 
3-2 
ProCarManuals.com 
Page 139 of 388

w. 
?# HEAT/DEFROST Use this setting  to divide 
airflow  between  the  heater floor vents  and  windshield. 
DEFROST This setting directs  air through the 
windshield  defroster vents. This setting  is  useful  when 
you have  fog  or  ice on the  windshield. 
Heater/Air  Conditioning  Controls 
If your  vehicle  has air conditioning,  your heatedair 
conditioning controls  will  look like this. 
Before  using  your  vehicle’s  air conditioning, open 
the 
windows to clear the  vehicle of hot  air. 
Fan Knob 
The  knob on the  left side of  the  heating  system  control 
panel  controls  the  fan speed. The knob  has  four speed 
positions.  To  increase  airflow,  move the  knob  toward 
HI. To decrease  airflow,  move  it toward LO. To turn  the 
fan  off,  move  the  mode  knob on 
the far right  to OFF. 
Temperature Knob 
The middle  knob on the control  panel  lets  you  select the 
relative  temperature 
of the  air flowing into  the  passenger 
area  of  your  vehicle.  This knob  will  allow 
you to adjust 
the relative  air  temperature  independently  of  the 
function  knob  setting.  Move the knob  toward  the  red 
area for  warmer  air.  Move  the 
knob toward the blue area 
for cooler  air. 
Mode Knob 
The right  knob  on the control  panel  changes the 
heatedair  conditioning  setting. 
MAX A/C: Move the right knob  to MAX A/C for 
maximum cooling.  This setting  puts  the  system in the 
recirculation  mode  and helps  to maximize  your  air 
conditioner’s  performance  and  your  vehicle’s 
fuel 
economy.  This setting  also cools  the air the  fastest.  After 
the vehicle’s  interior  reaches a comfortable  temperature, 
move  the  knob to the  right  to place the air conditioning 
system  in  the 
A/C mode. 
ProCarManuals.com 
Page 140 of 388

A/C: Use for normal  cooling  on  hot  days.  This setting 
cools 
outside air  and  directs it  through  the  instrument 
panel  outlets. 
’’ BI-LEVEL A/C: Use  this  setting  to divide aifflow 
between  the  heater  floor vents and  instrument  panel 
vents.  The air conditioning compressor  may operate  in 
this  setting  to cool  the air. 
*a 
/.I VENT: This  setting  directs  air through  the 
instrument  panel  vents. 
+’ HEAT This setting directs air  through  the  heater 
floor  vents.  This setting  is useful  for  cold  weather. 
+# HEATDEFROST: Use  this  setting  to  divide 
airflow  between  the heater  floor vents  and  windshield. 
+a 
0 
w. 
DEFROST: This setting directs air  through  the 
windshield  defroster vents. This setting  is  useful  when 
you  have  fog  or  ice on the  windshield. 
Rear  Heater  (Without  Air  Conditioning) 
If you have  a  rear heater  (without  rear  air  conditioning), 
the  control  switch 
is located on the  instrument  panel. 
To increase  and  decrease the  flow of heated  air  to the 
rear floor  vents,  move  the  switch marked 
REAR HEAT 
to  the  blower  speed  you  want. 
The  knob  has  three  speed  positions.  To increase  the  flow 
of  heated  air,  move  the  switch  toward 
HIGH. To turn  the 
fan  off,  move  the  switch 
to OFF. 
3-4 
ProCarManuals.com