1999 PONTIAC GRAND PRIX Owners Manual

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2-85
If You Can't See the HUD Image When
the Ignition Is On

Is anything covering the HUD unit?

Is the HUD dimmer setting bright enough?

Is the HUD image adjusted to the proper height?

Still no HUD image? Check the fuse in the
instrument panel fuse block. See ªFuses and Circuit
Breakersº in the Index.
If the HUD Image Is Not Clear

Is the HUD image too bright?

Are the windshield and HUD lens clean?
The windshield is part of the HUD system. If you ever
have to have a new windshield, be sure to get one
designed for HUD. If you don't, the HUD image may
look blurred and out of focus.Power Drop Feature
The vehicle is equipped with auxiliary power leads.
These leads can be used to power aftermarket electrical
equipment added to the vehicle. They are located on the
passenger's side of the vehicle, below the glove box. For
additional information on accessing these leads and
electrical hookup, please refer to the service manual.

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Driver Information Center (DIC) (If Equipped)
The Driver Information Center (DIC) gives you important safety and maintenance facts. When you turn the ignition
on, all of the Driver Information Center lights light up for a few seconds. Then it goes to work.

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2-87 Functions
: If one of the doors is ajar, a light will appear
next to that door on the vehicle outline.
CHANGE OIL SOON: This light will appear when the
system predicts that the oil's remaining useful life is
almost up. The system predicts remaining oil life using
inputs from length of drives, coolant temperature,
engine rpm and vehicle speed. It alerts you to change
the oil on a schedule consistent with the vehicle's
driving conditions.
After changing the oil, the system must be reset. With
the ignition key in ON but the engine off, fully push and
release the accelerator pedal slowly three times within
five seconds. If the CHANGE OIL SOON light flashes,
the system is resetting. Turn the ignition key to OFF,
then start the vehicle. If the CHANGE OIL SOON light
comes back on, the Oil Life Monitor has not reset.
Repeat the procedure.LOW: This light will come on when the ignition is
on and the fluid container is low.
AJAR: This light alerts you that the trunk is not
fully closed.
LOW TRAC: This light will come on when the
Traction Control System is limiting wheel spin. See
ªTrac Systemº or ªLow Traction Lightº in the Index.
TRAC OFF: This light lets you know that the Traction
Control System has been disabled and will not limit
wheel spin. See ªEnhanced Traction System Warning
Lightº or ªLow Traction Lightº in the Index.
TRAC switch: If the vehicle has the Traction Control
System, you will have a disable switch on the far right
side of the Driver Information Center. The Traction
Control System is automatically activated when you turn
the ignition on. This switch will activate/deactivate the
Traction Control System. If you need to disable the
system, such as when you are stuck and are rocking the
vehicle back and forth, push this switch. See ªStuck: In
Sand, Mud, Ice or Snowº in the Index.

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Trip Computer (If Equipped)
3100 and 3800 Engines
When you start the engine, the trip computer will display a mode. A lighted oval will appear to the left of the mode
currently being used.

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3800 Supercharged Engine
When you start the engine, the trip computer will display a mode. A lighted oval will appear to the left of the mode
currently being used.

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2-90 Control Buttons
The trip computer has three buttons that control its
functions.
ENG/MET: Press this button to change the display from
English to metric units or metric to English.
RESET: Press this button for two seconds to reset the
mode displayed.
MODE: Press this button to change the mode
being displayed.
Functions
PERFORMANCE SHIFT: This light comes on when
you press the performance shift button (located on the
console shift) to indicate that the vehicle is in
performance shifting mode.
See ªPerformance Shiftingº in the Index.
FUEL USED: Shows the total amount of fuel used
since you last reset this mode. The amount can be
displayed in gallons or liters.AVG ECON: Shows the average fuel economy since
you last reset this mode.
OIL LIFE: Shows a percentage of the oil's remaining
useful life. The system predicts remaining oil life using
inputs from length of drives, coolant temperature,
engine rpm and vehicle speed. Each time you get an oil
change, be sure to reset this function so that it will give
you an accurate percentage. See ªHow to Reset the Oil
Life Monitorº in the Index.
RANGE: Shows how much farther you can travel with
the fuel you have before refueling. When the range
displays L
, for 40 to 50 miles (64.36 to 80.45 km), the
display will flash the word LOW continuously and the
vehicle will chime three times. The range is calculated
from the average econ value times the fuel remaining in
the tank.
LOW: This light will come on when the ignition is
on and the fluid container is low.

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DOOR AJAR: If one of the doors is left ajar, a light
will appear next to that door on the vehicle outline.
BOOST GAGE: If you have the 3800 supercharged
engine, this gage will show the amount of boost the
engine is receiving.
TRUNK AJAR: If the trunk is not fully closed or open,
a light will outline the trunk area on the vehicle outline.
LOW TRAC: This light will come on when the
Traction Control System is limiting wheel spin. See
ªTraction Control Systemº or ªLow Traction Lightº in
the Index.TRAC/TCS OFF: This light lets you know that the
Traction Control System has been disabled and will not
limit wheel spin. See ªTraction Control System Warning
Lightº or ªLow Traction Lightº in the Index.
TRAC/TCS SWITCH: If the vehicle has the Traction
Control System, you will have a disable switch on the
far right side of the Trip Computer. The Traction
Control System is automatically activated when you turn
the ignition on. This switch will activate/deactivate the
Traction Control System. If you need to disable the
system, such as when you are stuck and are rocking the
vehicle back and forth, push this switch. See ªStuck: In
Sand, Mud, Ice or Snowº in the Index.

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-NOTES