range (PRND21). If the PRNDL displays only the char-
acters PRND21 (no boxes), have the system checked by
an authorized dealer.
16. Trip Odometer
The trip odometer shows individual trip mileage. To
toggle between the odometer and the trip odometer,
press the Odometer/Trip Odometer Button. To reset the
Trip Odometer, press and hold the button while in trip
mode, until the Trip Odometer resets.
Also the cluster will display, replacing the odometer,
vehicle warning messages such as: door ajar, low wash,
No-fuse, and the outside temperature on vehicles that are
not equipped with the Overhead Console with
Compass/Temperature Mini-Trip Computer. For addi-
tional information, refer to “Compass/Temperature
Mini-Trip Computer” in section 3.
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged,GASCAP will be displayed in the instrument cluster.
Tighten the fuel filler cap properly and press the odom-
eter reset button to turn the GASCAP message off. If the
problem continues, the message will appear the next time
the vehicle is started.
17. Odometer
The odometer shows the total distance the vehicle has
been driven.
U.S. federal regulations require that upon transfer of
vehicle ownership, the seller certify to the purchaser the
correct mileage that the vehicle has been driven. There-
fore, if the odometer reading is changed during repair or
replacement, be sure to keep a record of the reading
before and after the service so that the correct mileage can
be determined.
140 INSTRUMENT PANEL AND CONTROLS
•Do not change the thermostat for summer or winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory coolant performance, poor gas
mileage, and increased emissions.
Emission Related Components
Fuel System Hoses And Vapor/Vacuum Harnesses
When the vehicle is serviced for scheduled maintenance,
inspect surface of hoses and nylon tubing for evidence of
heat and mechanical damage. Hard and brittle rubber,
cracking, checking, tears, cuts, abrasions, and excessive
swelling suggest deterioration of the rubber. Particular
attention should be given to examining hose surfaces
nearest to high heat sources, such as the exhaust mani-
fold.
Insure nylon tubing in these areas has not melted or
collapsed.Inspect all hose clamps and couplings to make sure they
are secure and no leaks are present.
You are urged to use only the manufacturer’s specified
hoses and clamps, or their equivalent in material and
specification, in any fuel system servicing. It is manda-
tory to replace all clamps that have been loosened or
removed during service. Care should be taken in install-
ing new clamps to insure they are properly torqued.
Positive Crankcase Ventilation (PCV) Valve
Proper operation of the crankcase ventilation system
requires that the PCV valve be free of sticking or plug-
ging because of deposits. Deposits can accumulate in the
PCV valve and passage with increasing mileage. Have
the PCV valve, hoses, and passages checked for proper
operation at the intervals specified. If the valve is
plugged or sticking, replace with a new valve –Do not
MAINTAINING YOUR VEHICLE 315
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