Kia Optima: Tachometer
Type A

Type B
The tachometer indicates the approximate number of engine revolutions per minute (rpm).
Use the tachometer to select the correct shift points and to prevent lugging and/or over-revving the engine.
The tachometer pointer may move slightly when the ignition switch is in ACC or ON position with the engine OFF. This movement is normal and will not affect the accuracy of the tachometer once the engine is running.
CAUTION
Do not operate the engine within the tachometer's RED ZONE. This may cause severe engine damage.
Speedometer
Fuel gaugeReplacement
1.
Disconnect the battery negative
cable from the battery and then wait for at least 30 seconds.
2.
Turn the steering wheel so that
the front wheels can face straight ...
Self Diagnosis
1.
Self-diagnosis process
2.
How to read self-diagnostic code
After the display panel flickers three times every 0.5 second, the corresponding
fault code flick ...
Replacement
1.
Disconnect the negative (-) battery
terminal.
2.
Using the screwdriver, remove
the side cover (A).
3.
Loosen the mounting screws and
th ...