From another forum:
The following procedure will allow you to check your transmission fluid level from inside the vehicle, and it is also more accurate than checking via the dipstick.
To enter the transmission oil level display mode, press the UP
arrow buttons simultaneously on the mode selector. A two-minute countdown begins when the following conditions are met:
- Engine is at idle
- Transmission sump oil is at operating temperature
- Transmission output shaft has stopped
- Transmission is in neutral
- Oil level sensor is functioning properly
The display should show *8 and then count down to 0. Note that it will take two minutes to complete this countdown. During the countdown, the display flashes and a count (8,7,6,5,4,3,2,1) occurs reducing by one digit every 15 seconds.
Failure to meet any of the above conditions will stop the two minute countdown. The shift selector will then display one of the following Oil Level Codes
to show the reason for the countdown interruption. The countdown will resume where it stopped once all conditions have been met. Shift selectors with single digit display will display the codes one digit at a time. Shift selectors with two digit displays will display the codes two digits at a time.
OIL LEVEL CODECODE DESCRIPTION
oL 0X Setting time too shortoL 50 Engine RPM too low oL 59Engine RPM too high oL 65Neutral not selected oL 70Sump fluid temperature too low oL 79Sump fluid temperature too high oL 89Output shaft rotation detected oL 95 Oil level sensor failed
After the two minute countdown, the shift selector displays the oil level data as in the following examples:
OIL LEVEL READINGSMEANING OF READINGS
o, L, o, K Fluid level is correct o, L, L, o, 1 or OL, LO, 01 Fluid level is 1 quart low o, L, H, 1 or OL, HI, 01 Fluid level is 1 quart high
To exit the oil level display mode, press the NEUTRAL
button or simultaneously press the UP