On a 1997 Ford Expedition :
It may not shift into overdrive until you are travelling around 50 MPH (80 Km/H) and you will see the RPM on the tachometer drop.
* If the overdrive has been SWITCHED OFF using the switch on the end
of the gearshift lever, then OFF will light up near the end of the gearshift lever.
Overdrive ON is the normal position But if you are towing something or driving in hilly country where the transmission is constantly shifting from overdrive to drive , then you want to switch the overdrive off
Normally the overdrive is allowed , so the overdrive OFF light does not light up When the overdrive is switched off , the overdrive OFF light will light up to let you know that the overdrive has been switched off
A malfunction has been detected - get it checked out
According to the 2003 Ford Expedition owners manual : If your Overdrive Off light is flashing : " have your vehicle serviced as soon as possible otherwise damage to your transmission can occur " ( it might just be a sensor )
Only if you want to shut off the overdrive feature , because overdrive is the normally allowed position
In most cases drive with overdrive especially if maintaining over 45 mph. Take out of overdrive if on slippery pavement
Anytime you don't want the transmission to shift into overdrive * if you are towing something , or if you are driving in hilly country where the transmission is constantly shifting between drive and overdrive , you can use the button on the end of the gearshift lever on your 1998 Ford Expedition to shut off the overdrive ( the word OFF will light up on the end of your gearshift lever )
I have a 99. how do you turn OD off, with wiper control stick button? Is so, could be a fuse or switch.
It means you turned it off, usually a little button on the end of the shifter.
Your overdrive on / off button is on the end of your gear selector lever ( P R N etc. )
The overdrive is "ON" when the light is "OFF". Notice the light for the overdrive has a slash through it.
Overdrive is the normally allowed position It won't shift into overdrive until the speed is faster anyway ( on my Ford EXPLORER I have to be doing around 50 miles per hour ) If you are towing something or driving in hilly country where the transmission is constantly down shifting then you want to turn the overdrive off and the OFF light will appear in the end of your gear selector lever