2001 Kia Last night my over drive light came on and started flashing. The overdrive button/gear works fine but I can't get it to go off. Any idea what the problem might be?

There are a few potential causes for a 1999-2000 Ford F10 Holiday Rambler Vacationer not getting into gear. Here are a few things you can try to troubleshoot the problem:

1. Check the fluid level in the transmission. Low fluid levels can cause issues with shifting.
2. Inspect the shift linkage and make sure that it is properly connected and not damaged.
3. Check the transmission control module and wiring for any damage or lose connections.
4. Check for any error codes using a diagnostic scan tool. This may help to identify any issues with the transmission.
5. If the issue persists, it may be necessary to have the transmission inspected and repaired by a professional mechanic.

I hope this helps! If you have any additional questions or need further assistance, don't hesitate to ask.

usually on the end of the cruise control button(lever)..but look at transmission fluid levels add if low..overdrive is the first gear you loose when fluid levels drop..

Alot of people have the same problem, including me. Changing the transmission fluid is not going to help this problem. THe transmission filter is not something you change as much as you clean and reinstall, its just a metal screen. Call Kia and ask for an "OVERDRIVE SHIFT SOLENOID" they will need the last 8 digits of your VIN, vehicle identification number, to locate your part. I am in the process of changing mine. The part number should be something like 46313-39051. That number is for a 2001 Kia Optima, with the 4 cylinder. There are three shift solenoids bolted to the bottom of your transmission should. I'll let you know what the difficulty level when I am finished.

When was the last time you had the transmission filter and fluid changed? Sounds like the filter is clogged.

punch the buttons on a hill and you may find it shifts from overdrive to 3rd gear for more power in climbing situations.

My 2000 ford expedition XLT 4.2 L V8 overdrive lite is flashing as well took it in they said I need a new transmission so I are they can't put in a new overdrive thing my trucks rpm go high ones I'm over 45 it starts flashing and rpm go up but no power almost like it puts itself in neutral anyway I have to put in in drive 2 then switch back to drive to have power again as long as I stay under 42 miles an hour it drives fine over that speed overdrive light flashes and rpm are wakey lol I don't know anyone have a idea I don't want to put in a new transmission please help it's the only car my family has thank you

It turned out the ground wire to the battery was loose, Evidently, it loosened up when driving so mimiced the earlier symptoms because it connection was sporadic. I hooked up to a computer to verify after connection tightened and it came away with no errors or problems.

probably the vehcile speed sensor

There isn't anything wrong with your car. This is perfectly normal. I have a 2000 ES300 as well as other people that I know and it operates in the same way. Overdrive doesn't mean the same thing for every car or transmission. In our case overdrive is simply a reference to the top gear which is 4th gear. When you switch overdrive off(which is depressing the button causing the O/D OFF dash light to illuminate,) the highest gear becomes 3rd because you turned 4th gear or overdrive off. The application scenario for this is usually mountainous terrain where a lot of uphill driving makes it more feasible not to up shift into 4th gear while ascending and descending. It will not switch back to overdrive or 4th gear until you re-engage it by turning the overdrive back on or repressing the button. Again, when the O/D OFF dash light is illuminated, overdrive which is 4th gear is off and the highest gear will then become 3rd. It will never shift into 4th gear while this light is illuminated or overdrive is off. When you press the button and the O/D OFF dash light is NOT illuminated overdrive is on and therefore it will shift into 4th gear as usual. This applies to all 97-2001 ES300's and probably any other car you drive tat exhibits this same type of change when overdrive is turned off.