overdrive cutoff light flashing after rpm surge going up hill. cannot get overdrive to work and light continues to flash

If the light is flashing, then there is a trouble code in the system that needs to be diagnosed at a shop/dealer to find the cause of the fault.

I don't know if you know this, some poeple don't. There is a button on the selector lever that will turn O/D on/off. Which light is flashing?

Auto Zone and several other national parts stores will check the codes for you for free:D

hello to my that it has just passed me and was the sensor of RG O ERG