- A faulty overdrive solenoid
- A problem with the transmission control module (TCM)
- A low transmission fluid level
- A wiring issue
If the overdrive light is flashing, it is important to have the car inspected by a qualified mechanic as soon as possible to prevent further damage to the transmission.
Here are some additional things to check if the overdrive light is flashing:
- Check the transmission fluid level. If the fluid level is low, add the recommended type of fluid.
- Check the overdrive switch. The overdrive switch is usually located on the gearshift lever. Make sure that the switch is in the "On" position.
- Check the wiring harness. The wiring harness for the overdrive solenoid is located near the transmission. Check the wiring harness for any loose or damaged connections.
If you are not comfortable performing these checks, it is best to have the car inspected by a qualified mechanic.