My 2001 Mazda pickup B series overdrive light blinks sometimes, Should I be concerned? It only 77,000 miles.
Anytime a light on the dash is flashing or on is a concern. Red means get it fixed ASAP, yellow, something need attention. The OD light means you have a trans fault code. Get it checked out sooner than later. Could be a sensor, solenoid or internal to the trans itself.