I have a fully loaded TRD SR5 Tundra with 40,000 miles. Within the last 1,000 miles the OD Overdrive is turning on and off randomly. Even when the OD light is on it may be on or it may be off. I have to monitor RPM's to determine if it is actually on or off. Many times I have to pull over and put it in park to try and turn it on.
Does anyone know why this is happening? I'm afraid to take it to Toyota and incur a big charge to fix. It seems electronic to me, but what do I know.
Please email me at Hedonic1@aol.com with thoughts.