When O D off Light on?

When the O/D off light is on this means the overdrive gear is turned off and the torque converter will not lock up. This setting will help if you are towing something behind the vehicle.

Should the OD off light be on?

Having the overdrive off is fine if you are driving in hilly areas, but if you are on the highway, it is best to have it on because you will get better gas mileage. ... If your overdrive light is flashing or blinking, you are not going to be able to correct the issue by pushing a button.

Is it bad to drive with overdrive off?

Is It Bad to Drive With Overdrive Off? It's not bad to drive with overdrive off and does no harm to the transmission. However, you will get worse fuel economy and have more noise at high speeds. There's really no reason to leave it off unless you need to ascend or descend a steep hill.