Chances are that the overdrive solenoid (forgive my spelling) inside the transmission needs replaced. Not a job for the light-hearted.
A 1991 Ford Escort will not shift into overdrive if the overdrive switch has been turned off or the transmission is failing. A mechanic or local dealership can diagnose and repair both issues.
check dimmer switch for headlights
probably because your dimmer switch is bad or a relay
If the vehicle does not have an overdrive, then realistically, you can not.
does the 2010 hyundai santa fe have an on off overdrive switch where is it located
The Z24 has overdrive, the base models are 3 speed autos
Column shift you can't. Need to replace the whole overdrive switch. Floor Shift, the bezel just pops off and you can access it.
If the overdrive switch is turned off then the car will not go into overdrive. As it is not in overdrive, then it will not downshift out of overdrive as it normally would. It also will not shift to 3rd gear above a certain factory preset speed. Turn th overdrive on and see if it operates normally.
There is no overdrive, per se, but a mode switch called "Power Mode" that doubles as an overdrive, allowing more RPMs per gear.
The brake light switch is broken or out of adjustment. The brake light switch is attached to the brake pedal lever above the brake pedal pad.
There is no separate switch for the overdrive, simply put the gear selector in the overdrive position. It looks like a D inside a square. Not all Chevy Celebrities have the overdrive feature, it was an extra cost option.
Start with checking the fuses.