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What does o/d off light mean?

1 Answers

DianaDella

07/29/25 8:46pm

o/d-off warning light indicates that the overdrive of the car is in the off state. o/d is the overdrive. When the od switch is set to off, the transmission can only shift up to 3rd gear, that is, 4th gear has been restricted from shifting into. Conversely, when the gear lever is in the d position and the o/d switch is set to on, the transmission can shift up to 4th gear. The key role of o/d is to limit the gear of the transmission and prohibit the transmission from upshifting. This function can control the gear of the car within 1st, 2nd, and 3rd gears, while limiting the engine speed, making it convenient to overtake during driving. When the car needs to overtake, pressing the od button of the car will instantly drop the gear of the transmission to third gear, while the engine speed will rise, the torque will increase instantly, and the speed of the car will also be greatly improved. Using this function can reduce unnecessary switching of internal shift solenoids.

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