Skip the auto shop - Our mechanics make house calls

Q: What does it mean to have the O/D OFF light on

asked by on

I have a nissan march k11 i want to know wheter im on overdrive or not when the O/D OFF is indicated on the dash

My car has 115000 miles.
My car has an automatic transmission.

A: When the O/D off light is on this means the...

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. When the light is off then the vehicle overdrive is engaged and you have that extra gear and the torque converter will lock up at high steady speeds. The also increases your fuel mileage over having the O/D off.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: The radio will not power on. 2001 VW Passat

Hi there - first task is to check the fuse which powers the radio. If the fuse is good, check the operation of other devices powered by the same fuse for operation. If the rest work, then the problem is...

Q: Check engine light is on

Hi, thanks for writing in. When you have a mechanical component failure such as the radiator, the check engine light will typically illuminate until it is reset. However, if the check engine light came on after the service was completed,...

Q: transmission problems?

You will need to have the transmission diagnosed and tested for leaking valve body or solenoid for the OD (overdrive). A pressure test by a qualified transmission mechanic should detect what is leaking or bad in your situation. Most problems...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.