Why the D (Drive) Light Flashes in a Honda

By | January 3, 2023

Why the D (Drive) Light Flashes in a Honda

A Honda with the D (Drive) light that keeps flashing means the onboard computer is seeing an issue with the transmission.

If you are driving when the D (Drive) starts flashing, it is best to find a safe spot to pull over and get the vehicle examined.

Why Does the D (Drive) Light Flash in a Honda?

Why Does the D (Drive) Light Flash in a Honda
When the D (Drive) light flashes and blinks in a Honda, it indicates a problem with the transmission.

The flashing D is a general warning that the onboard computer (ECM) is seeing an issue with the transmission that will need to be troubleshot.

It is best not to drive the Honda until it is known what the transmission problem is.

How to Fix a D (Drive) Light Flash in a Honda

The first thing to do is check the transmission fluid is low.
How to Fix a D (Drive) Light Flash in a Honda
If the fluid is low, it can cause transmission issues and the light to come on.

If the fluid is at the correct level, an OBDII scan tool will be needed to scan the error code.

The error code can then be looked up and will point to the component that has malfunctioned.

How to Find Out Why the D (Drive) Light is Flashing in a Honda

OBDII Port Scan Tool
An OBDII scan tool can read the codes stored in the onboard computer (ECM) that will display what is causing the issue.

There are many low-cost Honda OBDII scan tools that will show the failed component and what needs to be fixed.
Honda OBDII Port
The code scanners are easy to use by plugin into the Honda OBDII port located under the driver dashboard.

For example, if you scan for code and it displays a P0847, “Transmission Fluid Pressure Sensor/Switch “B” Circuit Low.”
How to Find Out Why the D (Drive) Light is Flashing in a Honda P0847
The transmission pressure sensor has very likely failed and needs to be replaced.

There are many components in transmissions and many codes which will point out the problem it is having.

Is it OK to Drive a Honda With D (Drive) Light Flashing and Blinking


When the D light is flashing and blinking in a Honda, it is best not to drive the vehicle.

There is an unknown problem with the transmissions that may leave the driver stranded.

While the problem may be a minor issue, it is possible that it is a major issue, and until known, it is best not to drive.

Summary
When the dashboard D (Drive) flashes and blinks in a Honda, there is an issue with the transmission.

Check the transmission fluid as it may be low and low fluid will cause problems.

To find the exact cause of the transmission malfunction, an OBDII scan tool will be needed to read the codes.

Once the code is known, it can be looked up and will point out the specific problem the vehicle is having.

Have you had an issue with a Honda with the dashboard D (Drive) flashing and blinking? Let us know your thoughts below.

Category: General Automotive Repair Honda

About Bob Thomas

Bob Thomas is an automotive mechanic with 30 plus years experience. He is a contributor to several publications and has written many articles on automotive maintenance and repairs. He also has created many auto repair videos on YouTube.

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