Q: Malfunction Transmission light appeared on dashboard

asked by on

When I accelerate and about to exceed 40 mph, my "Malfunction Transmission" light has appeared. What could be the cause of it?

My car has 110000 miles.
My car has an automatic transmission.

Automatic transmissions can be tricky. Luckily, as odd as it seems, the fact your vehicle is setting a warning light is a good thing. This allow you to run a diagnostic scan for trouble codes, and will help narrow down what sensor is giving the alarm.

Since a sensor has been triggered, the problem is something that is being monitored and hopefully wont be a nightmare to diagnose and repair. Scans can be done by one of our mobile technicians, or at your local auto part store.

Unfortunately transmission problems are regarded as being serious, and this will need attention ASAP. There is a chance that a sensor or small electrical component is the issue. Otherwise the transmission may have a more serious problem. The scan will likely have all the information you need to proceed.

If you decide to get this looked at, consider YourMechanic, as one of our mobile technicians can come to your home or office to diagnose the warning light firsthand for an accurate repair.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Malfunction Transmission light appeared on dashboard

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Passenger seat belt system failed - 2008 BMW 528xi

The SRS system needs to be interrogated for faults. Faults in the supplemental restraint system (SRS) will effect the triggering logic of the airbags in the event of an accident so it is highly recommended that you get the system...

Q: Electronics don't work after jumpstart

Jumping a vehicle is a great way to receive instant power. On the other hand this can cause electrical issues if not done correctly. Multiple fuses can blow leaving you with a loss of power to many components in your...

Q: What would cause brand new O2 sensors to give codes 172, 173, 176, and 177, rich and lean conditions, both sides at the same time?

When it comes to across-the-board codes being set such as this, it is usually a result of something "upstream" creating the condition to set all these codes. For instance, it is rare for both O2 sensors to fail at exactly...

Related articles

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...