Skip the auto shop - Our mechanics make house calls

Q: What does the malfunction indicator Warning Light mean?

asked by on

What does the malfunction indicator Warning Light mean?

The malfunction indicator Warning Light is located on your instrument panel. When this light illuminates, your vehicle has detected an issue with the emissions system, and you should have your car serviced as soon as possible. Tip The malfunction indicator Warning Light briefly illuminates when the car is first turned on. The light is only a problem if it stays lit for an extended period.

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!
  1. Home
  2. Questions
  3. What does the malfunction indicator Warning Light mean?

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: Vehicle won't pass emissions test

Emissions tests analyze three main exhaust gas components: hydrocarbons (HC), carbon monoxide (CO), carbon dioxide (CO2). In some places, they also look at oxides of nitrogen (NOx). Excessive CO is the result of a rich fuel mixture and can only...

Q: Car jerks and no acceleration. Slow pick up

Hey there. This may be related to a dirty or failing mass air flow sensor. The mass air flow sensor monitors air intake as it is mixed with fuel prior to being injected into the motor. When this fails, this...

Q: How do I view the fuel used?

The fuel used displays how much fuel has been used since the last feature reset. This can help you keep track of how much gas you use on a trip. To view and reset this feature, follow these steps: 1....

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...