Q: What does the Service Engine Soon Light mean on the dash?

asked by on December 15, 2015

What does the Service Engine Soon Light mean on the dash?

The Service Engine Soon Light is tied into your car’s Emissions system, which includes a broad range of sensors and components in the engine, your Fuel system, and the Emissions system.

When you first crank the car, the Service Engine Soon Light should turn on briefly. It will go off after a few seconds. If it does not go off, it means there’s a malfunction code stored in the computer that needs to be checked by a professional. If it flashes while you’re driving, it means there has been a misfire and you need to pull over and turn the engine off. Start the engine again, and if the light does not flash (it’s off or stays solid), then you should drive the car and have it inspected. If it flashes again, you should tow the car.

Tip

During misfire situations, extreme heat can occur. Don’t park over flammable materials or a fire may start.

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

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

Reverse not working

If you are able to put the transmission in reverse, but it just wont go and acts like its in park/neutral, you could be having internal transmission issues. There are many components inside an automatic transmission but things like a...

check engine light will not go off

I would try to clear the code first by disconnecting the battery. Make sure you have the radio reset code. Leave the battery disconnected for at least 10 minutes. Reconnect the battery and enter radio code. The Check Engine Light...

Car making noises while driving

If your car is making a clunking or rumbling noise, I suspect that perhaps a wheel bearing or CV axle has failed. However, it would be hard to properly diagnose this issue without an in-person inspection. I would recommend having...

Related articles

A Buyer’s Guide to the 2012 BMW Z4
BMW’s BMW’s entry in the hardtop roadster segment, the Z4 delivers the ideal combination of performance, looks, and standard comfort features. This two seater is not only classically stylish and heavy on extras that aren’t, well, extra, it’s also the...
P2035 OBD-II Trouble Code: Exhaust Gas Temperature (EGT) Sensor Circuit Low Voltage Bank 2 Sensor 2
P2035 P2035 code definition Exhaust Gas Temperature (EGT) Sensor Circuit Low Voltage Bank 2 Sensor 2 Bank 2 refers to the back of cylinders without the number one cylinder. Sensor 2 would be the second EGT sensor from the motor...
A Buyer’s Guide to the 2012 Cadillac CTS
The The 2012 Cadillac CTS comes with high tech features and a large amount of standard equipment when compared to its Japanese and European counterparts. The CTS is available in wagon, coupe, and sedan models to fit the needs of...