The Audi A4 is a performance inspired sedan with handling that's as sharp as its looks. To keep it in good shape, it's important to know when to take it in for maintenance and service. So, how do you know when to schedule an appointment?

Turns out your dashboard can help. Audi Ithaca put this Audi A4 dashboard light guide together to show drivers in Ithaca, Corning, and Binghamton what your car is trying to tell you.

Green Lights

When you see an icon lit up in green, it means that a feature is up and running. This can be something you switch on manually or a function that activates whenever you start the car. Some of the green lights you might see the most often are:

  • Start/Stop System - Whenever you start your car, you'll see a light that looks like the letter A inside a semicircle. This means your Start/Stop System is on and will turn your engine off to save gas when you come to a complete stop. You can turn this feature off by pressing a button on the dashboard.
  • Active Lane Assist - This helps you stay centered in your lane. You'll know it's on when you see a light that looks like lane markers with an arrow on each side.

Yellow Malfunction Alerts

A yellow light means that one of your vehicle's parts or systems has malfunctioned. Usually you can continue driving, but you should schedule service as soon as possible. A few of the yellow lights you should know are:

  • ABS - The letters ABS appear when there's a problem with your anti-lock braking system. It's safe to continue driving, but you should get these looked at right away.
  • Brake Wear - Brake pads wear down over time and eventually need to be replaced. You'll know your car needs new ones when you see a light that says BRAKE WEAR.
  • Check Engine - While its real name is the Malfunction Indicator Lamp, this light is usually called the check engine light, because it looks like your engine. It turns on when there's a problem with your emissions control system.
  • TPMS - The letters TPMS stand for your Tire Pressure Monitoring System. This is how your vehicle lets you know that one or more of your tires is low on air.

Red Warning Lights

A red light is used to let you know that there's a more urgent problem with your vehicle. Most of the time you'll have to pull over and call for roadside assistance. Some of the warning lights you should watch out for include:

  • Engine Oil Pressure - If you're overdue for an oil change, you'll see a light that looks like and old-fashioned oil can.
  • Transmission - Any problem with your transmission, whether it's low fluid or a faulty part, will be represented by a logo that looks like an exclamation mark inside a gear.
  • Cooling System - A light that looks like an old-fashioned thermometer means that you're low on coolant, and your engine is overheating.
  • Brake System - If the word BRAKE appears on your dashboard, pull over right away. This means that there's a problem with your main brake system.

Schedule Service

If you see any of the yellow or red lights mentioned on your dashboard, schedule service with Audi Ithaca. Our service center features a team of technicians who help drivers in Ithaca, Corning, and Binghamton with all sorts of maintenance and repairs. To learn more about this Audi A4 dashboard light guide, contact us or visit our service center. 

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Audi Ithaca

370 Elmira Road
Directions Ithaca, NY 14850

  • Sales: (607) 257-1515
  • Service: (607) 257-1515
  • Parts: (607) 257-1515


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