
Dashboard Light Meanings and Services Needed
Dashboard Light Meanings and Services Needed
Auto-Mattox - Helping You Understand What Your Used Car Is Telling You
Dashboard lights are your vehicle's way of communicating with you. When one of these lights turns on, it's a warning sign that something needs your attention-sometimes urgently. At Auto-Mattox in Appomattox, VA, we want our customers to feel confident behind the wheel of their used vehicles, and that includes understanding what these dashboard lights mean and when it's time to take action.
Here's a breakdown of some of the most common dashboard warning lights you'll see, what they typically mean, and when you should schedule service.
1. Check Engine Light
What It Looks Like: A small icon shaped like an engine, sometimes with the word "Check" underneath.
When It Appears: This light may come on at start-up or while driving. It may stay solid or flash.
What It Means:
- A solid check engine light often means a minor issue, like a loose gas cap, oxygen sensor problem, or faulty spark plug.
- A flashing check engine light usually points to a more serious issue, like engine misfiring, which can cause long-term damage if ignored.
When to Seek Service:
If it's flashing, visit Auto-Mattox right away. If it's solid and the car seems to be running fine, schedule a diagnostic check soon. Ignoring this light can lead to expensive repairs down the road.


2. Oil/Fluid Pressure Light
What It Looks Like: A red oil can icon, sometimes with a drop coming out.
When It Appears: Often lights up when you first start the engine but should turn off within seconds. If it stays on while driving, it's a concern.
What It Means:
- Your engine may be low on oil.
- There could be a drop in oil pressure, which can lead to overheating and internal engine damage.
- You might be overdue for an oil change or have a leak.
When to Seek Service:
This light should never be ignored. Pull over safely and check your oil level. If it's low, add oil and get to Auto-Mattox for a full inspection. Driving with low oil pressure can ruin your engine.
3. Battery Warning Light
What It Looks Like: A red or yellow battery icon.
When It Appears: Typically turns on when starting your vehicle and should turn off shortly after. If it stays on, there's a problem.
What It Means:
- The battery isn't charging properly.
- Your alternator, voltage regulator, or battery itself could be failing.
- Loose cables or corrosion may be preventing proper power flow.
When to Seek Service:
If the battery light stays on while driving, your vehicle could lose power soon. It's best to bring your car in for testing before you're stuck with a dead battery-or worse, stranded.


4. Tire Pressure Monitoring System (TPMS) Light
What It Looks Like: A horseshoe-shaped symbol with an exclamation point in the center.
When It Appears: Will activate if one or more tires are under-inflated or over-inflated.
What It Means:
- Low tire pressure is the most common trigger.
- A damaged tire, puncture, or seasonal temperature change could be causing the pressure drop.
- In some cases, the sensor itself could be malfunctioning.
When to Seek Service:
Low tire pressure can affect fuel economy, handling, and safety. Check all tires, including the spare, and inflate them to the recommended PSI listed in your owner's manual or door jamb. If the light stays on, stop by Auto-Mattox for a tire check and sensor inspection.
Why Acting on Dashboard Lights Matters
Used vehicles can be reliable and long-lasting-especially when they're properly maintained. Dashboard lights give you early warnings to prevent bigger issues. Ignoring them can lead to unsafe driving conditions, expensive repairs, or reduced fuel efficiency.
Count on Auto-Mattox for Honest, Reliable Service
At Auto-Mattox, we know that buying a used car is only the beginning. We're here to help with diagnostics, maintenance, and repairs that keep your vehicle in top shape. If a dashboard light comes on, don't guess-bring your car in and let our trusted technicians take a look.
Have questions about your dashboard lights? Call or visit us today-we're always happy to help!

How Can We Help?
* Indicates a required field