What?s That Yellow Squiggly Line Anyway? (What Warning Lights Mean)
March 15, 2026
You may have noticed when you start your vehicle, you’ll see several symbols light up on the dash. They’re different colors and shapes, and sometimes it’s hard to figure out what each of those symbols mean.
They are warning lights and symbolize something in your vehicle is sending you a message. It’s the result of today’s vehicles having lots of computers. The good thing about having so many of these warning lights is they can let you know there’s an issue in need of attention before a more serious failure.
Sometimes it can be challenging to figure out what each light means, so here are some of the most common ones. One looks like your vehicle’s engine from the side, the Check Engine light. It alerts you to something as simple as a loose gas cap to a far more serious problem like an overheating engine. When the Check Engine light comes on, bring it into our shop. If it’s blinking or flashing, it likely has more urgent issues, so bring it in sooner.
Another warning light looks like a genie lamp with a drip at the end, and it’s the engine oil light. When it comes on, it means something’s wrong with the oil pressure, and that can be a sign of serious engine problems. Don’t ignore the oil light and bring it in for service as soon as you can.
One warning light looks like an old-style thermometer with a bulb at the bottom and degree marks on the side sitting in fluid. That’s all about your coolant level, and when it comes on, your engine may be overheating. It’s another one that’s telling you to bring it in to us for service quickly.
When your brakes aren’t working right, a light comes on that looks like a circle with a pair of half circles at the sides and an exclamation mark in the middle. Driving with malfunctioning brakes is dangerous, and it’s another warning light that should prompt you to get your vehicle looked at very soon.
If you see a light on your dash you don’t understand, try looking it up in your owner’s manual or bring it into us so we can help decipher it. Warning lights are there to help you, and so are we.
Blair's Ferry Automotive
1565 Blairs Ferry Rd.
Marion, Iowa 52302
319-447-6310
http://www.blairsferryautomotive.com
Need Service?
More articles from Blairs Ferry Automotive

How to Get Better Gas Mileage in Marion
April 26, 2026
There is no escaping it: things work better when you take care of them. Something most of us in Marion can relate to is our computers. You've probably noticed how they get slower and slower over time. It takes longer to start up and programs take forever to load. Eventually, many of us just get... More

Automotive Tips from Blair's Ferry Automotive: Making Your A/C System Last Longer
April 19, 2026
Marion drivers know that if their air conditioning system isnt making cool air like it used to, there is a problem. It may be as simple as adding more of the right kind of refrigerant.Your A/C requires special compressor oil, which circulates through the system along with the refrigerant, to lubr... More

The Puzzling Puddle (Leaks Under Vehicle)
April 15, 2026
Ever notice a little spot of liquid under your vehicle after you've parked in your driveway or garage? It may have been something as simple as water left from air conditioning condensation. But then again, it could be a sign that there's trouble brewing in one of your vehicle's systems. You can... More
