A yellow light shaped like an engine comes on in your dash while you’re driving, and you’re not sure whether to pull over or keep going.
The Mazda check engine light means your car’s computer found a problem with the engine or the emission system, and the cause can range from a loose fuel cap to a serious engine problem. If the light is steady, avoid high speeds and get it checked soon. If it flashes, park somewhere safe.
What does the Mazda check engine light mean?
The light comes on when your Mazda’s computer finds a problem with the engine, the emission system, or, on newer models, the transmission. A loose or missing fuel cap can set it off too. When the light comes on, the computer stores a record of what it found, and a technician uses that record to track down the cause.
| What you notice | What it can suggest | Best next step |
|---|---|---|
| The light came on soon after you filled up. | The fuel cap may be loose or missing. | Tighten the fuel cap securely. The light can take several trips to go out. |
| The light came on when the fuel tank was nearly empty. | On some Mazdas, a very low fuel level can turn the light on. | Refuel. If the light stays on, get it checked. |
| The light is on steady and the car drives normally. | The computer stored a fault, which can be minor or can need a real repair. | Avoid high speeds and get it checked as soon as possible. |
| The light is flashing, or the car shakes, loses power, smokes, or smells odd. | A serious problem. A flashing light most often means a misfire, where fuel isn’t burning properly, which can quickly damage the catalytic converter, the part that cleans up your exhaust. | Pull over when it’s safe, shut off the engine, and contact us. |
Can I keep driving with the Mazda check engine light on?
If the light is flashing, or the car is shaking, losing power, smoking, or smelling odd, pull over when it’s safe, shut off the engine, and contact us. Some newer Mazdas tell you to park somewhere safe and contact a dealer whenever the light comes on, so if you’re unsure, call us.
Check the rest of your dash too. If the red oil warning light or the engine temperature warning light is on along with the check engine light, stop the car in a safe place and shut off the engine. Don’t keep driving with either one on.
If the light is steady and the car drives normally, don’t drive at high speeds, and have it checked as soon as possible. A steady light isn’t an emergency, but ignoring it can damage expensive parts.
Can I reset my Mazda’s check engine light by disconnecting the battery?
No. Don’t disconnect the battery cables while the light is on. When the battery is reconnected, the engine could be damaged and catch fire.
The light turns off after the cause is fixed and the car’s computer confirms everything is back to normal.
Do I have to fix my check engine light in Florida?
Florida doesn’t require an emissions test to register or renew your car, so there’s no inspection that forces the issue.
Left alone, a problem can damage the catalytic converter and cost you fuel economy.
What happens when I bring my Mazda in for a check engine light at Daytona Mazda Service Center?
We connect diagnostic equipment to your Mazda to see what fault it stored when the light came on. That points us toward the system with the problem, and a technician then works out the cause.
It helps if you can tell us when the light came on and what you were doing, like driving at highway speed, starting up, or just after a fill-up. Anything you noticed, like shaking, less power, or a smell, helps too. To have your light checked, schedule service at Daytona Mazda Service Center.
Mazda Check Engine Light Questions in Daytona Beach, FL