Why does the check engine light in my Prius turn on when I start my car?

It’s usually normal for your check engine light to turn on upon ignition. It’s just your Prius firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Toyota Prius engine noises bad?

Strange engine sounds can be a sign something’s off in your Toyota Prius. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage a Toyota engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Toyota Prius engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Is it okay to put water in my Toyota Prius radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

What could cause my Prius engine to suddenly stop?

Your Prius car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who repairs Toyota Prius engines?

Your local Firestone Complete Auto Care has you covered with expert Prius engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Engine Repairs for Your 2012 Toyota Prius

Learn about

2012 Toyota Prius Trim Options

Select your Toyota Prius trim level to learn more about Toyota-recommended engine repair. Use the following chart to find information.

L4/1.8L

Repairs for Your 2012 Toyota Prius

Nothing lasts forever. Even your Toyota Prius's many parts and pieces. When something breaks, we're ready. Select a repair or category to learn more about 2012 Toyota Prius services.

We’re Trained to Care for Toyota Prius Engines

Toyota Prius engines are known for their reliability. That might be why you bought it in the first place. Even so, pieces and parts can break down over time. Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 2012 Toyota Prius engine repairs. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced more than 500 million vehicles since 1926, and our technicians know Toyota Prius engines. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

My 2012 Toyota Prius Check Engine Light Is On

As soon as your Prius check engine light turns on, it’s time to get an expert’s opinion. A steady or flashing check engine light could signal a serious issue with your car’s ignition, Possible causes can include a failing oxygen sensor, damaged spark plug, a problem with your catalytic converter, or a leaking engine vacuum, but that's only a few of the possible causes. Stop by your local Firestone Complete Auto Care to get your Prius issues diagnosed and our expert techs will get the root of the problem. Other signs your Toyota Prius engine needs some TLC are essential fluid leaks, or engine misfiring.

Engine Repairs for Your 2012 Prius

If your 2012 Prius engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We never do any work without your sign-off. If a repair isn’t urgent right now, we’ll let you know. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. Turn to Firestone Complete Auto Care for your 2012 Prius engine repairs and you can drive easy knowing that we use Toyota-approved parts and fluids — timing belt, valve guide seal, fuses, or a different component.

2012 Toyota Prius Engine Q&A

Why does the check engine light in my Prius turn on when I start my car? It’s usually normal for your check engine light to turn on upon ignition. It’s just your Prius firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Toyota Prius engine noises bad? Strange engine sounds can be a sign something’s off in your Toyota Prius. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage a Toyota engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Toyota Prius engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Is it okay to put water in my Toyota Prius radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
What could cause my Prius engine to suddenly stop? Your Prius car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who repairs Toyota Prius engines? Your local Firestone Complete Auto Care has you covered with expert Prius engine repair. Schedule an appointment today and see us at one of our thousands of locations.