Why does my LC500h’s check engine light come on when I start it?

Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your LC500h 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 Lexus LC500h engine noises bad?

Strange under-the-hood noises can point to problems within your Lexus LC500h engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my Lexus LC500h engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.

Can I put water in my Lexus LC500h radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your LC500h when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause the engine in my LC500h to suddenly stop?

If your LC500h car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Who can repair my Lexus LC500h engine?

Your local Firestone Complete Auto Care has you covered with expert LC500h engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Engine Repairs for Your 2023 Lexus LC500h

Learn about

2023 Lexus LC500h Trim Options

Select your Lexus LC500h trim level to learn more about Lexus-recommended engine repair. Use the following chart to find information.

V6/3.5L

Repairs for Your 2023 Lexus LC500h

Nothing lasts forever. Even your Lexus LC500h’s engine parts and components will change. We’re here to help when something stops working. Select a service or repair below to learn more about what we can do for your 2023 Lexus LC500h.

We Know Lexus LC500h Engines

Lexus LC500h drivers trust that their LC500h will take them near and far. You may have even been thinking about that when you bought it. However, the wear-proof engine has yet to be invented! Things can go sideways sometimes. If they do, you’ll have to find a dependable 2023 Lexus service center — quick! That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Lexus LC500h 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.

Check Engine Light on 2023 Lexus LC500h

As soon as your LC500h check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s flashing or steadily illuminated could point to problems with your combustion, Potential causes may include a faulty oxygen sensor, bad spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, to name a few possible causes. Bring your LC500h to Firestone Complete Auto Care to get computerized diagnostics and we’ll figure out why that check engine light is giving you grief. engine pinging noises, burning smells, or engine misfiring.

Engine Repairs for Your 2023 LC500h

When your Lexus LC500h engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We don't start working until we have your approval. If a repair isn’t urgent right now, we’ll let you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We want to give you all the details you need to make an informed decision about your engine repairs. Turn to Firestone Complete Auto Care for your 2023 LC500h engine repairs and you can feel good knowing that we only use Lexus-compliant replacement parts such as the serpentine belt, valve guide seal, ignition coil, or a different component.

2023 Lexus LC500h Engine Q&A

Why does my LC500h’s check engine light come on when I start it? Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your LC500h 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 Lexus LC500h engine noises bad? Strange under-the-hood noises can point to problems within your Lexus LC500h engine. Tapping or knocking could mean you're low on oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my Lexus LC500h engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.
Can I put water in my Lexus LC500h radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your LC500h when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause the engine in my LC500h to suddenly stop? If your LC500h car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who can repair my Lexus LC500h engine? Your local Firestone Complete Auto Care has you covered with expert LC500h engine repair. Schedule an appointment today and see us at one of our thousands of locations.