What does an illuminated coolant temperature light mean for my Hyundai?

Pay attention to the temperature gauge and lights on your dashboard. If a low coolant warning light comes on or your dashboard temperature gauge keeps rising, it’s likely that your engine is about to overheat (and could leave you stranded on the road). Wait for the engine to cool down, then have your coolant system checked immediately at your nearest Firestone Complete Auto Care.

Is an antifreeze leak dangerous?

Notice a leaking fluid that's green, bright orange, or pink and feels sticky? It might be antifreeze. Antifreeze is toxic but has a sweet smell and taste that's attractive to many cats and dogs. Do your pets a favor and have an antifreeze leak investigated ASAP. Then hose down the driveway or garage floor!

Do Hyundai Sonata radiators need to be cleaned?

To keep your Hyundai Sonata radiator running well, it’s wise to get it cleaned out a few times a year.

What can cause my Sonata to overheat?

One of the main reasons your Hyundai Sonata engine might overheat is because you don’t have enough coolant. Other causes include a clogged radiator, a damaged cooling fan, a malfunctioning thermostat, or a faulty water pump.

What is making my Sonata radiator sound like it’s boiling or rumbling?

Air pockets in your Sonata’s cooling system may cause a rumbling or boiling noise. You could also have a clogged radiator or simply need to replace the radiator cap.

There’s rust in my Sonata radiator. Should I be worried?

Yes. Rust in the radiator of your Hyundai Sonata can impair its cooling efficiency, cause leaks, and even result in complete failure of the radiator. Over time, rust can eat away at the radiator's cooling passages, forming tiny holes or cracks that can affect its operation. To help prevent rust from causing damage, you should stay on top of radiator maintenance.

Radiator Service & Repair for 2021 Hyundai Sonata

Get Started

Schedule Hyundai Sonata Radiator Service

Don’t let the heat of the moment – or of your engine – get to your head. Schedule a radiator repair or service for your 2021 Hyundai Sonata today.

Schedule an Appointment

When Does My 2021 Hyundai Sonata Radiator Need Service?

Not sure what a radiator does? That makes it difficult to know when to have your Hyundai Sonata radiator serviced, but you need to know the signs of radiator malfunction. The radiator is in the cooling system of your car, and it helps your engine temperature stay within a safe range. So, what happens when the radiator isn’t working quite like it should? You guessed it – your engine overheats, and it may even break down completely.

Regular, proactive service on the radiator in your 2021 Hyundai Sonata is essential for long-term engine health. Hyundai recommends that you replace coolant (also called antifreeze) at certain intervals, but you can also take note of any signs your radiator is going bad. You might be driving around (or about to be stranded) with a failing radiator if you see coolant leaks under your car, high engine temperatures, or a dashboard light that indicates low coolant. Visit your local Firestone Complete Auto Care for a Courtesy Check at the first sign of one of these issues.

Hyundai Sonata Coolant Fluid Exchange

What does radiator repair include? If you bring your vehicle to Firestone Complete Auto Care, we start with a comprehensive inspection of your Hyundai Sonata’s cooling system. We then do a machine-powered radiator exchange, replenish flushed chemicals, sealants, and lubricants, and then pressure check for leaks.

Radiator problems often go hand in hand with water pump problems. Some services for your 2021 Hyundai Sonata engine can wait, but the water pump is one part that needs to be addressed ASAP once an issue is identified. This pump ensures that coolant is always flowing through the radiator, hoses, and engine. Without it, your engine won't maintain its optimal temperature. Let our technicians examine your radiator pumps and hoses to help you stay ahead of any potential engine problems. From the radiator cap to the heater core, we’ll take excellent care of your 2021 Hyundai Sonata at Firestone Complete Auto Care. After all, we know it’s not just a car. It’s your car.

Hyundai Sonata Radiator Q&A

Wondering how to make your 2021 Hyundai Sonata radiator last as long as possible? Read on for answers to common questions, and visit your local Firestone Complete Auto Care when your engine shows any signs of a faulty radiator.

What does an illuminated coolant temperature light mean for my Hyundai? Pay attention to the temperature gauge and lights on your dashboard. If a low coolant warning light comes on or your dashboard temperature gauge keeps rising, it’s likely that your engine is about to overheat (and could leave you stranded on the road). Wait for the engine to cool down, then have your coolant system checked immediately at your nearest Firestone Complete Auto Care.
Is an antifreeze leak dangerous? Notice a leaking fluid that's green, bright orange, or pink and feels sticky? It might be antifreeze. Antifreeze is toxic but has a sweet smell and taste that's attractive to many cats and dogs. Do your pets a favor and have an antifreeze leak investigated ASAP. Then hose down the driveway or garage floor!
Do Hyundai Sonata radiators need to be cleaned? To keep your Hyundai Sonata radiator running well, it’s wise to get it cleaned out a few times a year.
What can cause my Sonata to overheat? One of the main reasons your Hyundai Sonata engine might overheat is because you don’t have enough coolant. Other causes include a clogged radiator, a damaged cooling fan, a malfunctioning thermostat, or a faulty water pump.
What is making my Sonata radiator sound like it’s boiling or rumbling? Air pockets in your Sonata’s cooling system may cause a rumbling or boiling noise. You could also have a clogged radiator or simply need to replace the radiator cap.
There’s rust in my Sonata radiator. Should I be worried? Yes. Rust in the radiator of your Hyundai Sonata can impair its cooling efficiency, cause leaks, and even result in complete failure of the radiator. Over time, rust can eat away at the radiator's cooling passages, forming tiny holes or cracks that can affect its operation. To help prevent rust from causing damage, you should stay on top of radiator maintenance.