2020 Hyundai Santa Fe SC Diesel: Problems & Fixes

Nov 16, 2025 by Alex Braham 50 views

2020 Hyundai Santa Fe SC Diesel: Problems & Solutions

Hey guys! So, you're here because you're either a proud owner of a 2020 Hyundai Santa Fe SC Diesel, or maybe you're thinking about getting one. Either way, you're in the right place! We're gonna dive deep into the common issues that plague this SUV, and most importantly, how to fix them. Owning a car is a journey, and like any journey, there can be bumps in the road. Knowing what to expect and how to handle it can save you a ton of stress and cash. Let's get started!

Engine Troubles: A Deep Dive

Alright, let's kick things off with the heart of the beast: the engine. The 2020 Hyundai Santa Fe SC Diesel is known for its powerful and fuel-efficient diesel engine, but even the best engines have their quirks. One of the most common issues reported by owners involves the diesel particulate filter (DPF). This filter is designed to catch soot and other nasty particles from the exhaust, but it can get clogged over time. When this happens, you might notice a loss of power, a rough idle, or even the dreaded check engine light.

So, what's the deal with the DPF? Well, it's a crucial component for emissions control. It traps soot, and the car is supposed to burn it off through a process called regeneration. Sometimes, however, regeneration doesn't happen effectively. This can be due to a number of reasons, like frequent short trips that don't allow the engine to get hot enough, or a faulty sensor that's not triggering the process. Another engine issue to be aware of is related to the fuel injectors. Diesel engines are super sensitive about fuel quality, and if you get a bad batch of fuel, or if the injectors get clogged, you could experience starting problems, misfires, and decreased fuel economy. Then there is the ever problematic EGR (Exhaust Gas Recirculation) valve, which can get clogged with carbon deposits, leading to rough running and poor performance. In addition, there are problems with the turbocharger, which can fail due to oil starvation or wear and tear, and also with the engine oil leaks, that will make you worried. These engines are complex pieces of machinery, and regular maintenance is the key. Make sure to keep up with oil changes, fuel filter replacements, and all the other scheduled services outlined in your owner's manual. That is the best approach to keep your 2020 Hyundai Santa Fe SC Diesel running smoothly for years to come. Remember that a bit of prevention can go a long way when it comes to engine troubles.

How do you fix these engine issues? For the DPF, it's often a matter of driving the car at highway speeds for a period of time to allow for regeneration. If that doesn't work, you might need to take it to a mechanic for a forced regeneration or, in some cases, replace the DPF altogether. For fuel injector problems, you might need to have them cleaned or replaced, depending on the severity of the issue. A fuel system cleaner can sometimes help with minor clogs. Regarding the EGR valve and the turbocharger, a proper diagnosis from a qualified mechanic is crucial. They can assess the damage and recommend the appropriate repairs, which might involve cleaning, repair, or replacement. And if you have oil leaks, they need to be addressed promptly to prevent further damage to the engine.

Transmission and Drivetrain Woes

Moving on to the transmission and drivetrain, these systems are responsible for getting the power from the engine to the wheels, and they can be prone to issues in any car, including the 2020 Hyundai Santa Fe SC Diesel. One common complaint centers around the transmission, with some owners reporting rough shifting or delayed engagement, especially when the transmission is cold. This can be caused by a variety of factors, including low transmission fluid, a faulty valve body, or internal wear and tear. A good starting point is to check the transmission fluid level and condition. If it's low or looks dirty, you should have it serviced by a professional. In more serious cases, you might need to have the transmission rebuilt or replaced.

The drivetrain, which includes the axles, differentials, and transfer case (if you have all-wheel drive), can also cause problems. You might hear clicking or clunking noises, especially when turning, or experience vibrations at certain speeds. These symptoms can be caused by worn-out CV joints, damaged differentials, or other issues. Regular maintenance, such as changing the transmission fluid and inspecting the drivetrain components, can help prevent these problems. If you experience any of these symptoms, it's crucial to have your car inspected by a qualified mechanic as soon as possible to prevent further damage. In addition, a faulty transfer case might also make you worried and be a source of stress and money loss. To fix transmission and drivetrain issues, start with the basics. Check the fluid levels and look for any leaks. If you find something that isn't right, don't ignore it. Get it checked out by a mechanic. Sometimes, a simple fluid change can solve the problem. Other times, you may have to deal with replacing a component, or an important repair.

Electrical System Glitches

Electrical gremlins can be frustrating in any car, and the 2020 Hyundai Santa Fe SC Diesel is no exception. A common issue reported by owners is related to the infotainment system. You might experience glitches, freezing screens, or problems with the Bluetooth connection. These problems can often be fixed with a software update. Check with your dealer to see if there are any available updates for your system. If the problem persists, it could be a hardware issue, and you might need to have the system repaired or replaced.

Another electrical issue that owners have encountered involves the battery. Like any car, the battery can die, especially if you leave the lights on or don't drive the car frequently. The battery is the heart of your car's electrical system, and if it fails, the car won't start. This can be caused by a variety of issues, including a faulty battery, parasitic drain, or a problem with the charging system. Always pay attention to your car battery, it will save you a lot of headache. You'll need to jump-start the car, and then, you will need to replace the battery. In some cases, there might be a problem with the charging system, which prevents the battery from charging properly. This could be due to a faulty alternator or a wiring issue. If you suspect a problem with your charging system, have it checked out by a mechanic immediately. Finally, there could also be issues with other electrical components, like the power windows, door locks, or lights. These problems can often be traced back to a blown fuse, a faulty relay, or a wiring issue. Always, before trying to fix the electrical system, make sure you disconnect the battery, for safety. Make sure to consult the owner's manual to locate the fuses and relays. If you're not comfortable working on electrical systems, it's best to take your car to a mechanic.

Suspension and Steering Problems

Let's talk about the ride quality. The 2020 Hyundai Santa Fe SC Diesel is designed to provide a comfortable driving experience, but issues with the suspension and steering can spoil the fun. Some owners have reported problems with the suspension, such as a bouncy ride, or clunking noises when going over bumps. This can be caused by worn-out shocks or struts, or problems with other suspension components.

The steering system can also be a source of problems. You might notice a stiff steering feel, or hear noises when turning the wheel. This could be due to a variety of issues, including a faulty power steering pump, or problems with the steering rack. Regular maintenance is key to keeping your suspension and steering systems in good shape. Make sure to have your car inspected regularly. When you notice something wrong, take action. The easiest way to fix it is to take the car to your local mechanic, who will be able to diagnose and fix the problems.

Interior and Exterior Concerns

Let's not forget about the stuff inside and outside the car. Some owners have reported issues with the interior, such as problems with the seats, or rattles and squeaks. Rattles and squeaks can be super annoying, and they're usually caused by loose trim pieces or other interior components. You can try to locate the source of the noise and tighten any loose parts, or take your car to a mechanic to diagnose the problem. Exterior issues are often related to the paint, or other body components. These are often caused by wear and tear. To keep your car's paint job looking its best, wash and wax it regularly. Address any rust spots or other damage as soon as possible.

Tips for Owners of the 2020 Hyundai Santa Fe SC Diesel

Here are some essential tips for owners of the 2020 Hyundai Santa Fe SC Diesel:

Regular Maintenance: Follow the maintenance schedule in your owner's manual to ensure your car is running smoothly.
Listen to Your Car: Pay attention to any unusual noises, vibrations, or smells. These can be early warning signs of a problem.
Find a Good Mechanic: Build a relationship with a trusted mechanic who can help you with repairs and maintenance.
Stay Informed: Join online forums or groups to connect with other Santa Fe owners and share information.
Warranty Awareness: Know your warranty coverage and how to make a claim if needed.

Conclusion

So, there you have it, guys! A look at some of the common problems and solutions for the 2020 Hyundai Santa Fe SC Diesel. While this SUV is generally a reliable vehicle, it's important to be aware of the potential issues and how to address them. By following these tips and staying proactive with maintenance, you can keep your Santa Fe running smoothly for years to come. Now go out there and enjoy the ride! Feel free to ask more questions!