Nissan Sentra 2017 & 2020: Problems & Fixes

Hey guys! So, you're looking for some info on the Nissan Sentra 2017 and Nissan Sentra 2020, huh? Awesome choice! These cars are pretty popular for a reason – they're generally reliable and get you from point A to point B without too much fuss. But, like any car, they've got their quirks. I'm going to break down some of the most common issues you might run into with these models, and, more importantly, how to fix them. Think of it as your one-stop shop for everything Sentra-related, whether you're cruising in a 2017 or a 2020. We'll cover everything from engine troubles to electrical gremlins, so buckle up and let's dive in! This is going to be super helpful if you are considering buying a used one or if you already own one. We will be discussing the most important topics.

Nissan Sentra 2017 and 2020: Powertrain Problems

Let's start under the hood, shall we? One of the biggest areas where you might find some trouble is the powertrain, which is a fancy word for the engine and transmission. Both the 2017 and 2020 Sentra models typically come with a 1.8-liter four-cylinder engine or an optional 1.6-liter turbocharged engine in the SR Turbo and NISMO trims. The most common complaint across these engines involves excessive oil consumption. Now, a little oil consumption is normal, but some Sentras seem to be burning through it at an alarming rate. This can lead to engine damage if left unchecked, so it's something to keep an eye on. How do you spot it? Check your oil level regularly. If you find yourself topping it off more often than you'd like, you might have a problem. The fix? Well, it can range from a simple oil change with a higher viscosity oil to a more involved repair like replacing piston rings or even, in worst-case scenarios, a complete engine overhaul. It’s always best to consult a mechanic for a proper diagnosis.

Another issue that pops up from time to time is related to the Continuously Variable Transmission (CVT). The CVT is designed to provide smooth acceleration and good fuel economy, but some owners have reported problems like shuddering or jerky shifts. This can be more noticeable in the older 2017 models, but it's something to be aware of in the 2020 as well. The solution here can also vary. Sometimes, a simple CVT fluid change can help. Other times, the transmission might need to be replaced. Again, consulting a qualified mechanic is crucial. They can diagnose the issue and determine the best course of action. They may also look for software updates which could help improve the transmission’s performance. Remember, the CVT is a complex piece of equipment, so make sure to get it serviced by someone who knows what they are doing.

Finally, the turbocharged 1.6-liter engine in the SR Turbo and NISMO trims, while offering more power, can sometimes experience issues like turbocharger failures or problems with the fuel system. These issues can manifest as a loss of power, rough idling, or even engine misfires. If you've got the turbo model and notice these symptoms, get it checked out ASAP. These problems are often more expensive to fix. Early detection is very important! Proper maintenance, including regular oil changes and using the correct type of fuel, can help prevent some of these issues.

Common Electrical Problems: Nissan Sentra 2017 & 2020

Alright, let's talk about those pesky electrical gremlins! Electrical problems can be a real headache, and they seem to plague a lot of cars. For the Nissan Sentra 2017 and 2020, some common complaints involve the infotainment system and various sensors. The infotainment system, which controls your radio, navigation, and other features, can sometimes glitch out. Problems like a frozen screen, unresponsive touch controls, or the system randomly shutting down are fairly common. The fix here often involves software updates, which can be done at a dealership or by a qualified mechanic. Sometimes, a hard reset (disconnecting the battery for a few minutes) might also do the trick. If the problems persist, you might be looking at replacing the entire head unit, which can be costly.

Another area to watch out for is the sensors. Modern cars are packed with sensors that monitor everything from tire pressure to engine performance. In the Sentra, some owners have reported issues with the mass airflow sensor (MAF), the crankshaft position sensor, and the oxygen sensors. A faulty MAF sensor, for example, can cause rough idling, poor fuel economy, and a loss of power. A crankshaft position sensor problem can lead to starting issues or even complete engine stalls. Oxygen sensor failures can trigger the check engine light and affect fuel efficiency and emissions. Diagnosing sensor problems can be tricky, as the symptoms can sometimes mimic other issues. A good mechanic will use a diagnostic tool to pinpoint the faulty sensor and replace it. Regularly inspecting and maintaining these sensors can prevent issues. Keep an eye on your dashboard, and if any warning lights come on, don't ignore them!

Power window issues, specifically the motor or regulator failing, are also occasionally reported. This can be annoying, especially if your window gets stuck down! Fortunately, these are usually not too expensive to fix.

Interior and Exterior Issues: Nissan Sentra

Let’s move on to the inside and outside of these cars, shall we? While the Nissan Sentra 2017 and 2020 are generally well-built, there are a few areas where you might find some issues. Inside the car, some owners have reported problems with the upholstery, especially on the driver's seat. Wear and tear are normal over time, but some owners have found that the seat material wears out more quickly than expected. The fix here is usually re-upholstering the seat or replacing the seat cover. Keeping your car clean and well-maintained is key to extending the life of the interior.

On the exterior, issues with paint quality have been reported. Some owners have found that the paint can chip or fade more easily than on other cars. This can be especially noticeable on certain colors. While there's not much you can do to prevent paint chips from road debris, regular washing and waxing can help protect the paint from the elements. If you notice any rust forming, address it promptly to prevent it from spreading. It's always a good idea to park in a garage or under a cover when possible to shield your car from the sun and other harsh weather conditions.

Another minor complaint involves the headlights. While the headlights themselves are generally reliable, some owners have found that they can become foggy or dim over time. This can reduce visibility at night. The solution is usually to replace the headlight bulbs or, if the lens is cloudy, to polish the headlights to restore clarity. There are plenty of DIY headlight restoration kits available, but if you're not comfortable doing it yourself, you can always take your car to a body shop or detailer.

Nissan Sentra 2017 & 2020: Safety Features

Safety is super important, so let's touch on the safety features in these Sentras. Both the 2017 and 2020 models come equipped with a range of safety features, but it's important to understand how they work and to keep them in good working order. The anti-lock braking system (ABS) is a crucial safety feature that prevents your wheels from locking up during hard braking, allowing you to maintain steering control. If you notice that your ABS warning light is on, get it checked out immediately. This could indicate a problem with the ABS system itself or with one of the wheel speed sensors. Ignoring this could seriously compromise your braking performance.

Airbags are another critical safety feature. All Sentras come with multiple airbags to protect occupants in a collision. It's important to make sure that the airbags are functioning properly. If the airbag warning light is illuminated, it could indicate a problem with the airbag system. Don't take chances with this, as it is your protection! Bring your car in for inspection to address the issue. Regular inspection is key! Ensure that there are no objects obstructing the deployment of the airbags and that all passengers wear their seatbelts at all times.

Some of the higher trim levels of the Sentra might include advanced driver-assistance systems (ADAS) like blind-spot monitoring, lane departure warning, and automatic emergency braking. These features can enhance safety and help prevent accidents. However, like any technology, they can sometimes malfunction. If you notice that any of these systems are not working correctly, have them inspected and repaired as needed. Make sure you understand how these features work, and never rely on them completely. Always pay attention to the road and be prepared to take action if necessary.

Preventative Maintenance: Keeping Your Sentra Running Smoothly

Alright, guys, let's talk about keeping your Sentra in tip-top shape. Regular preventative maintenance is absolutely crucial for preventing problems and extending the life of your car. First up, oil changes. This is the most basic, yet one of the most important things you can do. Follow the manufacturer's recommended oil change intervals, and use the correct type of oil. If you drive in harsh conditions, such as extreme heat or stop-and-go traffic, you may need to change your oil more frequently. Check your oil level regularly, and top it off as needed. Use your car's manual as a guide.

Next, check and replace fluids. This includes your coolant, brake fluid, transmission fluid (if applicable), and power steering fluid. These fluids can degrade over time and lose their effectiveness. Regular fluid changes will help prevent problems. Make sure to use the correct type of fluid for your car. Then, check your tires. Keep an eye on your tire pressure and make sure your tires are properly inflated. Check your tire tread depth regularly and replace your tires when necessary. Properly inflated tires improve fuel economy and handling, and they can also help prevent accidents. Rotate your tires according to the manufacturer's recommendations.

Finally, don't forget the small stuff. Replace your air filter regularly. Check and replace your spark plugs as needed. Keep an eye on your belts and hoses, and replace them if they show signs of wear or cracking. These small maintenance tasks can go a long way in preventing bigger problems down the road. Keep records of all maintenance performed. This will help you track your car's service history and identify any potential problems early on. If you're not comfortable doing these things yourself, take your car to a trusted mechanic. A little bit of preventative maintenance can save you a lot of money and headaches in the long run.

Troubleshooting Common Issues

If you're already experiencing problems with your Nissan Sentra 2017 or 2020, don't panic! Here's a quick guide to troubleshooting some common issues:

• Engine Problems: If your check engine light is on, take your car to a mechanic to have the code read. This will help you identify the source of the problem. Check your oil level regularly, and add oil as needed. If your engine is burning oil excessively, you may need to have it repaired.
• Transmission Problems: If your transmission is shifting hard or slipping, have it checked out by a mechanic. A CVT fluid change may solve the problem. In some cases, the transmission may need to be replaced.
• Electrical Problems: If your infotainment system is malfunctioning, try a software update or a hard reset. If that doesn't work, you may need to replace the head unit. If you're having sensor problems, have them diagnosed and replaced by a mechanic.
• Other Issues: Check your tires and tire pressure regularly. If you're having problems with your power windows, have the motor or regulator replaced. If you notice any rust forming, address it promptly.

Conclusion: Keeping Your Sentra Happy!

So there you have it, folks! A rundown of the common issues and how to fix them for the Nissan Sentra 2017 and 2020. By being aware of these potential problems and taking preventative measures, you can keep your Sentra running smoothly for years to come. Remember, regular maintenance is key, and if you're not comfortable doing the work yourself, don't hesitate to take your car to a qualified mechanic. With a little bit of care and attention, your Sentra will be a reliable and enjoyable car for you. Drive safe, and happy motoring!