Please wait while the page loads...

2020 Toyota Highlander Check Engine Light

If the check engine light in your 2020 Toyota Highlander starts flashing, that means that the problem needs hasty attention and your Toyota should be brought in hastily. A flashing light indicates that the problem is hazardous and if not taken care of hastily may result in considerable damage to the vehicle. This blinking light usually indicates a strict engine misfire allowing unburned fuel to be discarded into the exhaust system. There it can immediately expand the temperature of the catalytic converter to a point where damage is achievable, requiring an expensive repair. Some owners ask if spark plugs cause the check engine light to flash? This can strictly be the cause. A destructive, erstwhile or dirty spark plug can cause the engine to misfire. If your check engine light is twinkling, please contact our team of automotive experts at Nalley Toyota of Roswell quickly by calling 7707637398. If the problem is ignored or you continue to drive, this can spread to the spark plug wires, catalytic converter, or ignition coils which can lead to a very expensive repair.

2020 Toyota Highlander Check Engine Light Flashing

Although there are frequent potential causes of an illuminated Check Engine Light, we know from years of providing Check Engine Light Diagnosis Service that there are copious noted causes including something as detectable as a loose gas cap. Back-up noted reasons for a Check Engine Light are a malfunction with the fuel injection system, faulty emissions control part, faulty head gasket, damaged oxygen sensor, dirty mass airflow sensor, or defective spark plugs to name a little. No matter what is the root cause of the Check Engine Light, we have the Toyota Certified Technicians and the certified service protocol to isolate the root problem and repair it as decisive to restore factory specifications. When this happens, the Check Engine Light turns off, and you can leave the service center knowing that your Toyota issue was fixed.

Every 2020 Toyota Highlander was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the vehicle on its extensive systems. The sensors are continually detecting conditions while sending data to the electronic control company. If the electronic control company detects that the data is out of factory specifications, the Check Engine Light flashes telling you that there is a problem. However, that is the limitation of the Check Engine Light – it won’t tell you what absolutely is awry nor what to do about it. That’s where we come in; Nalley Toyota of Roswell provides a Check Engine Light Diagnosis Service that isolates the core problem and gives you a recommendation on what to do next from a Extremely Qualified Service trained.

How much does it cost to get the engine light checked?

The check engine light warns of issues ranging from a gas cap that's not well tightened to a more stringent failure like a detrimental catalytic converter or a problem with one of the car's oxygen sensors, so it cooperative to get the accessible code reading and diagnosis. The central cost for a check engine light diagnosis & testing is usually between $88 and $111. The cooperative news, Nalley Toyota of Roswell offers complimentary multi-point inspections and free diagnostics, in most cases, to help represent the cause of your check engine light.

How many miles can you drive with the check engine light?

It could be anything from a bad sensor to plug wires needing to be replaced. Since each check engine code has its own level of severity, it is convoluted to predict how many miles you can drive with the warning light on. The safest bet is to decipher the code and then plan your strategy accordingly. If you check engine light is shining, we recommend that you pull over and contact Nalley Toyota of Roswell to help determine if your vehicle is safe to drive in or if we recommend a tow truck.

2020 Toyota Highlander Check Engine Light Codes

The check engine light turning on can be quite intimidating to see that little light on your vehicle’s dashboard suddenly illuminates, but in reality, it is not something that should cause you to shut down in fear good away. If you hear the term, diagnostic trouble codes (DTC), these are just another name for check engine light codes. These are automotive computer codes stored by the ECM, also known as the OBD (on-board computer diagnostic system) in your Highlander. There are hundreds of different codes that your check engine light can indicate. While that sounds daunting, with some patience, tackling basic diagnostics will give you ready knowledge about your car and will also allow that Check Engine Light to do what it is genuinely supposed to do: be your guide. Unfortunately, logical and helpful car symptoms do not always accompany an illuminated Check Engine Light. Since there are hundreds of achievable OBD codes, there are also hundreds of achievable reasons for the light, including:

  • Bad Spark Plugs
  • Computer output circuit issues
  • Old Battery
  • Emissions controls issues
  • Ignition system faults
  • Transmission issues
  • Loose Gas Cap or Missing Gas Cap
  • O2 Sensor
  • Fuel and air metering systems problems

This is why it is crucial for someone who does not have a lot of automotive knowledge to not assume what a code means. If the engine light comes on due to a compatible concern, you risk damaging your car additional by not repairing the issue correct away. Call Nalley Toyota of Roswell at 7707637398 today or schedule your check engine light service online today! When your check engine light comes on, you should get it checked out expeditiously by a certified Toyota mechanic.

Will the check engine light reset itself?

The check engine light on your 2020 Toyota Highlander will constantly shut itself off if the issue or code that caused it to turn on is fixed. For example, if the cause of your check engine light coming on was a loose gas cap, if it's tightened, the light will turn itself off. Likewise, if your catalytic converter is going feasible, and you did a lot of stop-and-go driving, that may have turned on the check engine light due to the high usage of the converter. In most cases, your 2020 Toyota Highlander light will go off after about 20-40 miles. If you drive over that fee and the light is still on, you will need to bring it in to Nalley Toyota of Roswell so the light and code can be double-checked and reset.

Is it safe to drive your 2020 Toyota Highlander with the check engine light on?

This question is not exceedingly straightforward because it all depends on the severity of the issue. If the cause is a minor issue, such as a loose gas cap, it should be safe to drive. This is typically indicated by a functional glow of the check engine light. If you notice a difference in the performance of the vehicle, it could be an indication of a more strict problem. If the check engine light is shining, this means that there is a strict issue and it is recommended to service your Toyota Highlander immediately. Call the experts at Nalley Toyota of Roswell by dialing 7707637398 so you can describe the issues. Or reduce your speed and bring your 2020 Toyota to our certified mechanics as soon as viable.

What could cause the check engine light to come on in a 2020 Toyota Highlander?

When your check engine light comes on, this could be as straightforward as tightening or replacing your gas cap. Likewise, the check engine light could also be a warning of a dangerous problem that could cause dangerous break to your engine and come with a gigantic repair bill. Depending on your make and model, the check engine light will illuminate or blink. A normal glow generally means something less dangerous but a flashing check engine light illustrates that your vehicle’s engine is in dangerous trouble and service is essential straightaway. If your check engine light is flashing in your 2020 Toyota Highlander, we extraordinarily advocate not to drive the vehicle and schedule Toyota service straightaway. Below is a list of the most prevalent reasons your check engine light can come on:

  • Your 2020 Toyota Highlander has a vacuum leak. Every Toyota Highlander has a vacuum system that performs a beneficial variety of functions. The vacuum system also helps reduce destructive emissions by routing the fumes as gasoline evaporates through the engine. If you notice that your RPM is high in idle or randomly surges, a vacuum leak could be the cause. Over time, vacuum hoses can dry out and crack, particularly if they’re exposed to imposing heat or extreme pleasant.
  • Your O2 Sensor (Oxygen Sensor) needs to be replaced. The Oxygen sensor, established as the O2 sensor, measures the amount of oxygen in your exhaust system. If there is excess oxygen in your exhaust system, fuel burns faster and your vehicle will be less careful when it comes to fuel economy. So what happens if I don’t replace your O2 sensor? A faulty sensor can not only affect your miles per gallon, but it can cause damage to your catalytic converter and your 2020 Toyota Highlander's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to imply the decent variety of air and fuel that enters the cylinders in your engine. A detrimental O2 sensor can also cause a vehicle to fail an emissions test.
  • Issues with each aftermarket items. An aftermarket alarm, exhaust or distinct item can wreak havoc on your 2020 Toyota Highlander if it’s not installed correctly. These aftermarket parts and accessories can discard the battery, trigger the check engine light, or even avert the vehicle from starting. If these issues sound conscious, deliver your Highlander to Toyota and have our company of certified mechanics ensure that your aftermarket items were installed correctly and aren't causing each issue. Getting accessories, particularly aftermarket parts and accessories, or using OEM parts original place might estimate a tiny bit more but could save you money from having to get intelligent work and damage caused by intelligent installation work corrected.
  • New Spark Plugs or Plug Wires are necessary for your 2020 Toyota Highlander. The spark plugs are the part of your engine that ignites the air/fuel variety in the combustion chamber of your vehicle. This explosion is what moves the pistons and makes the engine run. The spark plug wires deliver the spark from the ignition coil to the spark plugs. If your spark plugs or spark plug wires are detrimental or aged, you will experience intelligent performance and reduced power. In some extreme cases, your engine will have trouble starting or continuing to run. Worn spark plugs and plug wires can cause clogged catalytic converter or damage to ignition coils and O2 sensors, large to more expensive repairs.
  • Your catalytic converter is detrimental or going detrimental. The catalytic converter is a part of your 2020 Toyota Highlander’s exhaust system. The catalytic converter's function is to turn the carbon monoxide created by the combustion process into carbon dioxide. A damaged catalytic converter is usually caused by neglected maintenance, which is why Nalley Toyota of Roswell offers a complimentary multi-point inspection with every Toyota service. If you have an issue with your catalytic converter and don't get it repaired, your 2020 Toyota Highlander will not pass an emissions test, show a lack of engine performance and will negatively affect your fuel economy. Your vehicle may run at a higher temperature, too, which can cause distinct problems from overheating.
  • Your mass airflow sensor (known as MAF) needs to be replaced. The mass airflow sensor in your Toyota Highlander is what determines how much fuel is necessary to run your engine efficiently by measuring the amount of air entering the engine. As a part of the engine management system, the mass airflow sensor helps adjust to current changes, like altitude. If your Toyota Highlander is having trouble starting, idling rough or has a sudden change in the position of the throttle pedal, this could be a sign of a detrimental mass airflow sensor.
  • One of the most natural and frequent cause is that your 2020 Toyota Highlander gas cap is loose, damaged or missing. The gas cap for your 2020 Toyota Highlander serves multiple purposes. It prevents gas fumes from being released when you aren't driving, it seals the fuel system and helps maintain pressure within the fuel tank. What happens if you have a detrimental fuel cap? If your gas cap is aged or has a ruptured seal, you can lose fuel through evaporation which will result in more trips to the pump. Luckily, to replace a gas cap isn't expensive. If your check engine light turns on abruptly after you put gas in your 2020 Toyota Highlander, original thing you should check is to make hopeful the cap isn’t loose — or that it's still on your car’s roof or at the fuel pump.
  • The battery is low or dead. The battery in your 2020 Toyota Highlander is every important. Without a vehicle battery, your vehicle won’t start, light up the road ahead, play the radio or charge your phone. Today’s vehicle batteries last much longer than they did a microscopic decades ago, and they don't surely require maintenance. The price of a new one depends on the type of Toyota you drive, but check our contemporary service coupons and specials.

What Does the Check Engine Light Mean?

One of the most typically misunderstood lights or indicators in your 2020 Toyota Highlander is the check engine light. The check engine light is part of the onboard diagnostics system, and displays in a few distinctive ways. It can say "Check Engine", it can be a symbol of an engine, it can even be a combination of both. This light illuminates in either an amber or red color and is part of the diagnostics system found on your vehicle. Onboard computers increasingly have controlled and monitored vehicle performance since the 80s and do a variety of things for your 2020 Toyota Highlander. Some of these include controlling engine speed, ignition timing, shifting automatic transmissions and implementing stability control, just to name assorted. With that being said, the check engine light can indicate a variety of contrasting things. It can be as efficient as your gas cap being loose or as perilous as engine knocking. If your check engine light is on in your 2020 Toyota Highlander, contact Nalley Toyota of Roswell. Contact Nalley Toyota of Roswell today! Our Toyota service department can help you find out what code is turning your check engine light on or diagnose why your check engine light is flashing.

Check Engine Light Service 2020 Toyota Highlander

What do you do when you’re driving along in your Toyota Highlander and suddenly, a yellow light illuminates on your dash and says "Check Engine". If you’re like most Toyota owners, your heart sinks a scant because you have scant idea about what that light is trying to tell you or how you should react. The fear of the unknown (or the cost of the unknown) can be just as stressful. But take a deep breath and realize the light coming on doesn’t imply you have to pull the car over to the side of the road and call a tow truck, but it is recommended that you get your 2020 Toyota Highlander checked as soon as achievable. Ignoring that warning could end up causing leading damage to expensive engine components.

When your 2020 Toyota Highlander's ECM (electronic control module), which is the vehicle's onboard computer, finds a problem in the electronic control system that it can’t polite, a computer turns on your check engine light. This amber or yellow light is customarily labeled “check engine” or “service engine soon”, or the light may be nothing more than a picture of an engine, or a picture of the engine with the word “check.”

When the light turns on, the ECM stores an engine code or “trouble code” in its memory that identifies as the issue, whether it's a sensor or a failing engine part. This code is read with an electronic scan tool that is used by our Toyota auto repair mechanics at Nalley Toyota of Roswell. There are also a number of relatively cheap code readers that are designed for do-it-yourselfers, should you choose that route too. While this code will tell you the issue that is detected, a true diagnosis still requires an effective professional to determine the issue and repair it.