Please wait while the page loads...

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 realistic as tightening or replacing your gas cap. Likewise, the check engine light could also be a warning of a awesome problem that could cause awesome damage to your engine and come with a big repair bill. Depending on your make and model, the check engine light will illuminate or blink. A steady glow naturally means something fewer awesome but a flashing check engine light hints that your vehicle’s engine is in awesome trouble and service is imperative expeditiously. If your check engine light is flashing in your 2020 Toyota Highlander, we extraordinarily recommend not to drive the vehicle and schedule Toyota service today. Below is a list of the most classic reasons your check engine light can come on:

  • The battery is meager or dead. The battery in your 2020 Toyota Highlander is every notable. Without a car battery, your car won’t start, light up the road ahead, play the radio or charge your phone. Today’s car batteries last much longer than they did a few decades ago, and they don't truly require maintenance. The price of a new one depends on the type of Toyota you drive, but check our current service coupons and specials.
  • New Spark Plugs or Plug Wires are basic for your 2020 Toyota Highlander. The spark plugs are the part of your engine that ignites the air/fuel mixture 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 bad or classic, you will experience poor 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 wear and tear to ignition coils and O2 sensors, large to more expensive repairs.
  • 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 basic 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 cognizant changes, like altitude. If your Toyota Highlander is having trouble starting, idling rough or has a speedy change in the position of the throttle pedal, this could be a sign of a bad mass airflow sensor.
  • One of the most commonplace 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 bad fuel cap? If your gas cap is classic 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 immediately after you put gas in your 2020 Toyota Highlander, first thing you should check is to make satisfied the cap isn’t loose — or that it's still on your car’s roof or at the fuel pump.
  • Your catalytic converter is bad or going bad. 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 commonly caused by neglected maintenance, which is why Nalley Toyota Stonecrest 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 car may run at a higher temperature, too, which can cause further problems from overheating.
  • Your 2020 Toyota Highlander has a vacuum leak. Every Toyota Highlander has a vacuum system that performs a wide variety of functions. The vacuum system also helps decrease intrusive 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, especially if they’re exposed to notable heat or extreme cold.
  • Your O2 Sensor (Oxygen Sensor) needs to be replaced. The Oxygen sensor, admitted 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 cognizant 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 wear and tear to your catalytic converter and your 2020 Toyota Highlander's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to elect for the right mixture of air and fuel that enters the cylinders in your engine. A bad O2 sensor can also cause a car to fail an emissions test.
  • Issues with any aftermarket items. An aftermarket alarm, exhaust or further item can wreak havoc on your 2020 Toyota Highlander if it’s not installed accurately. These aftermarket parts and accessories can deposit the battery, trigger the check engine light, or even prevent the vehicle from starting. If these issues sound commonplace, bring your Highlander to Toyota and have our department of certified mechanics ensure that your aftermarket items were installed well and aren't causing any issue. Getting accessories, especially aftermarket parts and accessories, or using OEM parts first place might rate a tiny bit more but could save you money from having to get poor work and wear and tear caused by poor installation work corrected.

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

This question is not very prevailing 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 consistently indicated by a steady 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 serious problem. If the check engine light is shining, this means that there is a serious issue and it is recommended to service your Toyota Highlander abruptly. Call the experts at Nalley Toyota Stonecrest by dialing 7706290279 so you can describe the issues. Or reduce your speed and transport your 2020 Toyota to our certified mechanics as soon as conceivable.

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 tiny because you have tiny 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 represent 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 possible. Ignoring that warning could end up causing heavy damage to pricey engine components.

When your 2020 Toyota Highlander's ECM (electronic control module), which is the vehicle's onboard computer, finds a problem in the computerized control system that it can’t correct, a computer turns on your check engine light. This amber or yellow light is commonly 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 investigate tool that is used by our Toyota auto repair mechanics at Nalley Toyota Stonecrest. There are also a number of somewhat cheap code readers that are designed for do-it-yourselfers, should you embrace that route too. While this code will tell you the issue that is detected, a true diagnosis still requires an trained skilled to determine the issue and repair it.

2020 Toyota Highlander Check Engine Light

A flashing light indicates that the problem is alarming and if not taken care of hastily may result in major damage to the vehicle. 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. This blinking light ordinarily indicates a stringent engine misfire allowing unburned fuel to be ditched into the exhaust system. There it can promptly increase the temperature of the catalytic converter to a point where damage is accessible, requiring an expensive repair. Some owners ask if spark plugs cause the check engine light to flash? This can exclusively be the cause. A bad, former or dirty spark plug can cause the engine to misfire. If your check engine light is flashing, please contact our team of automotive experts at Nalley Toyota Stonecrest hastily by calling 7706290279. 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 several capacity causes of an illuminated Check Engine Light, we know from years of providing Check Engine Light Diagnosis Service that there are several present causes including something as authentic as a loose gas cap. Back-up present reasons for a Check Engine Light are faulty emissions control part, faulty head gasket, a malfunction with the fuel injection system, dirty mass airflow sensor, damaged oxygen sensor, or defective spark plugs to name a lot. 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 needed 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 crucial systems. The sensors are consistently detecting conditions while sending data to the electronic control squad. If the electronic control squad detects that the data is out of factory specifications, the Check Engine Light lights up telling you that there is a problem. However, that is the limitation of the Check Engine Light – it won’t tell you what exactly is awry nor what to do about it. That’s where we come in; Nalley Toyota Stonecrest 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 technical.

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

Since each check engine code has its own level of severity, it is hard to predict how many miles you can drive with the warning light on. It could be anything from a bad sensor to plug wires needing to be replaced. The safest bet is to decipher the code and then plan your strategy accordingly. If you check engine light is flashing, we represent that you pull over and contact Nalley Toyota Stonecrest to help find out if your vehicle is secure to drive in or if we represent 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 lights up, but in reality, it is not something that should cause you to shut down in fear right away. If you hear the term, diagnostic trouble codes (DTC), these are just additional 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 distinctive codes that your check engine light can suggest. While that sounds daunting, with a little patience, tackling cooperative diagnostics will give you convenient knowledge about your vehicle and will also allow that Check Engine Light to do what it is certainly supposed to do: be your guide. Unfortunately, distinguishable and cooperative vehicle symptoms do not always accompany an illuminated Check Engine Light. Since there are hundreds of viable OBD codes, there are also hundreds of viable reasons for the light, including:

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

This is why it is basic for someone who does not have a lot of automotive knowledge to not assume what a code means. Call Nalley Toyota Stonecrest at 7706290279 today or schedule your check engine light service online today! When your check engine light comes on, you should get it checked out quickly by a certified Toyota mechanic. If the engine light comes on due to a precarious concern, you risk damaging your car further by not repairing the issue right away.

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

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

Will the check engine light reset itself?

The check engine light on your 2020 Toyota Highlander will frequently 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 solid, 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 amount and the light is still on, you will need to bring it in to Nalley Toyota Stonecrest so the light and code can be double-checked and reset.

What Does the Check Engine Light Mean?

One of the most commonly 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 lot a few 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 shifting automatic transmissions ignition timing, controlling engine speed, and implementing stability control, just to name a few. With that being said, the check engine light can mean a variety of distinctive things. It can be as straightforward as your gas cap being loose or as risky as engine knocking. If your check engine light is on in your 2020 Toyota Highlander, contact Nalley Toyota Stonecrest. Contact Nalley Toyota Stonecrest today! Our Toyota service department can help you learn what code is turning your check engine light on or scan why your check engine light is twinkling.