Toyota Highlander 120V Outlet Not Working: Quick Fixes

The 120V outlet in your Toyota Highlander may not work due to a blown fuse or a faulty inverter. Check these components first.

The Toyota Highlander offers advanced features, including a convenient 120V outlet. This outlet allows you to power small appliances and devices on the go, enhancing your travel experience. If the outlet stops working, it can be frustrating and inconvenient. Common causes include a blown fuse, which can be easily replaced, or a faulty inverter, which may require professional attention.

Regular maintenance and checks can prevent such issues. Understanding the potential problems and solutions can help you quickly address any malfunctions and keep your Highlander’s features running smoothly.

Introduction To The Toyota Highlander’s 120v Outlet

The Toyota Highlander’s 120V outlet is a handy feature. It allows passengers to power devices on the go. This outlet transforms the car into a mobile power station. Many users find it extremely useful for various activities.

The Convenience Of Onboard Power

The 120V outlet in the Toyota Highlander provides incredible convenience. Families can charge laptops, tablets, and phones during road trips. This means no more dead batteries while traveling. It’s also great for camping trips, allowing you to use small appliances. This feature ensures you stay connected and powered up wherever you go.

Common Scenarios For Outlet Use

There are many situations where the 120V outlet is beneficial. Here are some common scenarios:

  • Charging laptops for work or school
  • Powering small kitchen appliances during picnics
  • Running a mini-fridge for cold drinks on long trips
  • Using medical devices like CPAP machines

Here is a quick look at how different devices benefit from the 120V outlet:

LaptopWork on the go
TabletEntertainment for kids
Mini-fridgeKeep drinks cold
CPAP machineEnsure sleep apnea treatment

The 120V outlet truly enhances the versatility of the Toyota Highlander. It turns ordinary trips into more comfortable journeys. This feature is a must-have for modern families and adventurers.

Identifying The Issue

Having trouble with your Toyota Highlander 120V outlet? This guide will help. Identify common issues and perform basic diagnostic checks to fix the problem.

Symptoms Of A Malfunctioning Outlet

There are several signs your Highlander’s outlet might not be working:

  • No power from the outlet.
  • Devices plugged in do not charge.
  • Outlet feels loose or wobbly.
  • Strange smells or sounds from the outlet.

Initial Diagnostic Checks

Start by checking the basics to identify the problem:

  • Check the fuse: The outlet fuse might be blown. Look in the fuse box.
  • Inspect the outlet: See if the outlet looks damaged or burnt.
  • Test with another device: Plug in a different device to ensure it’s not the gadget.
  • Check the wiring: Ensure all wires are connected properly and securely.
  • Verify power supply: Make sure your car battery is not dead or low.

Performing these checks can help pinpoint the issue quickly. If none of these steps work, consult a professional.

Safety First: Precautions Before Troubleshooting

Troubleshooting the Toyota Highlander 120V outlet requires careful attention. Taking safety precautions can prevent injuries. Before you start, ensure you understand key safety steps.

Understanding Your Vehicle’s Electrical System

The electrical system in the Toyota Highlander is complex. It powers various components like the 120V outlet. Here’s a simple breakdown:

BatterySupplies power to the car
AlternatorCharges the battery
120V OutletProvides power for external devices

Understanding these components helps in safe troubleshooting.

Safety Measures To Avoid Injury

Follow these essential safety measures before touching the 120V outlet:

  • Turn off the car engine.
  • Disconnect the battery.
  • Wear insulated gloves.
  • Use tools with insulated handles.
  • Ensure the car is parked on a flat surface.

These steps reduce the risk of electrical shocks and injuries.

Using Proper Tools

Always use the right tools for troubleshooting. This ensures safety and accuracy. Here are some recommended tools:

  • Multimeter
  • Insulated screwdrivers
  • Wire strippers
  • Fuse puller

These tools help in diagnosing and fixing the 120V outlet issues safely.

Simple Solutions To Try

When your Toyota Highlander 120V outlet stops working, it can be frustrating. But don’t worry, there are simple solutions you can try. Often, the fix is straightforward and can be done quickly. Let’s look at some easy steps you can follow to get your outlet back in working order.

Checking The Power Source

The first thing to do is check the power source. Sometimes, the problem is not with the outlet itself. Make sure your car is turned on, as many outlets only work when the vehicle is running. Also, verify that the outlet is getting power. Try plugging in a different device to see if it works.

If the new device also doesn’t work, check the fuse box. The fuse for the outlet might be blown. Look for the diagram on the fuse box cover to locate the correct fuse. Replace it if it looks damaged or burnt.

Resetting The Outlet

Sometimes, resetting the outlet can solve the problem. Many Toyota Highlanders have a reset button for the 120V outlet. Locate this button, which is usually near the outlet. Press and hold the reset button for a few seconds. This can often restore power to the outlet.

If your Highlander does not have a reset button, you might need to disconnect the battery. Turn off the car and remove the key. Then, disconnect the negative terminal of the battery for a few minutes. Reconnect it and start the car again. This can reset the electrical system and might fix the outlet issue.

By following these simple solutions, you can quickly troubleshoot your Toyota Highlander 120V outlet. If these steps don’t work, it may be time to consult a professional. But, in many cases, these basic checks can solve the problem.

Fuse Inspection And Replacement

Is your Toyota Highlander’s 120V outlet not working? The issue might be a blown fuse. Inspecting and replacing the fuse is a simple task. This guide will help you locate the fuse box and change a blown fuse effectively.

Locating The Fuse Box

To begin, you need to find the fuse box. In a Toyota Highlander, the fuse box is usually located under the dashboard on the driver’s side. Here’s how to find it:

  • Open the driver’s door.
  • Look under the dashboard, near the steering wheel.
  • You might need to remove a cover to access the fuse box.

Ensure the car is turned off before opening the fuse box. This step prevents any electrical accidents.

How To Change A Blown Fuse

Once you have located the fuse box, follow these steps to change a blown fuse:

  • Identify the correct fuse for the 120V outlet. Use the fuse box diagram for guidance.
  • Use a fuse puller or pliers to remove the fuse.
  • Inspect the fuse. A blown fuse has a broken metal strip inside.
  • Replace the blown fuse with a new one of the same amperage.

Do not use a higher or lower amperage fuse. It can cause further damage.

For convenience, here’s a table summarizing the fuse replacement process:

1Identify the correct fuse using the diagram.
2Remove the fuse with a puller or pliers.
3Inspect the fuse for a broken metal strip.
4Replace with a new fuse of the same amperage.

Regularly check your fuses to avoid sudden issues. Proper maintenance helps keep your 120V outlet functioning.

When To Check The Circuit Breaker

Is the 120V outlet in your Toyota Highlander not working? The first step is to check the circuit breaker. This ensures safety and prevents further issues.

Function Of The Circuit Breaker

The circuit breaker is a crucial component. It protects electrical circuits from damage. It automatically stops the flow of electricity when it detects a fault. This prevents overheating and potential fires.

If your 120V outlet stops working, the circuit breaker might have tripped. This could happen due to an overload or a short circuit.

Resetting The Circuit Breaker

To reset the circuit breaker, follow these steps:

  • Locate the fuse box. It is usually under the dashboard or in the engine compartment.
  • Find the circuit breaker for the 120V outlet. It will be labeled.
  • Switch the breaker to the “off” position.
  • Wait for a few seconds.
  • Switch the breaker back to the “on” position.

This should restore power to your outlet. If the breaker trips again, there might be a deeper issue. Consider seeking professional help.

Toyota Highlander 120V Outlet Not Working?[Here is the Troubleshooting The Wiring]


When the 120V outlet in your Toyota Highlander stops working, it can be frustrating. Often, the issue lies within the wiring. Here’s a guide to help you troubleshoot the wiring effectively.

Visual Inspection Of Wiring

First, perform a visual inspection of the wiring. Open the panel where the outlet is located. Look for any obvious signs of damage.

  • Check for frayed or broken wires.
  • Look for burn marks or melted plastic.
  • Ensure all connections are secure.

If you spot any issues, you may need to replace the damaged parts. Sometimes, wires can come loose from their connectors. Make sure each wire is firmly attached.

Seeking Professional Help For Wiring Issues

If the visual inspection does not resolve the problem, it might be time to seek professional help. A certified mechanic can diagnose the issue more accurately.

  • They can use specialized tools to check for hidden problems.
  • Professionals can ensure the safety of the repairs.
  • They can also check other electrical components for issues.

Professional help can save you time and prevent further damage. It ensures that your Toyota Highlander’s 120V outlet is back in working order.

Considering The Power Inverter

The Toyota Highlander is a versatile SUV. One key feature is the 120V outlet. If the outlet is not working, the power inverter might be the issue. Understanding the role and signs of inverter failure is crucial.

Role Of The Inverter In Powering The Outlet

The power inverter in your Highlander converts DC to AC. This conversion powers the 120V outlet. Without the inverter, the outlet cannot provide power.

Here’s a simple breakdown:

BatteryProvides DC power
Power InverterConverts DC to AC
120V OutletSupplies AC power

Signs Of Inverter Failure

There are clear signs that your power inverter is failing. Here are some common indicators:

  • Outlet not supplying power: This is the most obvious sign.
  • Inverter noise: Strange sounds from the inverter.
  • Overheating: The inverter gets too hot.
  • Warning lights: Dashboard warning lights may come on.

Pay attention to these signs. Address them quickly to restore your 120V outlet.

Expert Intervention

So, your Toyota Highlander’s 120V outlet isn’t working? Sometimes, you need an expert’s help. This section guides you on when to visit a technician and what to expect during a professional diagnostic.

When To Visit A Technician

If the 120V outlet isn’t working, check basic things first. Ensure the outlet is clean and the fuse is not blown. If it still doesn’t work, it’s time for expert intervention.

  • Fuse replacement didn’t help.
  • Outlet appears damaged.
  • Other electrical issues in the vehicle.

These situations call for a professional technician. They have the tools and skills needed.

What To Expect During A Professional Diagnostic

At the repair shop, expect a thorough inspection. The technician will check various components.

Fuse BoxThey will inspect and test the fuses.
WiringThey will check for any damaged or loose wires.
OutletThey will test the outlet for functionality.
BatteryThey will ensure the battery is providing enough power.

The technician will use diagnostic tools. These tools identify the exact issue quickly. You will get a detailed report of the findings.

Once the problem is identified, the technician will explain the repair process. You will also receive a cost estimate before any work begins.

Prevention Tips For Future

To avoid issues with the Toyota Highlander 120V outlet, follow these simple prevention tips. Proper use and regular maintenance can keep the outlet in good condition.

Proper Usage Of The 120v Outlet

Using the 120V outlet correctly is crucial. Follow these guidelines to ensure safe usage:

  • Do not plug in devices that exceed the outlet’s power rating.
  • Avoid using the outlet while the car is turned off.
  • Keep the outlet free from moisture and debris.
  • Do not use damaged or frayed cords.

These steps help prevent overloads and potential damage to the outlet.

Regular Maintenance Schedule

Regular maintenance is essential for the longevity of the 120V outlet. Follow a simple maintenance schedule:

Inspect outlet for damageMonthly
Clean outlet contactsQuarterly
Check power cordsBefore each use

Performing these maintenance tasks can help detect issues early. This ensures the outlet remains in working order.

Adhering to these tips can help avoid issues with the Toyota Highlander 120V outlet. Proper usage and regular maintenance are key.

Frequently Asked Questions

Why Is My Toyota Highlander 120v Outlet Not Working?

The 120V outlet may not work due to a blown fuse or a faulty inverter.

How Can I Fix The 120v Outlet?

Check and replace the fuse, or inspect the inverter for issues. Consult a professional if needed.

Where Is The 120v Outlet Fuse Located?

The fuse is typically located in the interior fuse box, often near the driver’s side dashboard.

Can A Dead Battery Affect The 120v Outlet?

Yes, a dead or weak battery can affect the functionality of the 120V outlet.

Is It Expensive To Repair The 120v Outlet?

Repair costs can vary. Simple fuse replacements are inexpensive, while inverter issues might be costlier.


Fixing the Toyota Highlander 120V outlet can be straightforward. Always check the fuse and wiring first. Consult a professional if issues persist. Regular maintenance ensures long-term functionality. Addressing outlet problems promptly keeps your vehicle safe and convenient. Stay proactive to avoid future electrical issues.

Enjoy a smooth, hassle-free driving experience.

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