Toyota Harrier Hybrid Problems

Are you familiar with the Toyota Harrier hybrid problems?

The Toyota Harrier Hybrid is a mid-size luxury crossover SUV introduced in 2009. It is equipped with a hybrid powertrain, combining a 2.5-litre four-cylinder engine with an electric motor and a CVT transmission.

This combination gives the vehicle plenty of power and impressive fuel economy.  The Harrier Hybrid has advanced safety features and a luxurious interior, including all-wheel drive, adaptive cruise control, blind-spot monitoring, andvarious driver-assist technologies.

Despite its many advantages, the Toyota Harrier Hybrid has some common problems that can affect its performance, dependability, and safety.

This article will discuss the common issues associated with the Toyota Harrier Hybrid and provide possible solutions.

Toyota Harrier Hybrid Problems


Like any other vehicle, the Toyota Harrier Hybrid has various issues affecting its performance. These problems range from minor annoyances to major mechanical issues.

Some of the most common problems reported by owners include trouble with the hybrid battery, noisy engines, power steering problems, and transmission issues.

Other common issues that have been reported include brake issues, electrical system faults, poor fuel economy, and air conditioning malfunctions.

In addition, the Harrier Hybrid can suffer from various interior and exterior issues, including cracked dashboards, faulty door locks, and rattling body panels.

Most Common Toyota Harrier Hybrid Issues


  1. Battery Problems

One of the most common problems reported by owners of the Toyota Harrier Hybrid is a problem with the hybrid battery. The hybrid battery stores and provides energy to the electric motor and the gasoline engine.

Over time, the hybrid battery can become weak and unable to provide the necessary power to the engine. This can lead to engine stalling and poor fuel economy. Additionally, the hybrid battery can become overcharged and cause electrical problems.

  1. Noisy or Stalling Engine

The Toyota Harrier Hybrid is also known to be quite noisy, with the engine producing a loud noise when revved. This is usually caused by the engine not being properly maintained and a build-up of carbon deposits on the piston rings and valves [1].

This can cause the engine to run inefficiently, resulting in a loud noise when revved.  Various components are necessary for modern fuel-injected engines to inject a proper mixture of fuel and air into the combustion chambers.

The engine control unit (ECU) receives information from several sensors and regulates injections accordingly. The mass airflow sensor is the sensor that tells the ECU about the mass of the air entering the engine.

The ECU may receive inaccurate data if the MAF needs to be fixed. If this occurs, the ECU may instruct less gasoline to be injected, resulting in engine stalling [2].

  1. Transmission Issues

The vehicle has a continuous variable transmission (CVT), which can suffer from various issues. The transmission transfers power from the engine to the car’s wheels.

Over time, the transmission can become worn out and cannot transfer power efficiently. Common symptoms of problematic CVT include rough shifting, slipping, and shuddering.

If the transmission is not functioning properly, it may cause various problems, such as decreased fuel economy and acceleration. A lack of regular maintenance, a faulty transmission control module, and low-quality transmission fluid often causes this.

These issues cause the car to jerk and lurch when shifting gears, which can be a dangerous situation for drivers and lead to an accident and a reduction in the car’s performance. Thus, one must have the transmission control module checked and possibly replaced. Sometimes, the whole transmission may need to be replaced to fix the problem. [3]

  1. Power Steering Problems

The power steering system in the Toyota Harrier Hybrid is known to be unreliable and prone to failure in many of the vehicles. A lack of regular maintenance, a worn steering rack, and a build-up of dirt and grime on the power steering components often cause this. This can cause the power steering system to become sluggish and unresponsive, resulting in poor handling. [4].

  1. Suspension System Issues

Another common problem with the Toyota Harrier hybrid is an issue with the suspension system. The problem can cause the car to ride harshly, making driving difficult.

It could also involve the suspension being overly stiff, producing noise and failing to offer enough shock absorption. Shock absorbers are extremely noisy, and some owners complain that this is a persistent issue with the vehicle.

It may not appear a big concern initially, but it can become troublesome over time. This is determined by how well the suspension as a whole was installed.

An inspection of the suspension system is necessary to identify any possible issues. The suspension system components should be replaced to ensure the car is safe to drive.

  1. Brake Issues

Brake issues are another common problem reported by owners of the Toyota Harrier Hybrid. Worn brake pads and a lack of regular maintenance often cause this.

Harrier Hybrid has an anti-lock braking system (ABS), which can suffer from various issues. Common symptoms of a malfunctioning ABS include a pulsing brake pedal, reduced braking performance, and an illuminated ABS warning light [5].

If the ABS is not functioning properly, it can cause various problems.  Such problems include increased stopping distance and reduced steering control. Sometimes, the ABS may need to be replaced to fix the problem.

  1. Electrical System Faults

The electrical system of the Toyota Harrier Hybrid can also experience problems. The electrical system is responsible for controlling the various electrical components of the car, such as the lights, radio, and windows.

Over time, the electrical system can become overloaded and experience problems. This might lead to dim lights, sluggish windows, and intermittent radio. Additionally, the electrical system can become shorted and cause a fire.

These problems are often caused by a build-up of dirt and grime on the electrical components and a failure to have regular car maintenance. As a result, the electrical system becomes defective. [6]

  1. Poor Fuel Economy

Toyota Harrier Hybrid may as well suffer a poor fuel economy. This is often due to the hybrid powertrain needing to be optimized for the car.

The hybrid system is designed to capture energy from braking, which is then used to power the electric motor. However, the braking system gets worn out over time and might need to be properly calibrated. In that case, the electric motor may not be able to capture enough energy, resulting in lower fuel efficiency.

  1. Air Conditioning Problems

The Toyota Harrier Hybrid can also suffer from air conditioning problems. Common symptoms of a malfunctioning air conditioning system include warm air from the vents, weak airflow, and a noisy compressor.

If the air conditioning system is not functioning properly it might result in issues, such as uncomfortable cabin temperatures and increased humidity. In some cases, the air conditioning system may need to be replaced.

Possible Solutions to Toyota Harrier Hybrid Problems


Fortunately, several solutions are available to address the common problems reported by owners of the Toyota Harrier Hybrid. One key solution to prevent problems with the car is to keep up with regular maintenance and services.

Sometimes, the problem may be minor and can be fixed with a simple tune-up. However, if the problem is more serious, it may require more extensive repair work. In either case, it is important to address the problem as soon as possible to avoid further damage.

For engine noise, the engine must be regularly serviced, carbon deposits removed, and any worn-out accessories replaced. Additionally, it is important to have the hybrid battery checked periodically to ensure it is functioning correctly.

The transmission fluid must be replaced, and the system must be regularly serviced to address transmission issues. For power steering problems, the power steering components should be cleaned periodically.

To address brake issues, the brake pads need to be replaced. Finally, to address electrical system faults, it is recommended that the electrical components be cleaned.

Read Also: Toyota Corolla B Gear 


The Toyota Harrier Hybrid is an impressively popular mid-size SUV offering a unique combination of luxury, performance, and efficiency.

However, it is subject to various common problems ranging from minor annoyances to major mechanical issues affecting its performance and reliability.

Luckily, there are a number of solutions available that can help address any of these issues, ensuring that the vehicle remains dependable and safe.

The Toyota Harrier Hybrid can be reliable and enjoyable for many years with regular maintenance and proper care.

Following the manufacturer’s recommended maintenance schedule is important to allow the vehicle to run smoothly and efficiently. Thus, the car continues to provide a comfortable and trouble-free driving experience.

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