Toyota Highlander Reliability and Common Problems

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There’s no denying that the Toyota Highlander is one of the most reliable mid-size crossover SUVs out there. Unfortunately, like other vehicles, it can develop problems as it racks up mileage. Let’s take a closer look at its reliability and the most common issues across its model years to get an idea of the repairs it may need over time.

Are Toyota Highlanders Reliable?

2021 Toyota Highlander Platinum AWD in Moon Dust color
The Highlander’s gas mileage is considered slightly above average at 24 mpg in the SUV segment. Image source: Toyota.

The Toyota Highlander has received above-average scores on all major reliability ratings. RepairPal gave it 4.0 out of 5.0, ranking it seventh out of 26 SUVs. Its average annual repair cost is only $489, which is lower than the average $573. The Highlander’s gas mileage is considered slightly above average at 24 mpg in the SUV segment. It also has an impressive resale value, only depreciating by 44.6% after five years compared to the average value of 51.6% for SUVs.

Top Toyota Highlander Problems

As with any other vehicle, the Toyota Highlander may also develop problems over time. Here are some of the most common issues across different model years:

Fuel Tank and A/C Condenser Issues

The 2020 redesign has been reported to have issues with its fuel tank. Owners have complained about being unable to fill the tank to its maximum capacity of 17.1 gallons. Instead, they were only able to top up 12-14 gallons of fuel.

There have also been reports about a damaged air conditioning (A/C) condenser, which prevented the A/C system from blowing cool air. Most owners were able to fix the issue by replacing the faulty part. A new A/C condenser can cost anywhere between $60 and $150 plus labor costs.

A/C Condenser for Toyota Highlander
There have been reports about damaged air conditioning (A/C) condensers, which prevent the 2020 Toyota Highlander’s A/C system from blowing cool air.

Defective Airbags

Defective airbags were common in some 2013 and 2016 Highlanders. Airbags from these model years did not deploy upon collision, increasing the risk of injuries.

While no recalls were made for them, Toyota issued a recall for the 2020 redesign because of the same issue. Toyota recalled over 3,300 Highlander and Highlander Hybrids to replace faulty trim covers that could prevent the seat-mounted side airbags from deploying during a crash.

Excessive Wind Noise

Excessive wind noise is a common problem associated with 2017 Toyota Highlanders. Owners have reported hearing loud squealing and whistling noises from inside the cabin, which may be due to the side mirrors or loose door moldings.

Interior Problems

The 2015 Highlander has been reported to have uncomfortable seats that caused back pain during long drives. Drivers have also complained about a malfunctioning audio system that automatically resets the radio and navigation settings.

2015 Toyota Highlander Interior Driver Side
The 2015 Highlander has been reported to have uncomfortable seats that can cause back pain during long drives. Image source: Toyota.

Meanwhile, there are two common complaints about the 2008 model’s interior: a panic alarm that kept going off randomly and a defective CD player. Several owners have also reported that the redesign’s fragile armrests caved and ripped open after some time.

Oil Leaks and Loss of Oil Pressure

Oil leaks and loss of oil pressure are common in 2005-2013 Highlanders. Drivers have reported seeing a puddle of engine oil below their vehicles and smelling burning oil inside the cabin. These issues were usually caused by a faulty variable valve timing-intelligent (VVT-i) gear and a ruptured oil cooler line.

Faulty Ignition Coils

Engine misfire is a common issue found in 2001-2005, 2007-2008, 2010, and 2013 Highlanders. Many drivers have also complained about their Toyota trembling and jerking upon acceleration. Mechanics found that these issues were usually caused by a bad ignition coil. The cost of ignition coil replacements can range anywhere from $100 to $400 plus labor costs.

Toyota Highlander Ignition Coil
Owners of 2001-2005, 2007-2008, 2010, and 2013 Toyota Highlanders have encountered engine misfire, which was usually caused by a bad ignition coil.

Disconnected Air Filter Housing Hose

Several owners of 2001-2011 Highlanders complained about a disconnected air filter housing hose after changing the air filter or engine oil. This may affect the vehicle’s air-fuel ratio and cause the engine to hesitate, stall, or rough idle.

Battery Problems

The 2010 Toyota Highlander has had a few cases of battery problems. Some owners of this model year have complained about having a drained battery despite having only 4,000 miles on the odometer. This prevented them from cranking the engine, rolling down the windows, or unlocking the doors.

Head Gasket and Oxygen Sensor Failure

Owners of 2001-2007 Highlanders have reported that their engine overheats because of a blown head gasket. Mechanics found that the head bolts pulled the threads out of the engine block, which lifted the head and resulted in head gasket failure. Head gaskets typically cost anywhere between $50 and $250 plus labor costs.

Toyota Highlander Head Gasket Set
Owners of 2001-2007 Highlanders have reported that their engine overheats because of a blown head gasket.

Meanwhile, some 2001-2004, 2006, 2008, and 2010 Highlanders were reported to have faulty oxygen (O2) sensors, which cause engine misfire and rough idling. A new O2 sensor can cost anywhere between $100 and $250 plus labor costs.

Stripped Engine Bolt Threads

Stripped engine bolt threads were a common 2003 Toyota Highlander problem, which causes head gasket failure and the engine to overheat. This issue also causes the A/C system to blow hot air while the vehicle leaked antifreeze.

Clogged Idle Air Control Valve and Purge Control Valve Failure

Owners of some 2001-2003 Highlanders have complained about their engines dying upon start-up and being unable to hold an idle speed under cold temperatures. These issues are typically caused by a clogged idle air control valve that restricts airflow into the engine.

Purge valve failure is another common issue found in 2001-2003 Highlanders. Debris may clog the valve, affecting the vehicle’s combustion process and result in a failed emissions test.

Engine Failure and Excessive Oil Usage

The 2002 model had widely reported cases of engine failure and excessive oil usage. Engine failure for this model year was due to various reasons, such as a defective oil pump, blown gasket, scored bearings, damaged valves, and broken bolts from the engine block. Meanwhile, some owners complained that their SUVs burned oil at an alarming rate, which causes the oil warning lamp to illuminate before their scheduled oil change.

Keep in mind that no matter how reliable the Highlander is, problems can still arise over time. Because of this, it’s important to familiarize yourself with its most common issues to know which parts may need repairs in the future.

The post Toyota Highlander Reliability and Common Problems appeared first on In The Garage with CarParts.com.



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