EngineLow
Minor oil consumption on some 3.5L engines.
- Typically appears
- 80,000+ miles
- What to inspect
- Check oil level and top-up history.
2014–2019 Toyota Highlander · common problems & known faults
The Highlander is a dependable three-row SUV with few serious issues — checks center on minor drivetrain and electronics items.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed July 2026
Quick answer
The most commonly reported faults on the 2014–2019 Toyota Highlander are Pink coolant crusting around the water pump pulley or a bearing whine from the auxiliary belt, Power tailgate fails to open fully, drops, or makes a groaning noise during operation and Clunking or knocking sensation felt through the steering wheel during low-speed manoeuvres. 1 of the documented issues are rated high severity · inspect these first. Full inspection points, onset mileage and what to check are listed below.
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Build the inspection planReliability snapshot
Based on the documented faults on this page for the Toyota Highlander.
6.7/ 10
- Critical
- 0
- High
- 1
- Medium
- 2
- Low
- 5
Guidance only · reflects reported patterns, not a specific car's condition.
Toyota Highlander problems by year
Which faults an average example has usually reached depends on its age. Pick a model year for the faults that matter on that build.
Known faults to check
TransmissionLow
Occasional harsh shifts on early 8-speed (2017+).
- Typically appears
- Any
- What to inspect
- Test-drive through the gears for smooth engagement.
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Build the inspection planElectricalLow
Entune infotainment glitches.
- Typically appears
- Any
- What to inspect
- Test the head unit and connectivity.
InteriorLow
Second-row/third-row rattles.
- Typically appears
- Age-related
- What to inspect
- Listen for rattles over bumps.
Body/ExteriorMedium
Power tailgate fails to open fully, drops, or makes a groaning noise during operation.
- Typically appears
- 50,000-80,000 miles
- What to inspect
- Cycle the power tailgate using the key fob and interior button. Listen for groaning from the spindle drives and ensure it opens fully without sagging.
SteeringMedium
Clunking or knocking sensation felt through the steering wheel during low-speed manoeuvres.
- Typically appears
- 40,000-70,000 miles
- What to inspect
- With the engine running and vehicle stationary, rock the steering wheel left and right past the centre point. Feel for notchiness or listen for a distinct clunk from the intermediate shaft.
Cooling SystemHigh
Pink coolant crusting around the water pump pulley or a bearing whine from the auxiliary belt.
- Typically appears
- 70,000-100,000 miles
- What to inspect
- Shine a torch down the right-hand side of the engine bay at the water pump pulley. Look for dried pink coolant residue and listen for a high-pitched whine at idle.
Climate ControlLow
Chirping, ticking, or squeaking noise emanating from behind the glovebox.
- Typically appears
- 30,000-60,000 miles
- What to inspect
- Turn the ignition on, set the climate control to manual, and cycle the blower fan through all speed settings. Listen for a high-pitched chirp from the passenger footwell.
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Build my inspection planFrequently asked questions
Is the Toyota Highlander reliable?
Very — it's among the most dependable three-row SUVs, with only minor issues to check.
Which engine is best?
The 3.5L V6 is strong and proven; the hybrid is also very reliable and efficient.
What should I check on a used Highlander?
Service history, oil level, and infotainment operation.
How often does the AWD transfer box require servicing?
The all-wheel-drive transfer box and rear differential fluids should ideally be replaced every 30,000 miles, despite some schedules suggesting longer intervals. Neglecting this can lead to premature wear of the viscous coupling or differential bearings. Always ensure the correct API GL-5 gear oil is used to prevent drivetrain binding.
Are there any concerns with the timing chain on the 3.5L V6?
The 3.5L V6 utilises a robust timing chain rather than a belt, which is generally maintenance-free for the life of the vehicle. However, the timing chain cover is prone to minor oil seepage. While rarely severe enough to cause dripping, it is a labour-intensive reseal if it worsens.
Can the XU50 Highlander tow heavy loads safely?
The 3.5L V6 models boast a maximum towing capacity of 2,268 kg when fitted with the factory towing preparation package, which includes an upgraded radiator and heavy-duty alternator. Hybrid variants are restricted to 1,587 kg. Always verify the V5C and check for aftermarket tow bars lacking necessary cooling upgrades.
Sources & further reading
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.
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