EngineLow
Minor oil consumption on some 3.5L engines.
- Typically appears
- 80,000+ miles
- What to inspect
- Check oil level and top-up history.
2017 Toyota Highlander problems
A 2017 Toyota Highlander is now 9 years old, so an average example has covered around 121,500 miles. A mid-run car · most launch faults had been addressed by this point, and wear items are the main risk at this age. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2017 car has usually reached the mileage where they appear.
Compiled & reviewed by the VehicleFaults Research Team
Quick answer
The 2017 Toyota Highlander is 9 years old, so an average example has covered roughly 121,500 miles. At that mileage 5 of the documented faults are already due, so check those first.
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Build the inspection planFaults a 2017 example has usually reached
Documented onset mileage is at or below the ~122k miles an average 2017 car has covered.
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.
Faults that appear at any mileage
Age, electronics and build-related issues that are not mileage-driven.
TransmissionLow
Occasional harsh shifts on early 8-speed (2017+).
- Typically appears
- Any
- What to inspect
- Test-drive through the gears for smooth engagement.
ElectricalLow
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.
Inspecting a 2017 Toyota Highlander?
Turn this car's known weak points into a step-by-step viewing plan · what to inspect, what a bad result means and what to ask the seller.
Build my inspection planToyota Highlander · frequently 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.
Other Highlander model years
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