BatteryMedium
Hybrid battery health on high mileage cars
- Typically appears
- 100,000+ miles
- What to inspect
- Request a hybrid health check from a Lexus dealer
2014–2021 Lexus NX · common problems & known faults
A hybrid SUV with an excellent reliability record where battery health is the main unknown.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
Quick answer
The most commonly reported faults on the 2014–2021 Lexus NX are Hybrid battery health on high mileage cars, Disc corrosion from regen braking and Rough idle or engine shudder when transitioning from EV to petrol power due to EGR valve carbon build-up. Most reported issues are medium or low severity, but a pre-purchase inspection is still recommended. 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 Lexus NX.
6.6/ 10
- Critical
- 0
- High
- 0
- Medium
- 5
- Low
- 3
Guidance only · reflects reported patterns, not a specific car's condition.
Known faults to check
BrakesMedium
Disc corrosion from regen braking
- Typically appears
- 30,000+ miles
- What to inspect
- Inspect disc faces for pitting
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Build the inspection planElectricalLow
Infotainment trackpad and screen faults
- Typically appears
- Age-related
- What to inspect
- Test the screen, trackpad and cameras
SuspensionLow
Bush wear on larger wheels
- Typically appears
- 80,000+ miles
- What to inspect
- Listen for knocks on rough roads
EngineMedium
Rough idle or engine shudder when transitioning from EV to petrol power due to EGR valve carbon build-up.
- Typically appears
- 70,000-100,000 miles
- What to inspect
- Start the vehicle and depress the accelerator to force the petrol engine to engage. Feel for excessive vibration, hesitation, or shuddering through the cabin.
BodyworkMedium
Water ingress pooling in the spare wheel well caused by failing rear light cluster seals or tailgate hinges.
- Typically appears
- 6-8 years
- What to inspect
- Lift the boot floor panel and physically check the lowest point of the spare wheel well and 12V battery tray for dampness, standing water, or rust stains.
ElectricalMedium
Power tailgate fails to open fully, drops back down, or emits a loud groaning noise due to weakened motorised struts.
- Typically appears
- 50,000-80,000 miles
- What to inspect
- Operate the power tailgate using the key fob. Listen for grinding noises from the spindle struts and ensure the boot lid holds firmly at its maximum height.
ElectricalLow
Power folding wing mirrors stick, fail to fold completely, or make a continuous clicking noise due to internal actuator failure.
- Typically appears
- 40,000-70,000 miles
- What to inspect
- Lock and unlock the car using the remote fob to trigger the auto-folding function. Verify both mirrors fold in and out smoothly without lagging or clicking.
Inspecting a Lexus NX?
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Build my inspection planFrequently asked questions
Is the hybrid battery a worry?
Rarely. A dealer health check settles it in minutes.
Why do these sell well?
Reliability reputation and low running costs.
Any weak point?
The infotainment trackpad annoys buyers on the test drive.
What are the standard service intervals for the NX300h?
The NX300h requires servicing every 10,000 miles or 12 months, whichever arrives first, alternating between minor and major schedules. Maintaining this routine within the official dealer network is highly recommended, as it activates the Lexus Relax warranty, providing up to 10 years or 100,000 miles of manufacturer coverage.
Does the F-Sport trim significantly affect ride quality?
Yes. F-Sport models feature adaptive variable suspension and bespoke damper tuning, paired with standard 18-inch alloy wheels. While this reduces body roll and sharpens handling, it results in a noticeably firmer ride over broken UK tarmac compared to the Luxury or Premier trims. Ensure buyers test drive accordingly.
Should we stock the NX200t petrol variant over the hybrid?
The NX200t is exceptionally rare in the UK, as the market heavily favoured the NX300h for its lower emissions and company car tax benefits. While the 2.0-litre turbocharged engine is robust and offers better performance, poor fuel economy and higher VED rates make it a difficult sell for most forecourts.
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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