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Lexus2018–2024 Major issues documented

Lexus UX: common faults & what to check

Thinking about buying a used Lexus UX (2018–2024) in New Zealand? We've documented 16 known faults for this model spanning transmission, electrical, engine, and brakes. Each researched and verified before it's published. The most serious issues here are rated major. Every one is listed below with its symptoms and repair cost, and each has its own page with where to look and what to ask the seller. Free, no account needed.

Check this exact Lexus UX

  • Odometer history
  • Money owing
  • Reported stolen
  • Ownership history
  • Official NZ vehicle register data
  • NZ owned and operated

Type the plate for the free basics. The full record is a paid check from $13.49, one car at a time, no subscription.

No NZ plate yet, or buying in Australia? Pick the generation and engine and start a free check below. New to KickTyres? How the check works →

16

Documented faults

Major

Most serious

$200–$1,800

Typical repair

6

Systems covered

Which Lexus UX are you looking at?

3 generation variants documented. Pick the shape you recognise: the faults, the servicing and the timeline below all narrow to it. Free, no account needed.

Now narrow it to the engine

A 1.8 and a 2.4 of the same car do not fail the same way, so the faults below narrow to the engine as well as the year. Free, no account needed.

Start your free check on this Lexus UX

No plate needed. You get the risk score, the buyer's checklist and the guided inspection for the exact car you picked above — not the whole nameplate.

Lexus UXEngine not picked yet

Pick the engine above first: the UX came with 4, and without it the report has to show all of their faults. Pick the engine

Free. The paid plate check is separate, and stays optional.

Can't confirm for this car

Lexus UX

Nothing has been narrowed yet, so nothing below is a claim about a particular car. Pick a year and an engine to see which faults apply.

Tell us the engine, or check the engine code on the car, before relying on this.

matched on no vehicle context

What to look out for

The checks worth doing on a Lexus UX before you hand over any money. Every documented fault is listed below, each with its own page.

  • Costly issue

    Cold-start the engine from fully cold and listen immediately for metallic rattling from the front of the engine lasting more than a few seconds.

    See why

    M20A-FKS Cold-Start Timing Chain Rattle and Stretch

    The 2.0-litre M20A-FKS direct-injection petrol engine is susceptible to timing chain elongation and tensioner wear, producing a characteristic metallic rattle on cold start that typically subsides after 10-30 seconds of warm-up. The fault is accelerated by infrequent oil changes and short-trip driving that prevents full oil pressure build-up at start. Severe cases result in timing chain skip, causing misfires or catastrophic engine damage. Toyota/Lexus issued TSB EG-0152T covering related 2.0-litre TNGA engine timing chain tensioner updates.

    What you would notice

    • Metallic rattling or clattering noise on cold start from the front of the engine
    • Rattle persists for 10-30 seconds before fading as oil pressure builds
    • Check engine light with cam-crank timing correlation codes P0016 or P0017
    • Rough idle or misfires on cold start in advanced cases
    • Visible oil sludge on dipstick or under oil filler cap indicating neglected servicing

    Typically $2,500–$6,000 to put right.

  • Costly issue

    During the test drive, listen for wheel bearing hum at 60–100 km/h.

    See why

    Front wheel bearing premature failure

    The UX ZA10 front wheel bearings are documented to fail at relatively low mileage (50,000–90,000 km) compared to expectations for a premium vehicle. The issue has been reported across both UX250h hybrid and UX300e electric variants. Symptoms include a humming or growling noise that changes with vehicle speed and varies when steering load is applied. On vehicles used predominantly on NZ chip-seal roads, bearing wear progresses faster.

    What you would notice

    • Humming or growling noise from the front of the vehicle, increasing with speed
    • Noise changes pitch or intensity when turning or lane-changing
    • Vibration through the floor or steering wheel at highway speed

    Typically $700–$1,800 to put right.

  • Costly issue

    Check the battery manufacture date on the label; batteries over three years old in an EV application should be treated as suspect.

    See why

    UX300e 12V Auxiliary Battery Drain Causing No-Start

    The UX300e pure electric vehicle relies on a conventional 12V lead-acid auxiliary battery to power control modules, contactors, and the high-voltage system wake-up circuit. Multiple documented owner complaints describe the 12V battery draining to a point where the vehicle cannot be started or unlocked, particularly after the car is left unused for more than one to two weeks, in cold ambient temperatures, or after over-the-air update cycles that keep modules active. Unlike the high-voltage traction pack, the 12V battery cannot be recharged by regenerative braking. Lexus issued a software update to reduce parasitic draw on some affected build dates.

    What you would notice

    • Vehicle fails to power on or unlock after sitting unused for more than one to two weeks
    • All displays dark and no response to key fob despite high-voltage traction pack having charge
    • Repeated requirement for jump-start from 12V terminals to wake the system
    • Unusual drain after software update cycles leave background modules active overnight
    • Warning message referencing 12V battery or power supply on instrument display

    Typically $200–$550 to put right.

  • Costly issue

    Connect a known-working Type 2 EVSE and confirm a charge session initiates within 60 seconds.

    See why

    UX300e Onboard Charger AC Charging Failure

    The UX300e onboard charger (OBC) converts AC grid power to DC for charging the high-voltage traction battery. Documented owner reports describe complete AC charging failure where the vehicle fails to initiate a charge session despite a functioning EVSE, along with charging sessions that start but terminate unexpectedly before completion. The OBC is a separate power electronics module from the main inverter. Failures leave the vehicle unable to charge at home or public AC stations, with DC fast charging (if available) as the only workaround. OBC replacement is a dealer-only repair requiring high-voltage system isolation.

    What you would notice

    • Vehicle fails to initiate AC charge sessions despite EVSE handshake completing
    • Charging light on dashboard shows no charging activity when connected to AC supply
    • Charge sessions start then abort within minutes with no user input
    • Lexus app reports charging errors or shows vehicle stuck at 0% charge progress
    • Fault codes in the power electronics module related to OBC communication or overtemperature

    Typically $3,500–$8,500 to put right.

  • Costly issue

    Confirm by VIN at a Lexus dealer that the brake booster pump recall is complete.

    See why

    Brake booster pump recall (2019-2020 UX250h)

    Certain early UX250h models were recalled because the brake booster pump can fail, switching off stability control and the brake assist so the pedal becomes hard and demands much greater effort. You can still stop the car but it takes far more pedal pressure, which matters in an emergency. Dealers inspect and replace the pump free under the recall.

    What you would notice

    • Brake pedal suddenly firm/hard
    • Brake and VSC warning lights
    • Braking needs much more effort

    Typically $1,500–$3,000 to put right.

  • Costly issue

    Take the VIN to a Lexus dealer to confirm the fuel-pump recall was completed, or ask for the paperwork.

    See why

    Denso low-pressure fuel pump can fail and stall the engine

    Early UX200 and UX250h models share the Denso low-pressure fuel pump used across many 2018-2020 Toyota/Lexus vehicles, whose plastic impeller can crack, swell and jam, cutting fuel supply and stalling the engine without warning. The pump is replaced free under recall, so the risk is buying one where it was never done.

    What you would notice

    • Engine cuts out at speed or idle
    • Cranks but won't start
    • Rough running before a stall

    Typically $600–$1,200 to put right.

See all 16 documented issuesEverything researched for the Lexus UX.
Depends on which engine this Lexus UX has — 16Each of these is documented for one particular engine. Pick the year and engine above to see which of them apply.
Engine, transmission & cooling5

01UX250h Rear E-Four Electric Motor Bearing Noise and Seal Failure

hybrid2018–2024Transmission
RareTransmission $4,500–$11,000 to fix

Can't confirm for this car

The AWD variant of the UX250h uses a rear-mounted electric motor (E-Four system) that drives the rear axle independently of the front hybrid drivetrain. Documented cases in owner forums and NHTSA complaints describe development of a humming or growling noise from the rear of the vehicle attributable to the rear electric motor bearing wear, as well as oil seal failures that allow gear oil to contaminate the motor windings. The rear motor unit is not user-serviceable and requires specialist Lexus hybrid tooling to replace. Failures can present at relatively low mileage if the vehicle has seen water ingress or off-road use.

Symptoms to notice

  • Persistent humming or growling noise from the rear of the vehicle at highway speeds, speed-dependent not engine-dependent
  • Rear motor system warning light or AWD fault message on instrument cluster
  • Oil staining or leak visible beneath the rear motor/transaxle unit
  • Vehicle defaults to front-wheel-drive only with AWD system deactivated
  • Vibration felt through the rear floor at sustained motorway speeds

What to check

During a test drive at 60-100 km/h, listen carefully for a low-frequency hum or growl that changes with vehicle speed but not with engine RPM — this pattern indicates wheel bearing or rear motor bearing noise rather than a tyre noise. Test the AWD system by accelerating gently from a standstill on loose gravel if possible to confirm rear motor engagement. Visually inspect beneath the rear of the vehicle for oil staining around the rear motor/transaxle unit. If a workshop inspection is possible: On a scan tool check for rear motor system fault codes.

Where to look: Rear axle — rear electric motor and transaxle assembly under the boot floor

Ask the seller

  • “Have you noticed any humming or droning sound from the rear of the car at highway speeds?”
  • “Has the AWD system ever shown a warning or been reported as inactive by the vehicle?”
  • “Has any oil leak been identified underneath the rear of the vehicle?”

02M20A-FKS Cold-Start Timing Chain Rattle and Stretch

Cold-start the engine from fully cold and listen immediately for metallic rattling from the front of the engine lasting more than a few seconds.petrol2018–2024EngineRead the full fault: symptoms, where to look, what to ask the seller

03Denso low-pressure fuel pump can fail and stall the engine

Take the VIN to a Lexus dealer to confirm the fuel-pump recall was completed, or ask for the paperwork.2018–2020Engine
OccasionalEngine $600–$1,200 to fix

Can't confirm for this car

Early UX200 and UX250h models share the Denso low-pressure fuel pump used across many 2018-2020 Toyota/Lexus vehicles, whose plastic impeller can crack, swell and jam, cutting fuel supply and stalling the engine without warning. The pump is replaced free under recall, so the risk is buying one where it was never done.

Symptoms to notice

  • Engine cuts out at speed or idle
  • Cranks but won't start
  • Rough running before a stall

What to check

  1. Take the VIN to a Lexus dealer to confirm the fuel-pump recall was completed, or ask for the paperwork.
  2. Ask whether it has ever stalled.

Where to look: Fuel pump inside the fuel tank

Parts involved: Water pump.

Ask the seller

  • “Has the fuel-pump recall been carried out?”
  • “Has it ever stalled or failed to start?”

04M20A-FKS Excessive Oil Consumption via Piston Ring Blow-By

Check the engine oil dipstick — if it is significantly below the full mark before the next scheduled service, oil consumption is occurring.petrol2018–2023Engine
OccasionalEngine $150–$5,500 to fix

Can't confirm for this car

A subset of UX200 vehicles with the M20A-FKS direct-injection 2.0-litre engine have documented consumption of engine oil at a rate exceeding 1 litre per 3,000-5,000 km, attributed to piston ring wear patterns associated with the engine's short oil change intervals not being observed. The direct injection combustion process produces higher carbon and particulate loading on the rings compared to port injection engines. Owner-reported cases describe needing to add oil between services, with some NHTSA complaints noting consumption rates Lexus considers within specification but which owners find unacceptable. Severe cases cause blue smoke on start or under load.

Symptoms to notice

  • Engine oil level dropping noticeably between scheduled service intervals
  • Blue or grey smoke from the exhaust on cold start or when accelerating hard
  • Burning oil smell from the engine bay during or after driving
  • Oil level warning lamp illuminating before the next service is due
  • Carbon deposits visible around the tail pipe outlet

What to check

  1. Check the engine oil dipstick — if it is significantly below the full mark before the next scheduled service, oil consumption is occurring.
  2. Inspect the tailpipe for blue-tinged smoke on a cold start or under hard acceleration.
  3. Check the PCV system and oil filler cap interior for creamy or sludgy deposits indicating blow-by gases condensing.
  4. Request service records to determine how frequently oil has been topped up between changes.

Where to look: Engine internal — piston rings, cylinder bore; PCV system on top of engine

Ask the seller

  • “How frequently do you need to top up the engine oil between scheduled services?”
  • “Have you ever noticed blue smoke from the exhaust on start-up or under acceleration?”
  • “Has a dealer acknowledged any oil consumption concern or run a consumption test?”

05UX200 CVT/Direct Shift shudder and hesitation

Test drive in stop-start conditions feeling for shudder and hesitation, and check for any transmission software updates or fluid service.petrol2018–2024Transmission
OccasionalTransmission $300–$3,000 to fix

Can't confirm for this car

The petrol UX200's Direct Shift CVT can shudder or hesitate at low speed, particularly when cold or in stop-start traffic, as fluid and clutch behaviour settle. Noticeable low-speed judder should be assessed against normal CVT behaviour.

Symptoms to notice

  • Low-speed shudder or judder
  • Hesitation from a standstill
  • Droning under acceleration
  • Jerky stop-start behaviour

What to check

Test drive in stop-start conditions feeling for shudder and hesitation, and check for any transmission software updates or fluid service.

Where to look: Direct Shift CVT transmission

Parts involved: Clutch.

Ask the seller

  • “Any shudder or hesitation at low speed?”
  • “Has the CVT had any software update or service?”
  • “Any transmission warnings?”
Electrical6

01UX300e Onboard Charger AC Charging Failure

Connect a known-working Type 2 EVSE and confirm a charge session initiates within 60 seconds.ev2021–2024Electrical
OccasionalElectrical $3,500–$8,500 to fix

Can't confirm for this car

The UX300e onboard charger (OBC) converts AC grid power to DC for charging the high-voltage traction battery. Documented owner reports describe complete AC charging failure where the vehicle fails to initiate a charge session despite a functioning EVSE, along with charging sessions that start but terminate unexpectedly before completion. The OBC is a separate power electronics module from the main inverter. Failures leave the vehicle unable to charge at home or public AC stations, with DC fast charging (if available) as the only workaround. OBC replacement is a dealer-only repair requiring high-voltage system isolation.

Symptoms to notice

  • Vehicle fails to initiate AC charge sessions despite EVSE handshake completing
  • Charging light on dashboard shows no charging activity when connected to AC supply
  • Charge sessions start then abort within minutes with no user input
  • Lexus app reports charging errors or shows vehicle stuck at 0% charge progress
  • Fault codes in the power electronics module related to OBC communication or overtemperature

What to check

  1. Connect a known-working Type 2 EVSE and confirm a charge session initiates within 60 seconds.
  2. Verify the vehicle accepts a charge from multiple EVSE units to rule out cable faults.
  3. Review charging history in the Lexus app if the seller has it linked — look for frequently aborted sessions or error notifications.
  4. Ask whether AC home charging has ever failed to start.
  5. If a workshop inspection is possible: On a dealer scan tool check for OBC-related fault codes.

Where to look: Front motor compartment — onboard charger module integrated into power electronics assembly

Ask the seller

  • “Has the vehicle ever refused to start a charge session or terminated charging unexpectedly on AC?”
  • “Has the onboard charger or any power electronics module been replaced under warranty?”
  • “Can you demonstrate a successful AC charge session during the inspection?”

02UX300e 12V Auxiliary Battery Drain Causing No-Start

Check the battery manufacture date on the label; batteries over three years old in an EV application should be treated as suspect.ev2021–2024ElectricalRead the full fault: symptoms, where to look, what to ask the seller

03Multimedia Infotainment Screen Blank-Out and System Freeze

During the test drive, power the vehicle on and observe whether the infotainment display initialises without delay or flickering.2018–2024Electrical
CommonElectrical $1,500–$4,500 to fix

Can't confirm for this car

Across all UX variants, the Lexus multimedia unit — using either the Remote Touch Interface trackpad controller or the later touchscreen — is subject to spontaneous screen blank-out during driving, extended system freezes requiring a hard reboot, and complete unit failure requiring head unit replacement. The fault appears in NHTSA complaints across 2019-2024 model years. In some cases the screen goes dark while navigation is active mid-trip. The underlying cause is attributed to internal multimedia ECU hardware failure and insufficient thermal management of the head unit, rather than purely software faults. Lexus extended the warranty on the multimedia system in some markets following owner complaints.

Symptoms to notice

  • Infotainment screen goes completely black while driving with no warning
  • System freezes in place and becomes unresponsive to touch or trackpad input
  • Intermittent reboot cycles where the system restarts spontaneously during a trip
  • Reverse camera fails to display when selecting reverse gear
  • System requires full ignition off-on cycle to restore function

What to check

During the test drive, power the vehicle on and observe whether the infotainment display initialises without delay or flickering. Navigate through multiple menus and activate reverse camera — verify the display remains stable throughout. Ask the seller whether the screen has ever gone black during driving. Check whether any Lexus dealer warranty extension or goodwill repair for the multimedia unit has been performed.

Where to look: Centre dashboard — multimedia head unit behind the display screen

Ask the seller

  • “Has the infotainment screen ever gone blank or frozen while driving?”
  • “Has the multimedia unit ever been replaced or repaired under warranty or goodwill?”
  • “Does the reverse camera display reliably every time you select reverse?”

04UX250h hybrid battery thermal management concerns

Check the HV battery cooling intake vent for obstruction, scan hybrid system health, and review hybrid battery state if available.hybrid2018–2024Electrical
OccasionalElectrical $100–$3,000 to fix

Can't confirm for this car

The UX250h hybrid system is generally reliable but the HV battery cooling intake (behind the rear seat) can be blocked by debris, reducing cooling and battery life. Blocked vents and aging cells are the main used-buyer checks.

Symptoms to notice

  • Hybrid warning light
  • Reduced EV running / economy
  • Battery cooling fan running loudly
  • Blocked cooling intake vent

What to check

Check the HV battery cooling intake vent for obstruction, scan hybrid system health, and review hybrid battery state if available.

Where to look: HV battery and cooling intake behind rear seat

Ask the seller

  • “Any hybrid warning lights?”
  • “Is the battery cooling vent clear?”
  • “Has hybrid battery health been checked?”

05Hybrid Battery Monitoring False Low-Voltage Warning (TSB)

Scan for hybrid battery-related DTCs and note whether any warning has been displayed.hybrid2018 onwardElectrical
OccasionalElectrical $0–$400 to fix

Can't confirm for this car

Early production UX250h models (2018–2020 build dates) are subject to a Toyota and Lexus Technical Service Bulletin addressing false low-voltage warnings generated by the hybrid battery monitoring unit. The monitoring software incorrectly logs one or more cells as below threshold during specific ambient temperature or charge cycle conditions, illuminating the hybrid warning triangle on the dashboard. Lexus issued an ECU software reflash to correct the monitoring algorithm. Vehicles not yet reflashed will continue to generate the intermittent false warning.

Symptoms to notice

  • Hybrid system warning triangle appearing during normal driving with no reduction in power
  • Warning clears on restart and reoccurs intermittently
  • No driveability change, fuel economy change, or other measurable symptom

What to check

Scan for hybrid battery-related DTCs and note whether any warning has been displayed. Request Lexus dealer service history confirming the TSB software update has been applied. After the update the false warning should not reoccur. If the warning is persistent and the update has been applied, a genuine battery cell issue should be investigated.

Where to look: Hybrid battery management ECU associated with the traction battery pack, located under the rear seat or boot floor

Ask the seller

  • “Has the vehicle been to a Lexus dealer for the hybrid battery monitoring software update?”
  • “Has a hybrid warning light appeared and if so, what was the dealer diagnosis?”
  • “Is the Lexus service history complete including any TSB campaigns?”

06UX300e limited 50kW DC charging rate

Confirm the DC charge rate expectation with the owner, review real-world range, and check battery state of health if available.ev2020–2024Electrical
Very commonElectrical $0 to fix

Can't confirm for this car

The UX300e EV is limited to around 50kW DC fast charging, far slower than rivals, meaning long charging stops on trips. This design limitation, not a fault, is a key practical consideration for used buyers.

Symptoms to notice

  • Slow DC charging capped near 50kW
  • Long road-trip charging stops
  • Limited real-world range
  • Charge tapering early

What to check

Confirm the DC charge rate expectation with the owner, review real-world range, and check battery state of health if available.

Where to look: High-voltage battery and onboard charging

Ask the seller

  • “How long does a DC charge take on a trip?”
  • “What real-world range do you get?”
  • “Any battery health data?”
Body, brakes, suspension & interior5

01Brake booster pump recall (2019-2020 UX250h)

Confirm by VIN at a Lexus dealer that the brake booster pump recall is complete.hybrid2018–2020Brakes
OccasionalBrakes $1,500–$3,000 to fix

Can't confirm for this car

Certain early UX250h models were recalled because the brake booster pump can fail, switching off stability control and the brake assist so the pedal becomes hard and demands much greater effort. You can still stop the car but it takes far more pedal pressure, which matters in an emergency. Dealers inspect and replace the pump free under the recall.

Symptoms to notice

  • Brake pedal suddenly firm/hard
  • Brake and VSC warning lights
  • Braking needs much more effort

What to check

Confirm by VIN at a Lexus dealer that the brake booster pump recall is complete. Brakes should feel normal and light on the test drive; any hard-pedal episode or brake warning is a stop sign.

Where to look: Brake booster pump / actuator, engine bay

Ask the seller

  • “Has the brake booster pump recall been done?”
  • “Have any brake warning lights appeared?”

02Front wheel bearing premature failure

During the test drive, listen for wheel bearing hum at 60–100 km/h.2018 onwardSuspension
CommonSuspension $700–$1,800 to fix

Can't confirm for this car

The UX ZA10 front wheel bearings are documented to fail at relatively low mileage (50,000–90,000 km) compared to expectations for a premium vehicle. The issue has been reported across both UX250h hybrid and UX300e electric variants. Symptoms include a humming or growling noise that changes with vehicle speed and varies when steering load is applied. On vehicles used predominantly on NZ chip-seal roads, bearing wear progresses faster.

Symptoms to notice

  • Humming or growling noise from the front of the vehicle, increasing with speed
  • Noise changes pitch or intensity when turning or lane-changing
  • Vibration through the floor or steering wheel at highway speed

What to check

During the test drive, listen for wheel bearing hum at 60–100 km/h. Note any change when steering left or right. After lifting the front wheels, check for roughness or lateral play in each hub bearing. Inspect for any evidence of previous bearing replacement.

Where to look: Front hub/knuckle assembly — wheel bearing integrated into the hub unit

Parts involved: Wheel bearing.

Ask the seller

  • “Has any humming or droning noise been noticed at highway speed?”
  • “Have the front wheel bearings been replaced?”
  • “Has the vehicle been used predominantly on sealed roads or also on gravel and chip-seal?”

03Rear Drum Brake Corrosion and Binding (Hybrid Infrequent Use)

Inspect brake shoes for uneven wear indicating binding.hybrid2018 onwardBrakes
CommonBrakes $200–$600 to fix

Can't confirm for this car

The UX250h uses rear drum brakes, a cost-saving measure common across Toyota hybrid platforms. Because regenerative braking handles most deceleration electrically, the rear hydraulic drum brakes are rarely applied. Infrequent use allows the drum friction surface and shoe contact area to corrode and, on vehicles with extended periods of inactivity, the shoes can bond to the drum surface. Affected vehicles exhibit rear brake binding after sitting unused, a pulsing or grabbing feel when the rear brakes do engage, or uneven braking bias on emergency applications. Drum interior corrosion can score the shoe lining and drum surface, requiring drum machining or replacement.

Symptoms to notice

  • Pulsing or grabbing when braking at low speed after the vehicle has sat unused
  • Scraping noise from rear wheels following extended periods of inactivity
  • Vehicle pulling to one side under light braking
  • Rear brake drag or binding on release in cold or wet conditions

What to check

Inspect brake shoes for uneven wear indicating binding. Operate the handbrake actuator and confirm free release. On vehicles with infrequent use or coastal storage, drum servicing is advisable before purchase. If a workshop inspection is possible: Remove the rear drums and inspect the friction surface for corrosion, scoring, or glazing of the shoe contact band.

Where to look: Rear axle drum brake assembly behind each rear wheel

Parts involved: Body corrosion.

Ask the seller

  • “How frequently has the vehicle been driven and has it sat unused for extended periods?”
  • “Have the rear brake drums been inspected or serviced?”
  • “Has any brake pulsing, grabbing, or pulling been noticed?”

04Front Brake Pad Wear Sensor Corrosion Causing False Warning

Inspect the front brake pad wear sensor clip and wiring connector at the inboard pad for corrosion or wire chafing.2018 onwardBrakes
CommonBrakes $150–$450 to fix

Can't confirm for this car

UX250h models in NZ and AU high-humidity and coastal environments experience corrosion of the front brake pad wear indicator clip and sensor wire harness. Corrosion increases the sensor circuit resistance, causing the system to interpret the sensor as a worn-pad signal before the pads are actually near minimum thickness. Drivers inspecting the pads find acceptable remaining thickness. Replacement of the corroded sensor harness and clip is the repair.

Symptoms to notice

  • Brake pad wear warning light on dashboard
  • Front brake pads visually confirmed to be above minimum thickness when inspected
  • Warning does not clear after pad inspection confirms adequate thickness

What to check

  1. Inspect the front brake pad wear sensor clip and wiring connector at the inboard pad for corrosion or wire chafing.
  2. If the warning light is active but pads measure above 3 mm, the sensor circuit is the likely cause.
  3. Check for white or green corrosion at the connector body and sensor clip.

Where to look: Front brake caliper inboard pad position; wear sensor clip and wiring harness accessed through the wheel spokes or after wheel removal

Parts involved: Brake disc and pads, Body corrosion.

Ask the seller

  • “Has a brake warning light appeared and what was identified as the cause?”
  • “When were the front brake pads last inspected or replaced?”
  • “Has the vehicle been garaged in a coastal or high-humidity environment?”

05Remote touchpad infotainment lag and frustration

Try the touchpad and infotainment thoroughly for responsiveness and any freezing, and check for any available software updates.2018–2024Interior
Very commonInterior $0 to fix

Can't confirm for this car

The UX's Remote Touch touchpad controller is widely criticised for being laggy and distracting to use, and the system can be slow to respond. While not a mechanical fault, it is a common ownership complaint worth trying before buying.

Symptoms to notice

  • Laggy or imprecise touchpad cursor
  • Slow menu response
  • Difficult to use while driving
  • Occasional screen freezes

What to check

Try the touchpad and infotainment thoroughly for responsiveness and any freezing, and check for any available software updates.

Where to look: Centre console touchpad and infotainment head unit

Ask the seller

  • “Does the infotainment ever freeze?”
  • “Is the software up to date?”
  • “Does it have wireless CarPlay/updates?”

Lexus UX faults in detail

Each of these has its own page: the symptoms, where to look, what to ask the seller and what the repair costs. Free, no account needed.

M20A-FKS Cold-Start Timing Chain Rattle and StretchMajor · EngineUX300e 12V Auxiliary Battery Drain Causing No-StartMajor · Electrical

What these repairs cost on other cars

Some of the Lexus UX’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.

Other Lexus models

Lexus IS41 documented faultsLexus NX22 documented faultsLexus RX21 documented faultsLexus ES12 documented faultsLexus LS12 documented faultsLexus Altezza11 documented faults

Lexus UX buyer questions

Is the Lexus UX reliable?

Like any used car, it depends on the specific example and its service history. Across the 16 documented faults for the Lexus UX, the recurring problem areas are transmission, electrical, and engine. A Lexus UX with a full service history and no signs of the issues listed on this page can be a sound buy but each one needs to be checked individually before you commit.

What are the most common problems with a used Lexus UX?

We've catalogued 16 known faults for the Lexus UX, covering transmission, electrical, and engine. All 16 are written out in full on this page, with the symptoms to notice, what to inspect, and typical repair costs for each. Free to read, no account needed.

How much do repairs cost on a Lexus UX?

Most single repairs on the Lexus UX fall between $200–$1,800 at NZ independent-workshop rates. Some of the 16 documented faults cost less and a few cost considerably more, and no one car needs them all. Knowing which ones to look for before you view is what lets you negotiate the price down or walk away.

Should I get a pre-purchase inspection on a Lexus UX?

Yes. A Lexus UX inspection focused on its known weak points is the single best way to avoid an expensive mistake. KickTyres gives you a guided, model-specific inspection plus a market valuation and negotiation figure for $24.90 far less than the cost of missing one of the faults on this page.