IsItAGoodCar

Common Problems with the
2009–2015 Lexus RX (AL10)

We've identified 2 known issues that can affect the 2009–2015 Lexus RX (AL10). 1 of these are serious faults that could be expensive to repair.

2
Known Issues
1
Serious
1
Moderate
0
Minor

All Known Issues

Brake Actuator Failure

SeriousBrakes

The hydraulic brake actuator can fail, leading to warning lights, a noisy brake pedal, and a very expensive repair. Lexus has supported some cars in the past, but many UK examples are now too old for goodwill.

Estimated cost: £1,500–£2,500Affects: 2009–2015Often appears around: 100,000+ miles

Typical symptoms

  • •"Squawking" or buzzing noise when braking
  • •Brake or ABS warning lights
  • •Longer pedal travel than normal

What to inspect before you buy

  • ✓Press the brake pedal repeatedly while stationary and listen for the pump cycling
  • ✓Check for stored ABS or brake-system codes
  • ✓Confirm the warning lights stay off after a cold start

Radiator Leaks

ModerateCooling System

The radiator can leak where the aluminium core meets the plastic end tanks, usually starting as a slow weep before turning into a more obvious coolant loss issue.

Estimated cost: £400–£700Affects: 2009–2015Often appears around: 80,000+ miles

Typical symptoms

  • •Pink crusting around the radiator seams
  • •Sweet coolant smell after a run
  • •Gradually dropping coolant level

What to inspect before you buy

  • ✓Inspect the lower corners of the radiator with a torch
  • ✓Check the coolant bottle and undertray for dried pink residue
  • ✓Watch the temperature gauge on a full test drive

Buying Tips for the 2009 Lexus RX (AL10)

  • ✓On RX 450h models, listen for a barking or squawking noise when repeatedly pressing the brake pedal while stationary; that is the classic warning for actuator trouble.
  • ✓Inspect the radiator and lower front crossmember for pink coolant staining, especially on cars that have towed or spent time in heavy traffic.
  • ✓Check every electric adjustment, and on higher-spec cars make sure any air suspension rises and settles evenly without warnings.

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Other Lexus RX (AL10) Year Periods

2009–2015

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