IsItAGoodCar
Reliability Guide

Common Problems with the
2010–2011 Lexus RX (AL10)

We've identified 2 known issues that can affect the 2010–2011 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.

Est. Repair Cost: £1,500–£2,500
Warning Signs:

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

What to Inspect:
  • 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
Verified by IsItAGoodCar Research Team

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.

Est. Repair Cost: £400–£700
Warning Signs:

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

What to Inspect:
  • 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
Verified by IsItAGoodCar Research Team

Buying Tips for 2010–2011 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.
20092012
Check a 2010–2011 Lexus RX (AL10) by Registration