Lexus common problems & weak spots
The most widely documented Lexus weak spots in Canada: what breaks, what it costs to fix, and what to inspect before buying used.
Known issues
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Common
IS 250 carbon buildup (2.5L V6)
The 2.5 V6 cokes intake valves, causing rough idle and misfires around 120,000 km. Walnut blasting restores it.
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Common
Water pump weeps (some V6 models)
Weeping water pumps are common and cheap to fix if caught early \u2014 check for pink crust around the pump.
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Common
Remote Touch trackpad wear
The infotainment trackpad is distracting to use and wears with age. Test it thoroughly \u2014 it controls everything.
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Common
Rust on older models
Pre-2010 RX and ES models rust underneath in the salt belt. Otherwise these are among the most reliable used cars in Canada.
Lexus IS 250
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Common
Carbon buildup on the 2.5L
Rough idle on a used IS 250 almost always means carboned valves. Factor a walnut-blast cleaning into the purchase price.
Lexus RX
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Common
Water pump and oil leaks (older V6)
Older RX V6s weep from the water pump and valve covers. Both are routine jobs \u2014 just make sure they\u2019re done before they strand you.
Pick another make
Get it inspected before you buy
A pre-purchase inspection on a lift reveals rust, leaks and hidden problems before you pay for the car.