Is the Lexus IS reliable?
50% of the 42 we inspected scored 60/100 or higher, with an average of 58/100 — it scores a little below average.
42
Cars inspectedreal pre-purchase inspections58/100
Average conditionall cars we check: 61/10050%
In good shape (60+)all cars we check: 56%Across 42 used Lexus ISs we inspected, this model scores a little below average — average condition 58/100 vs 61 for all cars we check. Every number on this page comes from real pre-purchase inspections — cars people were about to buy and paid an independent inspector to go through point by point, engine to underbody, paint depth to error codes. Not owner surveys, not warranty statistics, not forum lore: what we actually found.
What we found
Most common faults
Tires condition & wear · Brakes and tires
52%
Oil leaks · Engine
50%
Fuel trim out of range · Engine
48%
Active error codes · Electronic equipment
33%
Leaking or worn shock absorbers · Suspension
29%
Share of inspected Lexus ISs where each item was flagged.
How they score
Excellent 12%
Good 38%
Mediocre 29%
Poor 21%
Hidden history
What the seller might not mention — how often we find it on this model.
88%had a repainted or replaced panelall cars: 75%
2%showed structural repairall cars: 4%
26%had fault codes recently clearedall cars: 24%
How long does a IS stay good?
Good cars by mileage
Share of Lexus ISs in good shape (scoring 60+/100) by mileage and by age when we inspected them (each dot ≥5 cars; rolled-back odometers excluded from the mileage curve). The dashed grey curve is all cars we check.
More on Lexus
GS
26 cars · 69% good
RX
76 cars · 67% good
ES
51 cars · 49% good
GX
27 cars · 48% good
LS
29 cars · 38% good
Other Lexus models we've inspected — or see the full Lexus profile.
Straight from recent Lexus IS reports
2011 Lexus IS · 81k mi — flagged: smoke, excessive vapor in exhaust. Inspected Sep 25.
2007 Lexus IS · 176k mi — flagged: fault codes recently cleared, fuel trim out of range, tires condition & wear. Inspected Aug 12.
The bottom line
Don't let the paint fool you. Nearly nine in ten of these have a refinished panel, but the structure is almost never the problem. What actually bites you is the engine: oil leaks and fuel-trim issues hit about half of them. Start with a cold look underneath and a scan, then check the tires and shocks. If the bay is wet or the mixture is off, that is your cue to cut the price hard or walk; a shiny shell is not a reason to stay.
FAQ
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What are the most common problems on a used Lexus IS?
The items we flag most often are tires condition & wear (52%), oil leaks (50%), fuel trim out of range (48%). Have these checked before buying.
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Should I worry about cleared fault codes?
On 26% of these cars the ECU codes had been erased shortly before sale, which can hide active faults. Ask for a diagnostic scan and start the engine from cold.
Thinking of buying a Lexus IS? Get the exact car inspected before you pay.
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Based on 42 inspections · updated Oct 1, 2026
