Buyer Research

2020 Lexus IS — Should You Buy One?

Typical asking price: $26,000–$36,000. This is one of the more reliable vehicles in its class — here's what to watch for anyway.

Deciding between model years? Compare the 15 Lexus IS years we've written up →

Kestrel Take

Seven complaints and no recall on the 2020 IS, the last year before the 2021 refresh. Read that number for what it is: seven people filed, which tells you nothing about the thousands who did not, in either direction. Most of the seven are one owner, filing and re-filing about an IS 300 RWD whose 2.0L turbo misfires, flashes the check-engine light and drops into reduced power, and whom a dealer with factory help could not fix. The rest is the IS family's habit of chewing rear tires every 10,000 to 20,000 miles. Neither is a reason to skip the car; both are reasons to buy the V6 if you can, to scan the turbo four for stored misfire codes before money moves, and to look at the inside edges of the rear tires with a torch. The mechanical parts under this car had been in production for years by 2020, which is the honest case for it.

What we checked

Checked against public records, 2026-09-25

NHTSA holds 7 owner complaints for the 2020 Lexus IS, and no recall campaigns.

That is too small a record to read a pattern from, so we are not going to pretend otherwise — with numbers this low one owner moves the percentage by a lot. What has been filed is grouped under the transmission and drivetrain (2), the engine (2), the fuel system (2). Treat those as things to look at, not as the vehicle's known weaknesses. A thin file usually means few of these were sold or few owners filed. It is not evidence the vehicle is trouble-free, and the issues below are our own research rather than a reading of this record.

Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.

Known Issues for the 2020 Lexus IS

Ranked by wallet impact. These are documented, recurring problems — not freak accidents. How we decide that.

IS 300 RWD 2.0L turbo: intermittent misfires, flashing check-engine light, reduced power the dealer could not cureMedium

The engine, fuel system and powertrain clusters are the same 2026 case told three times: a 2020 IS 300 rear-drive with the 8AR-FTS turbo four that misfires without warning, flashes the check-engine light, shakes, and drops into reduced power on the road — three events in seven weeks, repeated dealer visits with the manufacturer's technical line involved, and no lasting fix. One owner is not a pattern, and we are not calling it one. It is worth knowing because this engine's known misfire causes — an ignition coil, a direct-injection injector, or a carboned intake valve on a car driven gently — cost real money to chase when the fault is intermittent. Before you buy, have a scan tool read stored and pending codes and the misfire counters; a car that has been cleared recently shows it in the readiness monitors. Then drive it hard once, from cold, and watch the light.

Repair cost (estimate): $150–$400 for a coil or plug set; $600–$1,500 for an injector or an intake valve cleaning

Source: NHTSA complaints filed under the engine (2), the fuel system (2), the transmission and drivetrain (2).

Rear tires wear out on the inside edge every 10,000 to 20,000 miles; alignment drifts and the car pulls leftMedium

One owner filed this under three headings: the alignment will not hold, the car vibrates and pulls left, and rear tires need replacing every 10,000 to 20,000 miles — with Lexus explaining it as the price of a sporty setup. That matches what IS owners generally report: the rear suspension geometry runs enough negative camber that the inner shoulders of the rear tires go first, especially on the wider staggered fitments, and a car that has been curbed or lowered makes it worse. Crouch behind each rear wheel with a torch and run a hand across the tread from outside to inside; a smooth outer shoulder and a bald inner one is a set of tires and an alignment on your shopping list. Ask for the last alignment printout, and a hard steer left and right on the drive should feel the same both ways.

Repair cost (estimate): $150–$250 for a four-wheel alignment; $600–$1,400 for a set of rear tires

Source: NHTSA complaints filed under the suspension (2), wheels and bearings (1), steering (1).

Turbo four versus V6: the 8AR-FTS wants clean synthetic oil and full coolant, and has the shorter track recordMedium

By 2020 the turbocharged 2.0L in the rear-drive IS 300 had five years of service, which is enough to know its habits and not enough to call it settled. Its port-plus-direct injection keeps the intake valves cleaner than the old IS 250, but the turbo's coolant plumbing and its sensitivity to stretched oil changes are what owners elsewhere associate with turbo rattle and coolant loss. This record does not show either and we are not saying it does. Look for oil changes at 10,000 miles or less on the service file, check the coolant is full and pink, and after a spirited run let it idle two minutes with the hood up and listen for a rattle at the turbo. The IS 300 AWD and IS 350 use the 3.5L 2GR-FKS V6, the lower-risk engine here.

Repair cost (estimate): $300–$900 for coolant lines or a gasket; $1,500–$2,800 for a turbocharger

Source: not yet checked against public records.

Walk-Away Red Flags

✗Check-engine light on, or readiness monitors showing the codes were cleared recently
✗A shudder or stumble at idle from cold on an IS 300 RWD
✗Rear tires bald on the inside shoulder with a good-looking outer edge
✗The car pulling left on a flat road with hands loose on the wheel
✗Coolant reservoir below the line

Good Signs

✓A clean scan after a hard drive, with every readiness monitor set
✓Rear tires wearing evenly across the tread, or a fresh set with the alignment printout in the glovebox
✓Lexus dealer service records with synthetic oil at 10,000 miles or less
✓Coolant full and pink with a receipt for the last change
✓An IS 350 or IS 300 AWD with the 3.5L V6, if you are choosing between them