Some 2016 – 2020 model year GS F, 2008 – 2014 model year IS F, 2022 – 2025 model year IS 500, 2018 – 2025 model year LC 500, 2021 – 2025 model year LC 500c, and 2015 – 2025 model year RC F vehicles with 2UR-GSE engines may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): •P0505 – Idle Control System •P2111 – Throttle Actuator Control System – Stuck Open The throttle body assembly with motor and ventilation hoses no. 2 and no. 3 have been modified to address these conditions.
full bulletin at NHTSA ↗2014 Lexus IS engine problems
moderate Owners of the 2014 Lexus IS have filed 3 NHTSA complaints about the engine at roughly $3,100 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See engine across all vehicles →
Complaints
3
Recalls
0
Avg fix
$3,100
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
I took my car to my mechanic for an oil change, and they noticed an oil leak at the timing chain cover, which could pose a safety risk, including a potential engine fire. They informed me this is a known issue on Toyota and Lexus vehicles with the 3.5-liter V6 engine. To confirm, I brought the car to a Lexus dealership, and they verified the same problem.
Took vehicle for an oil change and toyota dealership sees an oil leak at the timing chain cover which can cause an engine fire. A common problem as Toyota tech stated on all Toyota/Lexus 3.5 liter V6 24-valve, dual overhead cam (DOHC), Direct & port injection, Variable Valve Timing (VVT-i), 306 hp.
Timing chain cover leak in a 2014 Lexus IS350 is a relatively common issue for vehicles 3.5 liter engine 2GR-FSE. The leak typically occurs due to a failing gasket or sealant on the timing chain cover. Here's what you need to know: Symptoms of a Timing Chain Cover Leak 1. Oil Leaks: Visible oil on the engine or under the car in which can cause a fire in engine compartment 2. Burning Oil…
Had engine trouble with your 2014 Lexus IS?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2014 Lexus IS?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2014/Lexus/IS.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.