6 of 26 relevant owner complaints are about the engine, transmission or fuel system
No elevated drivetrain complaint concentration in the available NHTSA records for the 2015 Lexus IS. Engine, transmission and fuel system account for 23% of relevant complaints.
Better than 81% of the 1,230 model years we track (2010–2023).
Excludes 4 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 20%).
Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.
What owners reported
FUEL/PROPULSION SYSTEM07/28/2025
My car has had issues where the car will either not start, or the car will stall and turn off while I am driving on the road, causing my car to become a hazard for myself in the car, and other cars who have to avoid it being in the middle of the road. This first happened to me 2 years ago and I took it to a mechanic wh…
WHEELS,SERVICE BRAKES,ENGINE10/03/2023
On Friday, September 15, 2023 3:00PM, I had a “horrible” experience with my Lexus this weekend and sudden unintended acceleration. I was sitting at a red light, with my foot on the brake. Without warning the engine began to rev, the tires squealed and the car lurched forward. I through the car into park & turned of t…
FUEL/PROPULSION SYSTEM09/27/2021
after I get gas my car wont start. This has been happening for about 9 months. It takes about 10 mins for the car to turn on. Yesterday after I got gas and was driving, my car completely shut off in the middle of the freeway- thought I was going to die. VERY dangerous. Took my car to lexus back in may to be fixed and t…
Three of 6 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.
Before you buy a 2015 Lexus IS
No elevated drivetrain pattern for this model year. That describes the model, not the car in front of you.
Get an independent pre-purchase inspection from a mechanic you choose.
Ask for service records. A fuel system already replaced under warranty is a different car from one that was not.
Have the VIN?Paste it and get the full report for that car. First report free, then a 30-day pass covers a whole car search.
Experimental model-level information. This is not a vehicle inspection, vehicle-history
report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition
of any individual vehicle. Combined across 4 body styles NHTSA files separately.
