Lexus Is Engine Problems
17 owner complaints filed with NHTSA across 6 model years.
Complaints by Year
Worst year: 2017. Best year: 2018.
Owner Reports
A representative sample of complaints filed with NHTSA.
I am filing this updated complaint to supplement my prior complaint (NHTSA ID No. XXX, filed January 27, 2026) regarding a recurring, safety-critical engine defect in my 2020 Lexus IS300 RWD, 8AR-FTS engine. DEFECT: Three documented misf...
The vehicle is experiencing a failure of the dual-zone HVAC system where the passenger side consistently blows hot air while the driver side is set to cold. This indicates a failure of the HVAC blend door actuator (servo motor), which is...
This vehicle has a recurring, safety-critical defect involving intermittent engine misfires, flashing MILs, reduced engine power, sudden loss of acceleration, and noticeable engine shaking. Despite multiple repair attempts and extended d...
Fuel pump not reading correct amount of fuel in tank. In order to get correct fuel reading have to disconnect battery for 3 hours and reconnect battery in so I can get an accurate reading.
Several time since owning my 2014 LexusIS350 with 141,000 miles on it, it have given inaccurate fuel reading. By almost 100 miles short. Had to disconnect the battery for the ECU to clear so a more accurate reading on fuel can be displayed.
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 middl...
I have been having problems with hard starts, rough idle, engine dying. My vehicle is experiencing all the same reported issues as a recall issued for a fuel pump on my make/model. My VIN however, is not covered under the recall. I've...
New engine
Car keeps randomly dying out while driving sometimes it comes back on sometimes It has to pull over and start the car again has a lean code pretty sure its the fuel pump noticed they have a recall on other is200t for fuel pump issues bel...
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), D...
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...
When I start my car, every once in a while it acts as if it is not getting enough gas and lags. In the colder months it seems to do this more often and sometimes will not start. When the weather is warmer it will sporadically do this. I ...