2010 Lexus IS Engine Problems
- Complaints
- 4about this part
- Share
- 10%of 41 total for the year
- Median mileage
- 67,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine of the 2010 Lexus IS, 10% of the 41 complaints for this model year. Where a mileage was given, the median is 67,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Known by Lexus as a common failure in the 2ur engine IS the valley plate coolant leak. This IS a failure that the majority of owners in the forums have reported as well as my personal vehicle experiencing. Can happen as few as 50k miles. Common cost for repair to the owner IS between $2000 and $3000. Mine has happened even after meticulous maintenance.”
NHTSA complaint #11320464, filed 2020-04, 67,000 miles“Isfs year models 2008-2014 are affected the valley plate leak due to the fact that toyota/Lexus utilized the improper sealant and used the improper amount, leading to the heat exchanger leaking coolant once the original, inadequate sealant begins to disintegrate. This could cause a condition where the engine could fail and someone could get hurt. Furthermore, all isfs will eventually have a cracked rh manifold on the #8 runner. This can cause a fire hazard in addition to carbon monoxide poisoning.”
NHTSA complaint #11320475, filed 2020-04, 67,000 miles“From time to time as im driving to either speed up or slow down, my car has no power and then within 2-3 seconds it hits hard back into gear. I researched it on line about other Lexus and it stated that the problem IS in the computer and it has a glitches in the system that needs to be reset/cleared , there are times when it hits so hard that it feels like you have been rear-ended and hurts your back and neck . This IS very dangerous and should be fixed by Lexus at Lexus expense, thank you”
NHTSA complaint #11637041, filed 2025-01“While driving home in the freeway, I felt my car shake then a sudden loss of power. Then my CEL started blinking and my VSC lit. Got a code for engine misfire(P0302). Is250 has a lot of cases on engine misfires because of excessive carbon build up because of how the engine is designed. My car only has 108,000miles. Lexus released a Customer Support Program for this problem but it already expired. They only gave 9 years from date of purchase for it to be eligible for the free fix. …”
NHTSA complaint #11483484, filed 2022-09Related service bulletins
- 11021730Jul 30, 2025Some 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…
- 10205359Aug 6, 2013Oil Viscosity Applicability and Cfhange Interval Guide
- 10205358Apr 10, 2013Oil Viscosity Applicability and Cfhange Interval Guide
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 1 | 20% |
| 2020 | 2 | 33% |
| 2017 | 2 | 18% |
| 2015 | 1 | 11% |
| 2014 | 3 | 25% |
| 2013 | 3 | 33% |
| 2012 | 1 | 6% |
| 2011 | 2 | 13% |
| 2010 | 4 | 10% |
| 2009 | 3 | 8% |
| 2008 | 22 | 22% |
| 2007 | 6 | 5% |
| 2006 | 16 | 11% |
| 2003 | 3 | 25% |
Other parts of the 2010 Lexus IS
16 complaintsVehicle speed control
6 complaintsOther or unknown
5 complaintsTransmission and drivetrain
5 complaintsElectrical system
3 complaintsTires
3 complaintsBrakes
2 complaintsFuel system
2 complaintsSteering
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsElectronic stability control
1 complaintsLatches, locks and linkages
1 complaints
← All problems reported for the 2010 Lexus IS
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology