2020 Lexus RX Engine Problems
- Complaints
- 5about this part
- Share
- 11%of 47 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the engine of the 2020 Lexus RX, 11% of the 47 complaints for this model year. 2 of these say a crash was involved, according to the filers.
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.
“Was driving into the garage (coasting) very slowly and as I was preparing to step on brake the car revved forward unsuspectedly - I have a video on my ring door bell and you can hear the engine then the squealing of the automatic braking system. I destroyed the adult 3 wheel bicycle that was stored along the wall but that helped the vehicle from crashing through the bricks - I remember shouting “what the hell is happening”. After much research as I knew I did not depress the accelerator in error - I found that this has been a common occurrence with Toyota and Lexus products. …”
NHTSA complaint #11430031, filed 2021-08“While driving the engine stalls. It has jolted back-and-forth at times and had to be taken to a dealer. It’s still stalls when trying to slowly accelerate especially uphills. Low gas mileage barely getting 18 miles per gallon. Warning lights flickering while car stallling. It’s like it’s having a seizure. This has happened a few times.”
NHTSA complaint #11740288, filed 2026-05“I own a 2020 Lexus RX 450h with approximately 129,803 miles. The check engine light came on and the vehicle stored diagnostic trouble code P0A2D, which indicates a failure of the drive motor/temperature sensor circuit that is integrated into the transmission/hybrid motor assembly. According to the Lexus dealer’s diagnosis, the temperature control sensor located on the transmission/hybrid drive unit has failed. …”
NHTSA complaint #11723917, filed 2026-03“Contact states they were sitting in DRIVE, with their foot on the brake. When the contact took their foot off the brake, they began to let the vehicle coast to about 5 MPH. Then, the vehicle lunged forward unexpectedly to about 25 MPH, when it collided with a rock. The vehicle had previously spent over 10 days in different dealerships to diagnose issues related to the engine running rough, the car stalling out, and the vehicle driving erratically and lunging forward. The contact only began to have issues with the vehicle after the NHTSA Denso Fuel Pump Recall. …”
NHTSA complaint #11507921, filed 2023-02Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 2 | 17% |
| 2025 | 4 | 18% |
| 2024 | 8 | 13% |
| 2023 | 11 | 18% |
| 2022 | 3 | 10% |
| 2021 | 2 | 3% |
| 2020 | 5 | 11% |
| 2019 | 7 | 21% |
| 2018 | 4 | 15% |
| 2017 | 10 | 21% |
| 2016 | 5 | 18% |
| 2015 | 5 | 25% |
| 2013 | 1 | 5% |
| 2012 | 3 | 25% |
| 2011 | 10 | 34% |
| 2010 | 21 | 27% |
| 2009 | 9 | 26% |
| 2008 | 15 | 21% |
| 2007 | 8 | 14% |
| 2006 | 8 | 25% |
| 2005 | 1 | 4% |
| 2004 | 2 | 5% |
| 2002 | 1 | 8% |
| 2001 | 1 | 5% |
| 1999 | 1 | 3% |
Other parts of the 2020 Lexus RX
21 complaintsOther or unknown
8 complaintsElectrical system
4 complaintsTires
4 complaintsForward collision avoidance
3 complaintsBody and structure
3 complaintsFuel system
2 complaintsBack-over prevention (rear camera)
1 complaintsBrakes
1 complaintsExterior lighting
1 complaintsTransmission and drivetrain
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2020 Lexus RX
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