Most common 2015 Lexus RX problems
Share of the 20 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Lexus RX complaints by model year
Best RX years: 2012, 2013, 2014. Years to avoid: 2023, 2024, 2021, 2022, 2025. Compare all years →
What 2015 Lexus RX owners say
Engine & cooling
First, We are a victim of fraud and scam and are distressed since day one and loss of thousands of dollars. After searching and reviews, we bought a 2015 Lexus RX350 for family use from a seller who had owned this vehicle for over five years but the seller never disclosed and represented in the sale of this vehicle that It was rebuilt and had engine front cover timing gasket leak! They said it was clean title and didn't have any issues. Plus the blind spot sensors had issues. The same day these problems were recovered after we bought it and from the same first day we tried to return the vehicle and used all other option legally from day one till now to resolve it with the seller, but they didn't want to resolve neither return it or fix the problems with vehicle but they kept denying. …
Engine cut out suddenly while driving 45 MPH, followed by Battery Light, Check Engine Light, and Power Steering Light forcing hazardous emergency stop. Engine would no longer crank, and car had to be towed to nearest Lexus Certified Repair Facility. Technician scanned the system and found four Codes: P0335, P1603, P1604, P1605. After bore-scoping front three cylinders, technician tried to turn motor by hand and was unable to. The motor turned in reverse, but not forward. Technician removed oil pan to find pieces of valve spring broken and pieces of the piston rings and piston fragments from one of the rear three cylinders. Motor will need to be replaced or completely rebuilt after only 133,458 miles and regular servicing.
Steering
The contact owns a 2015 Lexus RX350. The contact stated that while driving over bumps on the roadway, there was an abnormal rattling sound coming from the vehicle. There was no warning light illuminated. In addition, the contact would lose slight control of the vehicle while turning the steering wheel to the left as the power steering became loose without warning. The vehicle was taken to a dealer where it was acknowledged that the power steering had failed, and the contact was provided an estimate for the repair. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 45,000.
The contact owns a 2015 Lexus RX. The contact stated that while operating the vehicle, the steering wheel was shaking and vibrating, and it was loose. The vehicle was taken to a local independent dealer who replaced the control arms, but the failure persisted. The vehicle was taken to an independent mechanic, who diagnosed the vehicle and determined that the power steering rack needed to be replaced. The vehicle was not yet repaired. No further information was available. The failure mileage was 118,000. The VIN was not available.
Driver assistance
First, We are a victim of fraud and scam and are distressed since day one and loss of thousands of dollars. After searching and reviews, we bought a 2015 Lexus RX350 for family use from a seller who had owned this vehicle for over five years but the seller never disclosed and represented in the sale of this vehicle that It was rebuilt and had engine front cover timing gasket leak! They said it was clean title and didn't have any issues. Plus the blind spot sensors had issues. The same day these problems were recovered after we bought it and from the same first day we tried to return the vehicle and used all other option legally from day one till now to resolve it with the seller, but they didn't want to resolve neither return it or fix the problems with vehicle but they kept denying. …
Blind Spot Warning. Available for inspection Warning Monitor goes on and off on a regular basis and light on dash identifies this problem No, not confirmed No, not inspected warning light on dash, message states failure
2015 Lexus RX engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.5L 6-cyl hybrid | CVT | FWD | 31 / 28 / 29 |
| 3.5L 6-cyl hybrid | CVT | AWD | 29 / 27 / 28 |
| 3.5L 6-cyl | 6-speed automatic | FWD | 18 / 25 / 21 |
| 3.5L 6-cyl | 8-speed automatic | AWD | 18 / 26 / 21 |
| 3.5L 6-cyl | 6-speed automatic | AWD | 18 / 24 / 20 |
EPA ratings. Class: Small SUV.
Frequently asked questions
Is the 2015 Lexus RX a good car?
Based on 20 owner complaints filed with NHTSA, the 2015 RX rates average: 15% fewer complaints than a typical year of the RX at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2015 Lexus RX?
The engine & cooling — 5 complaints, 25% of all complaints for this model year. Next are the steering (4) and driver assistance (4).
How many recalls does the 2015 Lexus RX have?
NHTSA lists no recalls for the 2015 Lexus RX. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the Lexus RX?
The best years by complaints, compared at the same age, are 2012, 2013 and 2014. Years to avoid or approach with caution: 2023, 2024, 2021, 2022 and 2025. See the full Lexus RX years comparison.
At what mileage do 2015 Lexus RX problems happen?
The median mileage reported in complaints is about 45,000 miles; 67% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.