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EnginePart report

2015 Lexus NX Engine Problems

Complaints
3about this part
Share
12%of 26 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the engine of the 2015 Lexus NX, 12% of the 26 complaints for this model year.

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.

“The vehicle has 119285 miles on it. I have started to see oil leak from the transfer-case/transmission. I called lexus back in August 2023, they were aware of certain vehicle developing oil leak problems. They issued recall on certain vehicles and issued a TSB for oil leak repair. I called lexus today and took the vehicle to the dealership. There is an understanding that my vehicle won't be covered under recall even though the problem is known to lexus. This issue may lead to unexpected breakdown of the vehicle and lead to loose of control of the vehicle.”

NHTSA complaint #11620638, filed 2024-10

“Left work for work in the morning and as I turned off my street to get onto a main street, I drive a block and the Check Engine Light appears and message appears on my console State AWD System Malfuction. See Dealership Service. Drove to the dealership to drop off my care, and after 3 days of inspecting my car, the service specialist messaged me with a service summary of a list of items that need to be repaired to have my car run safely again. The total service totaling over 10k, which included repair head cylinder, valve guides, gasket, valve exhaust, cylinder head gasket cover. …”

NHTSA complaint #11611724, filed 2024-08

“I purchased this vehicle in 2015 - it has been dealer serviced and has never been in an accident. At just under 90,000 miles on the odometer, a major fluid leak started. It turns out that the rear main (crankshaft) seal had failed, causing a leak of transmission oil. No warning lamps or messages appeared. This failure resulted in an extraordinarily expensive repair, over $2,500.00 at the dealer, Lexus of Greenwood Village (Colorado). It was not covered on warranty. …”

NHTSA complaint #11548062, filed 2023-10

Related service bulletins

Engine: other model years

YearComplaintsShare of year
202424%
2023212%
2021318%
2020732%
201913%
2018425%
201719%
2016528%
2015312%

Other parts of the 2015 Lexus NX

Other or unknown
7 complaints
Fuel system
6 complaints
Air bags
4 complaints
Brakes
4 complaints
Transmission and drivetrain
4 complaints
Electrical system
1 complaints
Electronic stability control
1 complaints
Seat belts
1 complaints
Vehicle speed control
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2015 Lexus NX

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