Own a Lexus NX300H in the Phoenix area? EZ Swap LLC repairs and maintains the Lexus NX300H for model years 2015 to 2020. Our shop at 9050 N 9th St handles everything from routine service to diagnostics and major repairs.
To help NX300H owners know what to watch for, we reviewed public records from the National Highway Traffic Safety Administration (NHTSA). For these model years NHTSA has 91 owner complaints on file for the NX300H and 0 safety recall campaigns. The most-reported problem areas are fuel/propulsion system (20), engine (15), service brakes (14).
Most-Reported Lexus NX300H Problems
These problem areas come up most often in NHTSA owner complaints for the NX300H (all model years combined). Complaint counts reflect reports filed, not the share of vehicles affected, so popular and older models naturally have more.
| Problem area (NHTSA component) | Complaints | Share | |
|---|---|---|---|
| Fuel/Propulsion System | 20 | 21% | |
| Engine | 15 | 16% | |
| Service Brakes | 14 | 15% | |
| Power Train | 9 | 9% | |
| Air Bags | 8 | 8% | |
| Electrical System | 6 | 6% | |
| Visibility/Wiper | 6 | 6% | |
| Forward Collision Avoidance | 6 | 6% |
Fuel/Propulsion System
20 of the 91 complaints (21%) mention the fuel system. Fuel system problems can cause stalling, hard starts and poor mileage. We test fuel delivery and related sensors to find the real cause. See our no-start diagnostics and check engine light diagnostics pages.
Engine
15 of the 91 complaints (16%) mention the engine and cooling system. Engine and cooling complaints are best caught early in Phoenix, where heat pushes cooling systems and engine oil to their limits. We diagnose warning lights and check coolant, hoses and oil condition. See our check engine light diagnostics and oil change & maintenance pages.
Service Brakes
14 of the 91 complaints (15%) mention brakes. Brake complaints turn up on nearly every vehicle, and Phoenix stop-and-go traffic wears brake parts quickly. We measure pads and rotors, check calipers and fluid, and replace only what is worn. See our brake repair page.
Lexus NX300H Complaints by Model Year
The NX300H model years with the most NHTSA complaints on file are 2015, 2018, 2016. Older model years have had more time to collect reports, so use this table as a guide for what to inspect, not as a verdict on any one vehicle.
| Model year | Complaints on file | |
|---|---|---|
| 2015 | 27 | |
| 2016 | 19 | |
| 2017 | 11 | |
| 2018 | 20 | |
| 2019 | 8 | |
| 2020 | 6 |
Most Common Lexus NX300H Check Engine Codes
Owners often put the exact trouble code in their NHTSA complaint. These are the codes cited most often for the NX300H. The most-cited is P0087 (fuel rail pressure too low), mentioned in 3 complaints. Counts reflect complaints that name a code, not every car on the road.
| Code | What it means | Complaints citing it |
|---|---|---|
| P0087 | Fuel rail pressure too low Often a weak fuel pump, clogged fuel filter or pressure regulator or injector fault. | 3 |
A code is a clue, not a diagnosis. The same code can have several causes, so we test before replacing parts. See our check engine light diagnostics, and read whether it is safe to drive with the check engine light on.
Serious Incident Reports
Of the NHTSA complaints on file for the NX300H, 13 involved a crash, 1 involved a fire, 12 reported injuries. These numbers are drawn from self-reported complaints and are not verified findings. If your vehicle has an open recall, get it repaired promptly.
Keeping a Lexus NX300H Reliable in Phoenix
Arizona heat is the hardest test a Lexus will face. Batteries, belts, hoses, tires and engine oil all wear faster here, and a NX300H that spends its life in stop-and-go Valley traffic needs maintenance earlier than the owner's manual's normal schedule suggests.
Our recommendation for NX300H owners: follow the severe-service schedule, test the battery before every summer, inspect brakes and tires twice a year, and have any warning light diagnosed instead of ignored. If you are shopping for a used Lexus NX300H, a pre-purchase inspection shows what the paperwork does not.
Lexus NX300H Services at EZ Swap LLC
Get the details on our Phoenix Lexus NX300H repair service, or choose a service below.
Lexus NX300H FAQ
What are the most common problems with the Lexus NX300H?
Based on NHTSA owner complaints, the most-reported problem areas for the Lexus NX300H are fuel/propulsion system (20), engine (15), service brakes (14). Complaint counts reflect reports filed, not the share of vehicles affected.
Which NX300H model years have the most complaints?
The NX300H model years with the most NHTSA complaints on file are 2015, 2018, 2016. Older years have had longer to collect reports, so inspect any specific vehicle before buying.
What are the most common check engine codes on the Lexus NX300H?
In NHTSA owner complaints for the Lexus NX300H, the codes cited most often are P0087 (fuel rail pressure too low). A code points to a system, and testing confirms the actual failed part.
Does the Lexus NX300H have any safety recalls?
NHTSA lists 0 recall campaigns for the Lexus NX300H across model years 2015 to 2020. Each recall applies only to certain vehicles, so enter your VIN at nhtsa.gov/recalls to see if yours is affected.
Do you repair the Lexus NX300H in Phoenix?
Yes. EZ Swap LLC repairs and maintains Lexus vehicles including the NX300H, at 9050 N 9th St in Phoenix. Call or text (602) 246-9063 for an appointment.
Is a pre-purchase inspection worth it for a used Lexus NX300H?
Yes. An inspection checks the engine, transmission, brakes, suspension, A/C and electrical system, and scans for stored codes, so you know the real condition before you buy.
How often should I service my Lexus NX300H in Phoenix?
Follow the severe-service schedule in your owner's manual, since heat and stop-and-go driving count as severe use. Test the battery before summer and inspect brakes and tires regularly.
More Lexus Models We Service
Source: public complaint and recall records from the National Highway Traffic Safety Administration (nhtsa.gov). Counts reflect reports filed and do not predict the condition of any individual vehicle.