EZ Swap LLC services the Lexus RX350L in Phoenix, AZ, covering model years 2018 to 2019. If your RX350L has a warning light, a strange noise or a safety recall question, our mechanics can diagnose it and give you a clear quote first.
To help RX350L owners know what to watch for, we reviewed public records from the National Highway Traffic Safety Administration (NHTSA). For these model years NHTSA has 60 owner complaints on file for the RX350L and 2 safety recall campaigns. The most-reported problem areas are service brakes (15), forward collision avoidance (13), fuel/propulsion system (13).
Most-Reported Lexus RX350L Problems
These problem areas come up most often in NHTSA owner complaints for the RX350L (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 | |
|---|---|---|---|
| Service Brakes | 15 | 25% | |
| Forward Collision Avoidance | 13 | 21% | |
| Fuel/Propulsion System | 13 | 21% | |
| Engine | 11 | 18% | |
| Electrical System | 9 | 15% | |
| Structure | 5 | 8% | |
| Air Bags | 4 | 6% | |
| Vehicle Speed Control | 4 | 6% |
Service Brakes
15 of the 60 complaints (25%) 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.
Forward Collision Avoidance
13 of the 60 complaints (21%) mention driver-assistance and stability systems. Driver-assistance and stability systems rely on sensors and software. We scan for stored codes and diagnose sensor and wiring faults. See our check engine light diagnostics page.
Fuel/Propulsion System
13 of the 60 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.
Lexus RX350L Complaints by Model Year
The RX350L model years with the most NHTSA complaints on file are 2019, 2018. 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 | |
|---|---|---|
| 2018 | 26 | |
| 2019 | 34 |
Lexus RX350L Check Engine Codes
NHTSA owner complaints rarely cite specific trouble codes for the RX350L, so we do not have a model-specific ranking to show. These are the check engine codes we see most often on vehicles in Phoenix heat, and any of them can show up on a Lexus.
| Code | What it means |
|---|---|
| P0420 | Catalyst efficiency below threshold (bank 1) Often a worn catalytic converter, but failing oxygen sensors or exhaust leaks can set it too. Can cause an emissions test failure. |
| P0300 | Random or multiple cylinder misfire Worn spark plugs, failing ignition coils, fuel or vacuum problems. Do not ignore a flashing check engine light. |
| P0171 | System too lean (bank 1) Often a vacuum leak, dirty MAF sensor, weak fuel delivery or a failing oxygen sensor. |
| P0455 | EVAP system large leak Missing or loose gas cap, or a disconnected or cracked vapor hose. |
| P0128 | Coolant temperature below thermostat regulating temperature Usually a thermostat stuck open. Fix it to restore efficiency and cabin heat. |
| P0442 | EVAP system small leak Loose or worn gas cap, cracked hose or purge or vent valve. |
| P0301 | Cylinder 1 misfire Commonly a bad spark plug or ignition coil on that cylinder. |
| P0401 | EGR flow insufficient Clogged EGR passages or a stuck EGR valve. |
Got a check engine light on your RX350L? A code is a clue, not a diagnosis, so we scan it and test the system before replacing anything. See our check engine light diagnostics.
Lexus RX350L Safety Recalls
NHTSA lists 2 recall campaigns for the RX350L in these model years, most often involving fuel system, gasoline. Recalls are repaired by the manufacturer at no charge to you, but each applies only to certain vehicles. Look up your VIN at nhtsa.gov/recalls.
- 2020 recall, Fuel System, Gasoline (campaign 20V682000): Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 4Runner, 2019-2020 Avalon, 2019 Corolla Hatchback, 2017-2019 Highlander, 2018-2020 Camry, 2020 Corolla, 2018-2019 Land Cruiser, 2017-2020 Tacoma, 2019-2020...
- 2020 recall, Fuel System, Gasoline (campaign 20V012000): Toyota Motor Engineering & Manufacturing (Toyota) recalled certain 2018-2019 4Runner, Highlander, Camry, Land Cruiser, Sequoia, Sienna, Tacoma and Tundra, and Lexus RC 300, RC 350, GS 350, GX 460, IS 300, LC 500, LS 500, LX 570, RX 350L,...
Serious Incident Reports
Of the NHTSA complaints on file for the RX350L, 13 involved a crash, 4 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 RX350L 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 RX350L 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 RX350L 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 RX350L, a pre-purchase inspection shows what the paperwork does not.
Lexus RX350L Services at EZ Swap LLC
Get the details on our Phoenix Lexus RX350L repair service, or choose a service below.
Brake Repair
Pads, rotors, calipers, fluid and brake lines.
Details →Check Engine Light Diagnostics
Scan, test and pinpoint the real cause.
Details →No-Start Diagnostics
Find out why it will not start.
Details →Oil Change & Maintenance
Oil, filters, fluids, tires and scheduled service.
Details →Car A/C Repair
Phoenix heat demands cold air.
Details →Lexus RX350L FAQ
What are the most common problems with the Lexus RX350L?
Based on NHTSA owner complaints, the most-reported problem areas for the Lexus RX350L are service brakes (15), forward collision avoidance (13), fuel/propulsion system (13). Complaint counts reflect reports filed, not the share of vehicles affected.
Which RX350L model years have the most complaints?
The RX350L model years with the most NHTSA complaints on file are 2019, 2018. Older years have had longer to collect reports, so inspect any specific vehicle before buying.
What check engine codes are common on the Lexus RX350L?
NHTSA complaints rarely cite specific codes for the Lexus RX350L. On Phoenix vehicles in general, we see P0420, P0300 misfires, P0171 lean conditions and EVAP leaks such as P0455 and P0442 most often. Bring yours in and we will scan and test it.
Does the Lexus RX350L have any safety recalls?
NHTSA lists 2 recall campaigns for the Lexus RX350L across model years 2018 to 2019. 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 RX350L in Phoenix?
Yes. EZ Swap LLC repairs and maintains Lexus vehicles including the RX350L, 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 RX350L?
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 RX350L 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.