Looking for Lexus RX350 repair in Phoenix? We work on Lexus vehicles every day and cover the RX350 across model years 2007 to 2019, with honest diagnostics and quotes you approve before work begins.
To help RX350 owners know what to watch for, we reviewed public records from the National Highway Traffic Safety Administration (NHTSA). For these model years NHTSA has 1,277 owner complaints on file for the RX350 and 12 safety recall campaigns. The most-reported problem areas are engine (208), vehicle speed control (158), structure (142).
Most-Reported Lexus RX350 Problems
These problem areas come up most often in NHTSA owner complaints for the RX350 (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 | |
|---|---|---|---|
| Engine | 208 | 16% | |
| Vehicle Speed Control | 158 | 12% | |
| Structure | 142 | 11% | |
| Service Brakes | 138 | 10% | |
| Electrical System | 127 | 9% | |
| Steering | 118 | 9% | |
| Air Bags | 117 | 9% | |
| Power Train | 97 | 7% |
Engine
208 of the 1,277 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.
Vehicle Speed Control
158 of the 1,277 complaints (12%) mention vehicle speed control (throttle and cruise control). Speed control complaints involve the throttle, cruise control and related sensors. We scan for stored codes and test the throttle system and sensors to find the actual cause instead of guessing. See our check engine light diagnostics and auto repair pages.
Structure
142 of the 1,277 complaints (11%) mention body, doors and latches. Latch and body complaints affect security and safety. We inspect and repair door, hood and trunk hardware. See our auto repair page.
Lexus RX350 Complaints by Model Year
The RX350 model years with the most NHTSA complaints on file are 2007, 2008, 2010. 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 | |
|---|---|---|
| 2007 | 225 | |
| 2008 | 196 | |
| 2009 | 131 | |
| 2010 | 171 | |
| 2011 | 54 | |
| 2012 | 45 | |
| 2013 | 78 | |
| 2014 | 27 | |
| 2015 | 62 | |
| 2016 | 86 | |
| 2017 | 93 | |
| 2018 | 44 | |
| 2019 | 65 |
Lexus RX350 Check Engine Codes
NHTSA owner complaints rarely cite specific trouble codes for the RX350, 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 RX350? 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 RX350 Safety Recalls
NHTSA lists 12 recall campaigns for the RX350 in these model years, most often involving service brakes, hydraulic, fuel system, gasoline, vehicle speed control. 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.
- 2021 recall, Fuel System, Gasoline (campaign 21V043000): Toyota Motor Engineering & Manufacturing (Lexus) is recalling certain 2019 Lexus RX350 and 2021 RX350 vehicles. The transport hook may not have been removed prior to sale.
- 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,...
- 2018 recall, Air Bags (campaign 18V085000): Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2016 Toyota Prius and Lexus RX 350, RX 350 F Sport, RX 450h F Sport and RX 450h vehicles and 2015-2016 Lexus NX 200T, NX Turbo and NX 300h vehicles.
- 2018 recall, Service Brakes, Hydraulic (campaign 18V211000): Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018 Toyota Camry and Highlander vehicles, 2017 Toyota Sienna and Tacoma vehicles and 2017 Lexus RX350 vehicles.
- 2016 recall, Air Bags (campaign 16V053000): Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2016 Lexus RX350 and RX450h vehicles manufactured November 16, 2015, to December 23, 2015.
Serious Incident Reports
Of the NHTSA complaints on file for the RX350, 182 involved a crash, 29 involved a fire, 112 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 RX350 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 RX350 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 RX350 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 RX350, a pre-purchase inspection shows what the paperwork does not.
Lexus RX350 Services at EZ Swap LLC
Get the details on our Phoenix Lexus RX350 repair service, or choose a service below.
Lexus RX350 FAQ
What are the most common problems with the Lexus RX350?
Based on NHTSA owner complaints, the most-reported problem areas for the Lexus RX350 are engine (208), vehicle speed control (158), structure (142). Complaint counts reflect reports filed, not the share of vehicles affected.
Which RX350 model years have the most complaints?
The RX350 model years with the most NHTSA complaints on file are 2007, 2008, 2010. Older years have had longer to collect reports, so inspect any specific vehicle before buying.
What check engine codes are common on the Lexus RX350?
NHTSA complaints rarely cite specific codes for the Lexus RX350. 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 RX350 have any safety recalls?
NHTSA lists 12 recall campaigns for the Lexus RX350 across model years 2007 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 RX350 in Phoenix?
Yes. EZ Swap LLC repairs and maintains Lexus vehicles including the RX350, 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 RX350?
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 RX350 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.