EZ Swap LLC services the Toyota Scion IQ in Phoenix, AZ, covering model years 2011 to 2015. If your Scion IQ 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 Scion IQ owners know what to watch for, we reviewed public records from the National Highway Traffic Safety Administration (NHTSA). For these model years NHTSA has 13 owner complaints on file for the Scion IQ and 0 safety recall campaigns. The most-reported problem areas are visibility (3), power train (2), wheels (2).
Most-Reported Toyota Scion IQ Problems
These problem areas come up most often in NHTSA owner complaints for the Scion IQ (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 | |
|---|---|---|---|
| Visibility | 3 | 23% | |
| Power Train | 2 | 15% | |
| Wheels | 2 | 15% | |
| Electrical System | 2 | 15% | |
| Engine | 1 | 7% | |
| Air Bags | 1 | 7% | |
| Tires | 1 | 7% | |
| Fuel System, Gasoline | 1 | 7% |
Visibility
3 of the 13 complaints (23%) mention lighting and visibility. Lights, wipers and visibility items are quick to fix and are on every rideshare inspection checklist. We check them as part of our inspection prep. See our rideshare inspection prep page.
Power Train
2 of the 13 complaints (15%) mention the powertrain. Powertrain complaints can range from rough shifting to loss of drive. We road test, scan for stored codes and inspect fluids before recommending any repair. See our auto repair page.
Wheels
2 of the 13 complaints (15%) mention tires and wheels. Tire and wheel complaints are often about wear, vibration or pressure warnings. We check tires, balance and alignment, which matters in Phoenix where heat accelerates tire wear. See our suspension & alignment page.
Toyota Scion IQ Complaints by Model Year
The Scion IQ model years with the most NHTSA complaints on file are 2014, 2013, 2012. 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 | |
|---|---|---|
| 2012 | 3 | |
| 2013 | 4 | |
| 2014 | 6 |
Toyota Scion IQ Check Engine Codes
NHTSA owner complaints rarely cite specific trouble codes for the Scion IQ, 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 Toyota.
| 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 Scion IQ? 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.
Serious Incident Reports
Of the NHTSA complaints on file for the Scion IQ, 1 involved a crash, 1 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 Toyota Scion IQ Reliable in Phoenix
Arizona heat is the hardest test a Toyota will face. Batteries, belts, hoses, tires and engine oil all wear faster here, and a Scion IQ 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 Scion IQ 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 Toyota Scion IQ, a pre-purchase inspection shows what the paperwork does not.
Toyota Scion IQ Services at EZ Swap LLC
Get the details on our Phoenix Toyota Scion IQ repair service, or choose a service below.
Rideshare Inspection Prep
Get approved for Uber, Lyft and more.
Details →Auto Repair
All makes and models, from domestic trucks to imports.
Details →Suspension & Alignment
Shocks, struts, alignment and steering.
Details →Oil Change & Maintenance
Oil, filters, fluids, tires and scheduled service.
Details →Car A/C Repair
Phoenix heat demands cold air.
Details →Pre-Purchase Inspection
Know the car before you buy it.
Details →Toyota Scion IQ FAQ
What are the most common problems with the Toyota Scion IQ?
Based on NHTSA owner complaints, the most-reported problem areas for the Toyota Scion IQ are visibility (3), power train (2), wheels (2). Complaint counts reflect reports filed, not the share of vehicles affected.
Which Scion IQ model years have the most complaints?
The Scion IQ model years with the most NHTSA complaints on file are 2014, 2013, 2012. Older years have had longer to collect reports, so inspect any specific vehicle before buying.
What check engine codes are common on the Toyota Scion IQ?
NHTSA complaints rarely cite specific codes for the Toyota Scion IQ. 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 Toyota Scion IQ have any safety recalls?
NHTSA lists 0 recall campaigns for the Toyota Scion IQ across model years 2011 to 2015. 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 Toyota Scion IQ in Phoenix?
Yes. EZ Swap LLC repairs and maintains Toyota vehicles including the Scion IQ, 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 Toyota Scion IQ?
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 Toyota Scion IQ 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 Toyota 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.