Looking for Infiniti Q70L repair in Phoenix? We work on Infiniti vehicles every day and cover the Q70L across model years 2015 to 2019, with honest diagnostics and quotes you approve before work begins.
To help Q70L owners know what to watch for, we reviewed public records from the National Highway Traffic Safety Administration (NHTSA). For these model years NHTSA has 20 owner complaints on file for the Q70L and 2 safety recall campaigns. The most-reported problem areas are power train (7), air bags (5), steering (3).
Most-Reported Infiniti Q70L Problems
These problem areas come up most often in NHTSA owner complaints for the Q70L (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 | |
|---|---|---|---|
| Power Train | 7 | 35% | |
| Air Bags | 5 | 25% | |
| Steering | 3 | 15% | |
| Vehicle Speed Control | 3 | 15% | |
| Electrical System | 2 | 10% | |
| Visibility/Wiper | 2 | 10% | |
| Engine | 1 | 5% | |
| Exterior Lighting | 1 | 5% |
Power Train
7 of the 20 complaints (35%) 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.
Air Bags
5 of the 20 complaints (25%) mention airbags and seat belts. Airbag and restraint issues are often tied to open safety recalls, which are repaired by the manufacturer at no cost to you. Check your VIN on NHTSA's recall lookup first, and we can help with related warning lights and diagnostics. See our auto repair page.
Steering
3 of the 20 complaints (15%) mention steering. Steering complaints deserve prompt attention. We inspect steering components and alignment so the car tracks straight and responds predictably. See our suspension & alignment page.
Infiniti Q70L Complaints by Model Year
The Q70L model years with the most NHTSA complaints on file are 2015, 2016, 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 | |
|---|---|---|
| 2015 | 12 | |
| 2016 | 3 | |
| 2018 | 3 | |
| 2019 | 2 |
Infiniti Q70L Check Engine Codes
NHTSA owner complaints rarely cite specific trouble codes for the Q70L, 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 Infiniti.
| 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 Q70L? 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.
Infiniti Q70L Safety Recalls
NHTSA lists 2 recall campaigns for the Q70L in these model years, most often involving power train, back over prevention. 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.
- 2024 recall, Power Train (campaign 24V470000): Nissan North America, Inc. (INFINITI) is recalling certain 2011-2013 M56, 2012-2013 M35 Hybrid, 2014-2018 Q50, Q70 Hybrid, 2014-2019 Q70, and 2015-2019 Q70L two-wheel drive vehicles. The driveshaft can fatigue and break.
- 2019 recall, Back Over Prevention (campaign 19V654000): Nissan North America, Inc. (Nissan) is recalling certain 2018-2019 Nissan Altima, Armada, Frontier, Kicks, Leaf, Maxima, Murano, NV, NV200, Pathfinder, Rogue, Rogue Sport, Sentra, Titan, Titan Diesel, Versa Note and Versa Sedan vehicles,...
Serious Incident Reports
Of the NHTSA complaints on file for the Q70L, 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 Infiniti Q70L Reliable in Phoenix
Arizona heat is the hardest test a Infiniti will face. Batteries, belts, hoses, tires and engine oil all wear faster here, and a Q70L 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 Q70L 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 Infiniti Q70L, a pre-purchase inspection shows what the paperwork does not.
Infiniti Q70L Services at EZ Swap LLC
Get the details on our Phoenix Infiniti Q70L repair service, or choose a service below.
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 →Infiniti Q70L FAQ
What are the most common problems with the Infiniti Q70L?
Based on NHTSA owner complaints, the most-reported problem areas for the Infiniti Q70L are power train (7), air bags (5), steering (3). Complaint counts reflect reports filed, not the share of vehicles affected.
Which Q70L model years have the most complaints?
The Q70L model years with the most NHTSA complaints on file are 2015, 2016, 2018. Older years have had longer to collect reports, so inspect any specific vehicle before buying.
What check engine codes are common on the Infiniti Q70L?
NHTSA complaints rarely cite specific codes for the Infiniti Q70L. 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 Infiniti Q70L have any safety recalls?
NHTSA lists 2 recall campaigns for the Infiniti Q70L across model years 2015 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 Infiniti Q70L in Phoenix?
Yes. EZ Swap LLC repairs and maintains Infiniti vehicles including the Q70L, 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 Infiniti Q70L?
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 Infiniti Q70L 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 Infiniti 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.