Infiniti Q45 Reliability by YearBest & worst years, problems & recalls — NHTSA data
Comparing used Infiniti Q45 options? We analyzed 8 model years (2000–2007) using real NHTSA complaint and recall data so you can spot stronger years, avoid riskier ones, and know what to inspect before buying.
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Model-year trends show patterns — they can't tell you whether this car was crashed, flooded, or rolled back. A VIN check can.
- Accident & damage history
- Odometer rollback records
- Open recalls & title brands
Based on NHTSA complaint data, the Infiniti Q45 has 61 owner complaints and 10 safety recalls across model years 2000–2007. The most reported issue area is ELECTRICAL SYSTEM. 2002 drew the most complaints; 2005 drew the fewest.
- Make
- Infiniti
- Model
- Q45
- Model years analyzed
- 2000–2007 (8 years)
- Total NHTSA complaints
- 61
- Safety recall campaigns
- 10
- Crash-related complaints
- 4
- Fire-related complaints
- 0
- Worst model year (by complaints)
- 2002 (22 complaints)
- Best model year (fewest complaints)
- 2005 (4 complaints)
- Top reported issue area
- ELECTRICAL SYSTEM
- Reliability signal
- Average
By model year
Infiniti Q45: which years to avoid & which to buy
Based on total NHTSA owner complaints per model year. Higher complaint counts indicate a riskier year to buy used — lower counts suggest a cleaner reliability record.
These years have the most owner complaints. Inspect carefully and always run a VIN check.
These years have the fewest owner complaints on record — lower risk starting points.
Crash test ratings
NHTSA NCAP crash test ratings
New Car Assessment ProgramNCAP crash tests measure how well a vehicle protects occupants in controlled frontal crash, side crash, and rollover scenarios. Stars are awarded per category (5 = safest). These laboratory results are independent of owner complaints and are performed by NHTSA engineers on new production vehicles.
Source: nhtsa.gov/ratings
What the complaint data suggests
AverageThe INFINITI Q45 has 61 NHTSA complaints and 10 recalls on record. 4 complaints involve crash-related incidents. This data reflects owner-reported issues submitted to the National Highway Traffic Safety Administration.
- 61 total complaints filed with NHTSA
- 10 federal recall campaigns
- 4 crash-related complaints on record
- Review NHTSA complaint history for the most-reported components
- Check recall completion status at nhtsa.gov/recalls
- Verify service records for frequently complained components
Consult the by-year breakdown to identify model years with elevated complaint rates.
Consult the by-year breakdown to identify model years with fewer reported issues.
- Run a VIN check on the specific vehicle you are considering
- Verify all open recalls are completed at nhtsa.gov/recalls
- Request service records for the most-reported complaint components
- Have a certified mechanic inspect the vehicle before purchase
Problems by model year (best vs. worst)
Source: NHTSA public complaints database. Updated: Sep 2026
Safety recalls
NHTSA safety recalls
10 recalls foundSafety recalls are mandatory repair campaigns ordered by NHTSA when a vehicle defect poses an unreasonable risk to safety. Manufacturers are required to fix recalled vehicles free of charge. Always verify open recalls before buying a used car.
AIR BAGS:SIDE/WINDOW
EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH
EXTERIOR LIGHTING:BRAKE LIGHTS
WHEELS
AIR BAGS:SIDE/WINDOW
AIR BAGS:SIDE/WINDOW
EXTERIOR LIGHTING:BRAKE LIGHTS
CHILD SEAT:LATCH STRAP
ENGINE AND ENGINE COOLING
WHEELS
Source: NHTSA Recalls Database. Data covers model years 2000–2007. Always run a VIN-specific check below for the most up-to-date open recall status.
Common problems
What goes wrong most often
The vehicle systems owners complain about most, ranked from all 61 NHTSA complaints — these are the areas to inspect first on a used car.
Owner complaints
NHTSA complaint reports
61 totalThese are consumer-submitted safety complaints filed directly with NHTSA. Each complaint describes a real owner's experience. Complaints flagged as crash-related or fire-related are highlighted.
TL* THE CONTACT OWNS A 2004 INFINITI Q45. THE CONTACT STATED THAT THE VEHICLE'S FRAME WAS CORRODED. THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 11V244000 (STEERING, SUSPENSION). THE MANUFACTURER STATED THAT THEY WOULD NOT PAY FOR THE REPAIR. THE DEALER WAS NOT CONTACTED. THE CONTACT KEPT THE VEHICLE PARKED AND HAD NOT DRIVEN IT IN OVER TWO YEARS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN.
TL* THE CONTACT OWNS A 2004 INFINITI Q45. THE CONTACT STATED THAT WHILE DRIVING AT 40 MPH, THE ENGINE STALLED WHILE THE SERVICE ENGINE SOON WARNING LIGHT AND ANOTHER UNKNOWN LIGHT ILLUMINATED. THE VEHICLE WAS ABLE TO RESTART. THE CONTACT STATED THAT THE VEHICLE FAILED TO ACCELERATE AFTER THE FAILURE OCCURRED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE CAM POSITION SENSOR FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, HOWEVER THE FAILURE RECURRED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 111,000. THE VIN WAS NOT AVAILABLE.
I WAS DRIVING AND DASHBOARD LIGHTS CAME ON, THEN VEHICLE CUT OFF ON THE HIGHWAY. I ASSUMED IT WAS A BAD ALTERNATOR, BUT IT WAS A DEFECTIVE CRANK SENSOR. *TR
MY LOW BEAM HEADLAMP SYSTEM HAS NOW FAILED AT TWO SEPARATE TIMES, BOTH DURING NIGHTTIME DRIVING. THE FIRST WAS ON NOVEMBER 2, 2009, AT 37,600 MILES, THE LEFT HID BALLAST FAILED; NISSAN REPAIRED THE FAILURE UNDER WARRANTY ALTHOUGH ITS TIME-PORTION HAD EXPIRED. THE SECOND FAILURE WAS AT 47,600 MILES ON DECEMBER 1, 2011. NISSAN/INFINITI CONSUMER AFFAIRS WERE TOLD AND ACKNOWLEDGED THAT MILEAGE WARRANTY WAS NO-WHERE-NEAR EXPIRED - BUT TIME HAD - YET, TALKED AS THOUGH THEY WOULD HELP WITH THE REPAIR. THE QUID-PRO-QUO WAS THAT I GET AN INFINITI DEALER TO VERIFY PROBLEM AND COST TO REPAIR. AT MY COST OF $125.88 THE INFINITI DEALER AGREED THE RIGHT BALLAST WAS NOW BAD; COST TO REPAIR APPROXIMATELY $1100. NISSAN CONSUMER AFFAIRS WERE INSTRUCTED (ACCORDING TO CA) BY A HIGHER ECHELON OF NISSAN NOT TO REPAIR. CA DID AGREE TO REFUND MY DEALER COST OF $125.88. CONCLUSION: IN 2004 THIS WAS NISSAN/INFINITI'S PREMIUM PRODUCT. THIS CAR WAS EARLIER REPORTED TO NHTSA BECAUSE THE FORE-AFT POWER FUNCTION OF THE DRIVER'S SEAT FAILED AT 42,170 MILES AND NISSAN WOULD ACCEPT NO RESPONSIBILITY. SURELY THE NHTSA MUST REASONABLY THINK THAT FAILURE OF A DRIVER'S SEAT IN ITS REARMOST POSITION AND TWO FAILURES OF THE LOW-BEAM HEADLAMP SYSTEM COULD EASILY PLACE ANY DRIVER AND HIS/HER PASSENGERS IN A LIFE THREATENING SITUATION. *TR
2004 INFINITI Q45 LEMON THIS AUTOMOBILE HAS AN IN-SERVICE DATE OF 12-17-04, PURCHASED BY ME ON 02-08-08 AT 26,670 MILES WITH 10 MONTHS REMAINING ON THE TIME WARRANTY THAT'S EXPIRED. IT WAS RETURNED TO MAJOR INFINITI ON 09-29-10 WITH 42,171 MILES ^0,000 WARRANTY) AND AN INOPERATIVE DRIVER'S SEAT (NO REAR/FORWARD FUNCTION) FIXED IN AN UNSAFE POSITION FOR ME AND IMPOSSIBLE FOR MY WIFE - (7) INCHES SHORTER. AFTER DIAGNOSIS, MAJOR INFORMED ME THE REPAIR COST WOULD BE $1300 AND THAT INFINITI REFUSED ANY WARRANTY RESPONSIBILITY. I CALLED NISSAN CONSUMER AFFAIRS AND SPOKE TO EMILY WHO GAVE ME A FILE # [XXX] AND TOLD ME A REGIONAL SPECIALIST WOULD CALL WITHIN TWO DAYS, NEXT DAY, SEPTEMBER 30, I CALLED NCA AGAIN AND TALKED TO [XXX], REGIONAL SPECIALIST. SHE TOLD ME I COULDN'T HAVE AN ANSWER ON NCA COVERING THE SEAT PROBLEM UNTIL MONDAY 10-4-10. OCTOBER 1, I AUTHORIZED ORDERING OF THE SEAT ADJUSTER ASSEMBLY AS I HAD NO OPTION SINCE OUR OTHER CAR WOULD BE UNAVAILABLE AFTER MONDAY. [XXX] CALLED OCTOBER 4 AND SAID NISSAN WOULD DO NOTHING TOWARD A WARRANTY REPAIR. MY COMPLAINT: FIRST, AN INOPERATIVE DRIVER'S SEAT SHOULD QUALIFY AS A SAFETY-RELATED DEFECT. MY WIFE AND I DRIVE WITH A 9 INCH HEIGHT DIFFERENTIAL AND WITH AN INOPERATIVE SEAT - AS IT WAS - SHE COULDN'T DRIVE WITHOUT PERCHING ON THE VERY FRONT EDGE. WITHOUT A SEAT BELT. I HAD NO OPTION BUT TO REPAIR THIS SEAT OR ABANDON ANY NOTION OF DRIVING OUT OF TOWN. IF WE DROVE OUT OF CELL PHONE COVERAGE AND I BECAME UNABLE TO DRIVE, AS IN AN EMERGENCY, MY WIFE WOULD BE COMPELLED TO DRIVE US WITHOUT THE SECURITY OF ADEQUATE SEATING AND SEAT RESTRAINTS. SECOND, AND ANOTHER REASON MY COMPLAINT, THIS CAR HAS A HISTORY OF ELECTRICAL PROBLEMS: CD @ 28395; CRUISE CONTROL @ 32442; BATTERY@35193; HEADLIGHT BALLAST AND LAMP @ 37694. UNRELATED BRAKE REPLACEMENT @ 36396. A DRIVER'S SEAT SHOULD QUALIFY AS SAFETY-RELATED. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).*TR
DT:THE CONSUMERS VEHICLE HAS A CRUISE CONTROL THAT HAS A CHIP THAT IF A CAR GETS TOO CLOSE TO IT SLOWS DOWN. WHEN DRIVING ON THE HIGHWAY AND SOMEBODY CUTS THE CONSUMER OFF IT FEELS LIKE SOMEONE STEPPED ON THE BRAKE DUE TO AN ABRUPT DROP IN SPEED. CONTACTED MANUFACTURER, THEY SAID CAN'T SEPARATE THEM BECAUSE IT ONLY SHUTS DOWN CRUISE CONTROL OR IT GOES INTO THE ICC. THE DEALERSHIP SAYS THEY HAD MANY COMPLAINTS, BUT MANUFACTURER SAYS IT IS NOT A PROBLEM. *AK *JB
Read 14 more owner reports
THE CONSUMER BELIEVES THAT THE LASER CONTROLLED CRUISE CONTROL COULD BE A POTENTIAL SAFETY ISSUE TO AN UNWARY DRIVER. *NM THE SYSTEM DOES NOT WORK IN THE RAIN OR WHEN DRIVING INTO THE SUN AT SUNSET. THE SYSTEM ACTIVATES THE BRAKES WHILE PASSING OTHER VEHICLE AND THERE IS NO AUDIBLE ACKNOWLEDGEMET WHEN THE SYSTEM SLOW DOWN FOR A SLOWER VEHICLE. *NM
TL* - THE CONTACT STATED THAT DURING 2006 THEY REPLACED THE ALTERNATOR IN HER 2001 INFINITI Q45. THE CONTACT IS CONCERNED BECAUSE SHE WAS INFORMED OF A RECALL IN CANADA FOR A SIMILAR FAILURE. THE CURRENT ODOMETER READING IS 79000. *NM UPDATED 03/02/07. *JB
VEHICLE EXPERIENCES A TOTAL ELECTRICAL SHUTDOWN. FIRST OCCASION WAS AFTER A 6 HOUR DRIVE AND SHUT DOWN IN THE PARKING LOT. VEHICLE WAS TRANSPORTED 100 MILES TO NEAREST INFINITY DEALERSHIP, ALTERNATOR CHECKED OUT, RECHARGED THE BATTERY AND RETURNED THE VEHICLE. SECOND EXPERIENCE OCCURRED 1 MONTH LATER WHILE DRIVING THE VEHICLE AGAIN EXPERIENCED TOTAL SHUTDOWN, ALL LIGHTS ON DASH CAME ON, ENGINE SHUTDOWN. VEHICLE TOWED TO INFINITY DEALERSHIP, REPLACED ALTERNATOR AND BATTERY, AS OF THIS DATE CONTINUING TO SEARCH FOR CAUSE. *JB
CHILD SAFETY SEAT FAILURE, HARNESS ADJUSTER FAILS TO PROPERLY TIGHTEN. *BF *SC *JB
WHEN THE CONSUMER PLACED THE VEHICLE IN THE REVERSE GEAR THE VEHICLE ACCELERATED SUDDENLY AND CAUSED AN ACCIDENT. *AK *CB *NLM
THE CIRCUIT BOARD FOR CRANK POSITION SENSOR AND CAM POSITION SENSOR HAVE IMPROPER SOLDER JOINTS. THIS HAS CAUSED THE SERVICE ENGINE LIGHT TO COME ON, THE ENGINE MAY NOT START, POWER REDUCES, ENGINE STALLS AT A TRAFFIC LIGHT OR WHILE IN MOTION, ON A CITY STREET OR HIGHWAY OR WHILE MAKING A TURN. THIS IS ALSO A COMMON PROBLEM WITH THE 2002 INFINITI M45, Q45; 2003 INFINITI I35, M45; 2003 NISSAN ALTIMA, MAXIMA, MURANO, SENTRA. THERE ARE 11 CONSUMER COMPLAINTS, 3 INVESTIGATIONS AND 33 SERVICE BULLETINS REGARDING THIS ISSUE WITH THE 2003 Q45. INFINITI/NISSAN RECALL # 03V455000
TL* THE CONTACT OWNS A 2003 INFINITI Q45. WHILE DRIVING 35 MPH, THE VEHICLE STALLED AND THE SERVICE ENGINE WARNING INDICATOR ILLUMINATED. THE CONTACT WAS ABLE TO RESTART THE VEHICLE AFTER SEVERAL ATTEMPTS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE CAMSHAFT POSITION SENSOR FAILED AND NEEDED REPLACEMENT. THE VEHICLE WAS NOT REPAIRED. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 03V455000 (ENGINE AND ENGINE COOLING). THE FAILURE MILEAGE WAS APPROXIMATELY 150,000.
TAMARA RECALLED MY SEATBELT LIGHT HAS BEEN ON FOR THE LAST YEAR. I WERE TOLD BY THE INFINITY DEALER THAT MY CAR WAS NOT RECALL FOR THE SEATBELT. THE SEATBELT WARNING LIGHT STAYS ON CONSTANTLY IN THE NAVIGATION SYSTEM AND A LITTLE BLANKING ICON. I AM TOLD BY THE DEALER THAT I AM RESPONSIBLE FOR REPAIRS
TL* THE CONTACT OWNS A 2003 INFINITI Q45. WHILE DRIVING VARIOUS SPEEDS, THE ENGINE STALLED WITHOUT WARNING AND ALL POWER WAS LOST. AFTER SEVERAL ATTEMPTS, THE VEHICLE WAS ABLE TO RESTART. THE FAILURE RECURRED RANDOMLY. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE FAILURE COULD NOT BE DETERMINED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 61,000. UPDATED 11/29/16*LJ THE CONSUMER HAS SINCE TRADED THE VEHICLE. UPDATED 12/06/16.*JB
START CAR FIRST THING IN THE AM. DRIVING NORMAL. WITHIN 5 MILES ENGINE SHUTS OFF WITHOUT WARNING. LOOSE ALL POWER. NO CODE APPEARS. AUTO WILL NOT START. FINALLY STARTS AFTER 5 OR 6 TRIES. THIS PROBLEM HAS CONTINUED TO OCCUR EVERY TWO OR THREE DAYS OVER THE LAST SIX MONTHS. BUT AUTO STARTS IMMEDIATELY AFTER. AUTO AND TRANSMISSION ARE NOT PERFORMING PROPERLY. NOW THE ENGINE STALL WHILE DRIVING IS HAPPENING ON A DAILY BASIS. AUTO HAS BEEN CHECKED OUT AT GEORGE HARTE INFINITI, WEST HAVEN, CT AT LEAST FIVE TIMES. DEALERSHIP CLAIMS THEY CANNOT ADDRESS THE PROBLEM BECAUSE NO ERROR CODE APPEARS. OTHER THAN THIS PROBLEM, THIS AUTO IS IN EXCELLENT CONDITION AND SHOULD PERFORM SATISFACTORILY FOR MANY YEARS TO COME. THERE WAS A RECALL (INFINITI R3021) THAT ADDRESSED THESE EXACT PROBLEMS, BUT THE DEALER SERVICE MANAGER CLAIMED THAT THIS CAR WAS NOT INCLUDED. THIS PROBLEM IS A SERIOUS SAFETY HAZARD AND THERE SHOULD BE SOME WAY THIS CAN BE FIXED. SIMILAR, IF NOT EXACT, COMPLAINTS FOR THIS EXACT MODEL INFINITI HAVE BEEN POSTED ON THE INTERNET WITH OWNERS INDICATING OUTRAGEOUS FRUSTRATION WITH THE INFINITI MANUFACTURER. WHEN THERE ARE MULTIPLE COMPLAINTS INDICATING EXACT PROBLEMS, THE FAULT CERTAINLY LAYS WITH THE MANUFACTURER. IS THERE SOMETHING THAT CAN BE DONE?
I OWN A 2003 INFINITY Q45 AND WITHOUT WARNING THIS VEHICLE STALLS WHERE EVER IT WANTS AT A LIGHT WHILE YOU DRIVING ON A MAJOR HIGHWAY ON A MAJOR STREET NO WARNING WHAT SO EVER AND INFINITY IS AWARE OF THE PROBLEM BUT THEY ONLY WANT TO HELP CERTAIN VIN NUMBERS. I TOOK MY FAMILY SKIING TO SCRANTON PA AND ON INTERSTATE I80 THE CAR STALL WITHOUT WARNING MY ENTIRE FAMILY COULD HAVE BEEN KILLED. PLEASE DO SOMETHING ABOUT THIS IS A BIG ISSUE AND BEFORE SOMEONE GETS HURT OR KILLED SOMEONE SHOULD HELP. *TR
TL* THE CONTACT OWNS A 2003 INFINITI Q45. THE CONTACT STATED THAT WHILE DRIVING AT 30 MPH, A NOISE EMITTED FROM THE FRONT OF THE VEHICLE. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN DIAGNOSED THAT THE FAN BELT AND POWER STEERING BELT NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. IN ADDITION, THREE MONTHS LATER, THE VEHICLE FAILED TO START. THE VEHICLE WAS TAKEN BACK TO THE DEALER. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 92,000. THE VIN WAS UNAVAILABLE.
TL* THE CONTACT OWNS A 2003 INFINITI Q45. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, THE STEERING WHEEL SEIZED AND THERE WAS A SUDDEN LOSS OF POWER. THE VEHICLE WAS ABLE TO RESTART AND RESUMED TO NORMAL. THE FAILURE OCCURRED ON THREE OCCASIONS. THE DEALER REPAIRED THE VEHICLE BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 80,000 AND THE CURRENT MILEAGE WAS 97,000.
I HAVE A 2003 Q45 AND THE CAR HAS SHUT OFF WHILE DRIVING SEVERAL TIMES. THERE IS HAS IN THE CAR. I GET IT MAINTENANCE REGULARLY. ITS SHUT OFF WHILE DRIVING ON THE HIGHWAY PUTTING MY FAMILY AT RISK. ITS NOT SAFE TO DRIVE. AFTER DOING ONLINE SEARCHES I DETERMINED THAT A LOT OF PEOPLE ARE HAVING THIS SAME ISSUE WITH THIS MAKE AND MODEL. PLEASE RESEARCH THIS ISSUE BECAUSE I AM TERRIFIED TO DRIVE THIS CAR. IF THERE IS AN ISSUE WITH ELECTRONIC CHIP, INFINITI SHOULD HAVE TO REPLACE IT. THANK YOU *TR
Showing 20 of 61 total NHTSA complaints. Source: NHTSA Complaints Database
Check the exact car
Before you buy, check the exact Infiniti Q45
These pages show model-year patterns across 8 years. Enter a VIN to verify the exact vehicle's accident history, title brands, odometer records, and open recall status before purchase.
The basics
How to read this data
Complaints, recalls, investigations — here’s what each number actually tells you about a used Infiniti Q45, in plain English.
What is an NHTSA Complaint?
An NHTSA safety complaint is a report filed directly by a vehicle owner or driver describing a safety-related issue. Anyone can submit a complaint at NHTSA.gov. The number of complaints is a signal of how common a problem is — but complaints per model-year matter more than raw totals, since popular vehicles naturally receive more reports. The Infiniti Q45 has 61 complaints on record across 8 model years.
What is a Safety Recall?
A safety recall is a mandatory campaign issued by NHTSA when a vehicle component poses an unreasonable risk to safety or does not comply with federal motor vehicle safety standards. Unlike complaints (which are owner-reported), recalls are formally investigated and confirmed by regulators. Manufacturers must fix recalled vehicles free of charge. The Infiniti Q45 has 10 recall campaigns in the NHTSA database.
What Are Crash Complaints?
Crash complaints are NHTSA filings where the owner indicates a crash occurred as part of the incident. 4 of the Infiniti Q45's 61 complaints involved a crash. This metric is particularly important because it indicates how often defects resulted in actual collisions — a key safety signal beyond general reliability.
How Is the Reliability Verdict Calculated?
The reliability verdict (Average) is generated by analyzing the vehicle's total complaints, recall history, crash complaint ratio, fire complaint ratio, and top component failures relative to class averages. This verdict gives buyers a quick interpretation before they review year-level details and VIN-level history. It should be treated as one decision input, not a substitute for a VIN-specific report.
Why Do Newer Years Have Fewer Complaints?
Newer model years appear to have fewer complaints because there has been less time for owners to file them. Complaints accumulate over years of ownership. A 2020 model year vehicle will typically show fewer complaints than a 2015 model year even if it is less reliable — simply because fewer owners have had time to report issues. Focus on complaints per year of market presence when comparing across model years.
Fleet Data vs. Individual VIN
Everything on this page reflects aggregated data across all Infiniti Q45 vehicles on the road — not any specific car. Two Infiniti Q45 vehicles of the same year can have very different histories: one may have been in three accidents and have an open recall; another may be clean. A VIN check gives you the individual car's history: accidents, title brands, odometer records, service history, and real-time recall status.
What Are NHTSA Investigations?
When NHTSA receives a pattern of related safety complaints, it opens a formal investigation. A Preliminary Evaluation (PE) is the first stage — NHTSA determines if a safety defect may exist. If evidence is strong, it escalates to an Engineering Analysis (EA), which can result in a mandatory recall. The Infiniti Q45 has 0 investigations on record (0 active). Investigations listed above may have already led to the recalls shown on this page.
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By state
Check a Infiniti Q45 by state
Title-branding rules, flood-damage exposure, and salvage laws vary by state. Run a free VIN check or explore state-specific vehicle history guidance before buying a used Infiniti Q45.
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Keep researching before you buy
Compare brands and categories, then check the exact car's history by VIN.
Infiniti Q45 reliability — frequently asked questions
Is the Infiniti Q45 reliable?
Average. The Infiniti Q45 has 61 NHTSA owner complaints and 10 recall campaigns across model years. A commonly reported issue area is ELECTRICAL SYSTEM. Use year-level data as a pattern guide, then verify the exact car with a VIN check before purchase.
Which Infiniti Q45 years to avoid?
Years with the most NHTSA complaints: 2002 (22 complaints), 2004 (7 complaints), 2005 (4 complaints). Use these years as a shortlist for deeper inspection, and always run a VIN check on the exact vehicle before purchase.
What are the most common Infiniti Q45 problems?
Top reported issues: ELECTRICAL SYSTEM (11 complaints); ENGINE (8 complaints); EXTERIOR LIGHTING (7 complaints).
Does the Infiniti Q45 have recalls?
Yes — 10 NHTSA recall campaigns have been issued for the Infiniti Q45. Check nhtsa.gov/recalls or run a VIN check to see if your specific vehicle has open recalls.