Infiniti G35 Reliability — Best and Worst Years by the Data

Quick answer

The 2003 draws 12.31 complaints per run and the 2008 3.33, a 3.7-fold gap within the same model. Half of all complaints arrive by 7 years of age, so 81.9% land after the 4-year basic warranty ends. The system owners report most is Electrical System, with 231 complaints, typically at 8.2 years.

Infiniti G35 years to avoid — and the best ones

FIG.01·Infiniti G35 — complaint rate by model year
Model year	Per run	Complaints	Runs	Enough history?
2008	3.33	80	24	yes
2004	4.88	195	40	yes
2003	12.31	443	36	yes

ROWS 3·SOURCE NHTSA complaints, grouped by VIN production run

Does the market discount it? In our listings a 2003 G35 asks a median $6,400, against $4,000 for a 2004, the next model year: 60% more, so the price shows no discount for its complaint record.

Among the 3 Infiniti G35 years with enough history, the three to walk away from are 2003, 2004, 2008; the three worth hunting are 2008, 2004, 2003.

When it starts to break

FIG.02·Infiniti G35 — age at failure
Age at failure	Complaints	Running total	Warranty
0 years	46	6.9%	covered
1 year	27	11%	covered
2 years	17	13.6%	covered
3 years	30	18.1%	covered
4 years	29	22.5%	you pay
5 years	47	29.6%	you pay
6 years	75	40.9%	you pay
7 years	91	54.6%	you pay
8 years	71	65.3%	you pay
9 years	61	74.5%	you pay
10 years	33	79.5%	you pay
11 years	52	87.3%	you pay
12 years	37	92.9%	you pay
13 years	20	95.9%	you pay
14 years	16	98.3%	you pay
15 years	11	100%	you pay

ROWS 16·SOURCE NHTSA complaints with incident dates

Basic warranty on this car is 4 years / 50,000 miles. Only 18.1% of reported failures happen inside it — the remaining 81.9% come out of the owner's pocket. Powertrain cover (6 years / 70,000 miles) reaches further, but it only covers the engine and transmission, which account for about 27% of the complaints here.

What actually fails — and at what age

On the Infiniti G35, the early trouble is Service Brakes — reported at around 4 years, so a car still under warranty is the one to check for it. What waits further out is Electrical System at 8.2 years — past every basic warranty, and the bill lands on whoever owns the car then.

FIG.03·Infiniti G35 — what fails and when
System	Complaints	Typical age	Crash	Fire
Electrical System	231	8.2 yrs	2	3
Engine	108	10.5 yrs	3	3
Engine And Engine Cooling	85	6.4 yrs	1	3
Air Bags	69	7.6 yrs	14	—
Service Brakes	68	4 yrs	9	1
Visibility	60	7.3 yrs	1	—
Exterior Lighting	57	6.8 yrs	—	—
Equipment	50	5.5 yrs	1	—

ROWS 8·SOURCE NHTSA complaints

What else in this class

6 models share the G35's vehicle class. Per production run, the Toyota Corolla draws 5.16, the Lexus IS 1.31 and the BMW M3 1.49, against 7.26 for the G35. That is the most complaints of the group.

FIG.05·Infiniti G35 — rivals in the same class
Same class as the G35	Complaints on record	Recall campaigns	Years built
Toyota Corolla	12,389	219	1981–2026
Lexus IS	47	118	2001–2026
BMW M3	565	78	1988–2026
Acura TLX	893	41	2015–2026
Ford Focus	22,576	138	2000–2026
Subaru WRX	290	17	2015–2026

ROWS 6·SOURCE NHTSA complaints and recall campaigns

The table shows totals on record; the rates per production run are in the sentence above.

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Everything on the Infiniti G35

Recalls19 campaigns Fuel economy20 mpg best Common problems876 complaints Check a VINAgainst this exact build DimensionsSize, weight, generations Cargo space15 cu ft Used prices491 listings What yours is worthValue by year & mileage Insurance costEstimated per year Window stickerOriginal Monroney label Decode a VINWhat each character means About this car2003–2009

Frequently asked questions

Is the Infiniti G35 reliable?

By complaints per production run it is worse than typical: 7.26 against 3.73 for the average car, and more than each of the 3 class rivals we compared.

Which G35 years should you avoid?

By complaints per production run, 2003, 2004, 2008. The cleanest years old enough to judge are 2008, 2004, 2003. Years newer than 6 are left out: complaints keep arriving for years after a car is sold.

When do G35 problems usually start?

Half of all complaints arrive by 7 years of age. The most reported system is Electrical System, typically at 8.2 years, followed by Engine.

Will the warranty cover G35 problems?

Mostly not: basic cover is 4 years / 50,000 miles, and only 18.1% of reported failures fall inside it. Powertrain cover lasts longer, but engine and transmission make up about 27% of the complaints here.

Is the G35 more reliable than the Toyota Corolla?

No: 7.26 complaints per production run for the G35 against 5.16 for the Toyota Corolla.

Complaint records from NHTSA, grouped by VIN production run (characters 1–11). Rates, age-at-failure and warranty coverage computed by ForCar. Model years newer than 6 years are excluded from rankings — complaints accumulate for a decade (how we measure). Last updated Nov 2026. — ForCar Reviewed by Denis Kataev, founder of ForCar.

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