Infiniti G35 Electrical System Problems

Source: NHTSA · Updated Sep 10, 2026 · 333 complaints analyzed

Owners have filed 333 complaints with NHTSA about electrical system problems on the Infiniti G35 across 8 model years. The 2003 model year has the most (220). The words owners use most often: “circuit board” (15% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Circuit board: mentioned in 51 of 333 complaints (15%)
  • Climate control: mentioned in 27 of 333 complaints (8%)
  • Audio finisher: mentioned in 24 of 333 complaints (7%)
  • Full blast: mentioned in 19 of 333 complaints (6%)

How much does it cost to fix?

Owners who wrote down what they paid or were quoted put the typical electrical system repair on the Infiniti G35 at $1,400, and half of them between $1,100 and $2,000.

Based on 23 NHTSA complaints about this problem alone that state a repair bill or quote (2008–2020), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.

At what mileage do electrical system problems happen?

Based on 275 complaints that reported the odometer reading.

Under 10k miles9 · 3%
10k–25k miles3 · 1%
25k–50k miles14 · 5%
50k–75k miles51 · 19%
75k–100k miles80 · 29%
100k–150k miles87 · 32%
150k+ miles31 · 11%

How serious are the reports?

Of 333 complaints, 5 mention a crash, 5 a fire.

Infiniti G35 electrical system complaints by model year

Peak: 2003, with 220 complaints
2002: 1200212003: 22020032202004: 412004412005: 242005242006: 162006162007: 202007202008: 102008102009: 120091

n = 333 complaints · Source: NHTSA

Model yearElectrical System complaintsShare of that yearMedian miles
2009 G35150%40,338
2008 G351011%89,000
2007 G352018%71,500
2006 G351611%111,000
2005 G352411%109,993
2004 G354117%96,500
2003 G3522041%90,000
2002 G35133%64,733

When owners reported it

Peak: 2011, with 49 complaints
2003: 120032004: 12005: 320052006: 12007: 520072008: 72009: 2820092010: 462011: 492011492012: 422013: 2320132014: 332015: 2620152016: 152017: 1020172018: 62019: 1220192020: 112021: 320212022: 52023: 320232024: 12025: 120252026: 1

n = 333 complaints · Source: NHTSA

Related recalls (1)

Electrical system:software; air bagsOct 7, 2008 · NHTSA campaign 08V521000 · 204,361 vehicles

Model years: 2007, 2008

Problem: Nissan is recalling 204,361 my 2007-2008 altima, altima hybrid, 350z, 350z roadster, my 2008 altima coupe, rogue, my 2009 murano, and infiniti my 2007-2008 g35 sedan, my 2008 g37 coupe and ex35 passenger vehicles equipped with continental automotive systems' occupant classification system (ocs) control units. A varistor in the ocs control unit located in the passenger seat cushion may have been manufactured out of specification. Under certain conditions, this could cause an interruption of signal between the ocs and the air bag control unit (acu).

Risk: This could result in the passenger air bag being suppressed which could fail to provide adequate protection in the event of a crash.

Fix: Dealers will test the signal between the ocs and acu systems using a special tool to check that it is functioning as designed. If necessary, the seat cushion (containing ocs hardware) will be replaced with a new one manufactured to specification. The recall began on november 4, 2008. Owners may contact nissan at 1-800-647-7261 or infiniti at 1-800-662-6200.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

The contact owns a 2007 Infiniti G35. The contact stated that the key was inoperable. The vehicle failed to move into the accessory position. The contact called a locksmith, who was unable to assist. The cylinder lock was fractured. The contact obtained a part from a junkyard. The vehicle was taken…

Received Apr 3, 2026 · NHTSA complaint 11729086

The fuel gauge in my Infiniti G35x is malfunctioning and does not show the correct fuel levels. As a result, my vehicle has unexpectedly run out of fuel multiple times, causing it to stop on the side of the road. This poses a significant safety risk as it can lead to sudden and dangerous situations…

Received Feb 20, 2025 · NHTSA complaint 11643935

Lock actuators on passenger side have NEVER worked, fuel pump stops working when filling up tank even though not nearly full (have to repush the pump in several times - sometimes it doesn’t let me fill up tank totally because it thinks it’s full), right headlights fog up and can't be polished…

Received Jan 16, 2024 · NHTSA complaint 11565679

The ignition switch will not return to selection 3 after cranking.

Received Aug 30, 2023 · NHTSA complaint 11541689

Fuel gauge in instrument cluster malfunctioned, inaccurately reading more than half full. This caused me to run out of gas on a public road. In addition to the risk of becoming a stationary road hazard, I lost power brakes and steering when the gas ran out which caused me to almost hit the car in…

Received Jul 12, 2023 · NHTSA complaint 11531873

Frequently asked questions

Do all Infiniti G35s have electrical system problems?

No. NHTSA has 333 owner complaints about electrical system for the Infiniti G35. Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the Infiniti G35 electrical system?

Yes: 1 safety recall list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.

How much does it cost to fix electrical system problems on the Infiniti G35?

Owners report a typical cost of $1,400 (half paid between $1,100 and $2,000), from 23 complaints that state a repair bill or quote, in 2026 dollars.

What do owners say about electrical system problems on the Infiniti G35?

The most frequent phrase is “circuit board”, in 51 of 333 complaints, followed by “climate control” (27).

Other Infiniti G35 problems

See all Infiniti G35 problems.