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Infiniti · Known Issues

2008 Infiniti G35 Problems: 3 Known Issues

2008 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2008 Infiniti G35 has 3 documented known issues, with 1 rated critical. The most serious is OCS Varistor Defect Suppresses Passenger Airbag (Recall 08V521000) ($0-$0 repair). Across all issues with published estimates, repair costs range from $60 to $2,500. DIY maintenance guides at au7o.io.

In This Article

  • G35 Safety/Recalls1
  • G35 Interior1
  • G35 Body/Panels1
  • Recalls6
  • FAQ
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In This Article

  • Safety/Recalls1
  • Interior1
  • Body/Panels1
  • Recalls6
  • FAQ

All 3 Known Issues

Filter:
ALL YEARS200820072006200520042003

On the 2007-2008 Infiniti G35, a varistor inside the Occupant Classification System control unit, which sits in the front passenger seat cushion, was manufactured out of specification. Under certain conditions it interrupts the signal between the OCS and the airbag control unit. The airbag control unit interprets the lost signal by suppressing the passenger frontal airbag, so it will not deploy in a crash even with an adult properly seated. NHTSA campaign 08V521000 covers 2007-2008 G35 sedans along with the 2008 G37 Coupe, EX35, and a group of Nissan models — 204,361 vehicles in total. The recall began November 4, 2008.

Common Symptoms

  • Passenger airbag status light reads OFF with an adult seated
  • Airbag status indicator flickers between ON and OFF
  • Airbag warning light illuminated on the cluster
  • Seat classified as empty while occupied

How to Fix

Have the dealer test the OCS-to-ACU signal with the special tool called for by recall 08V521000 and replace the passenger seat cushion containing the OCS hardware if it fails, free of charge. Watch the passenger airbag status indicator on the console: if it shows OFF with a normally seated adult, the system is suppressing the bag right now. Remove aftermarket seat covers and anything stored under the passenger seat before diagnosing, since both interfere with the sensor mat and produce the same indication. Never bypass or unplug the OCS to clear the warning light — that removes the crash logic in both directions.

Typical repair cost:$0 - $0

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

On the 2006-2008 Infiniti G35, the dashboard topper material breaks down under sustained sun and heat, going soft and tacky to the touch before developing shiny patches, cracks, and chipping — typically first around the defroster vents and the instrument binnacle. Beyond the cosmetic damage the degraded surface becomes reflective, throwing glare onto the windshield that can be severe enough to obscure the driver's forward view in low sun. The defect is well documented across 2006-2008 G35 and M35 and 2008-2009 G37 vehicles and was the subject of class-action litigation against Nissan. Notably, Nissan extended warranty coverage for melting dashboards on some vehicles but did not do so for these G35, M35, and G37 models, so most owners face this as an out-of-pocket repair.

Common Symptoms

  • Dashboard surface soft, tacky, or sticky to the touch
  • Shiny reflective patches causing windshield glare
  • Cracks and chipping around the defroster vents
  • Discoloration or bubbling of the dash top
  • Glare that obscures forward vision in low sun

How to Fix

Do not expect goodwill coverage, though it is worth one call to Infiniti Consumer Affairs with the VIN since dealer discretion has occasionally applied. Practical options in ascending cost: a fitted dash cover or carpet-style mat, which hides the surface and kills the glare for well under a hundred dollars and is what most owners settle on; a vinyl or leather re-wrap by an upholstery shop; or full dashboard replacement, which is expensive largely because the labor requires removing the steering column, HVAC ducting, and often the windshield. Avoid silicone-based interior protectants on a dash already going soft — they make the tackiness worse. A windshield sunshade whenever the car is parked slows further degradation on a dash that has not yet failed.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • 2006 Infiniti G35 custom polycarpet dash cover
    OEMCarCoverPlanet custom polycarpet dash cover — 2006 Infiniti

    Select the exact body and a dark color; do not use this year page for the 2007-2008 V36 Sedan or a 2008 G37 Coupe.

    CarCoverPlanet
  • 2007 Infiniti G35 custom polycarpet dash cover
    OEMCarCoverPlanet custom polycarpet dash cover — 2007 Infiniti

    2007 Coupe or Sedan glare-control branch using body and speaker-cutout selection Fitment/availability: The product page separates 2007 G35 Coupe, Sedan with center-speaker cut-out and Sedan without it. Select the physical dash configurat…

    CarCoverPlanet
  • 2008 Infiniti G35 Sedan custom dashboard cover
    OEMCarCoverPlanet custom dash cover — 2008 Infiniti G35 Sedan

    2008 G35 Sedan glare-control branch with the correct center-speaker cut-out Fitment/availability: The 2008 G35 page lists Sedan only and requires selecting with or without the center-speaker cut-out. There is no 2008 G35 Coupe branch; a …

    CarCoverPlanet

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$60 - $2,500

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

On the 2003-2008 Infiniti G35, the sunroof tray is designed to collect water and route it through four drain tubes running down the A- and C-pillars. Debris packs the drain nipples at the corners of the tray, the tray overflows, and water spills into the headliner and down the pillars into the cabin. Owners find soaked front or rear floor carpet, water dripping from the headliner or map light area, and a persistent musty smell. Because the water tracks down the pillars it reaches wiring and body modules, which is why this shows up as electrical symptoms — including door lock actuators cycling on their own — rather than as an obvious leak. It is the single most common source of interior water intrusion on this chassis.

Common Symptoms

  • Wet or damp carpet in the footwells
  • Water dripping from the headliner or map light area
  • Persistent musty or mildew smell in the cabin
  • Door locks cycling on their own or intermittent electrical faults
  • Water stains on the A-pillar or C-pillar trim
  • Windows fogging that will not clear

How to Fix

Open the sunroof and locate the drain openings at the four corners of the tray. Clear them with low-pressure compressed air or a length of weed-trimmer line worked in gently — never a stiff wire or a drain snake, which punches through the tube and dumps water directly into the pillar, converting a clogged drain into a permanent leak. Pour a small amount of water into the tray and confirm it exits behind each wheel. Fix this before chasing any electrical gremlin on a car with damp carpet, and pull the carpet and padding up to dry them fully, since trapped moisture corrodes the connectors and modules under the seats and in the kick panels. A leak that persists with clear drains is usually a failed sunroof seal or a detached drain tube behind the pillar trim.

Typical repair cost:$0 - $900

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
High ConfidenceVerifiedReviewed Aug 2026
NHTSA Recalls6 recalls

AIR BAGS

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).

Campaign #08V52100007/10/2008

AIR BAGS

NISSAN IS RECALLING CERTAIN MODEL YEAR 2005 THROUGH 2007 INFINITI G35 SEDANS MANUFACTURED FROM MARCH 29, 2004 THROUGH AUGUST 25, 2006 AND INFINITI G35 COUPES MANUFACTURED FROM APRIL 1, 2004 THROUGH MAY 30, 2007. THE WIRE HARNESS CONNECTING THE BELT TENSION SENSOR (BTS) AND THE OCCUPANT DETECTION SENSOR (ODS) CONTROL UNIT UNDER THE FRONT PASSENGER SEAT CAN EXPERIENCE RELATIVE MOVEMENT WHICH CAN CAUSE WEAR AND OXIDIZATION OF THE TERMINALS AND MAY CAUSE INTERRUPTION OF THE SIGNAL.

Campaign #10V17500027/04/2010

EXTERIOR LIGHTING:HEADLIGHTS

CERTAIN VEHICLES FAIL TO COMPLY WITH THE "VERTICAL GRADIENT" AND "HEADLAMP PHOTOMETRIC VALUES" REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, 'LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.'

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Frequently Asked Questions

What are the most common Infiniti G35 problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2008 Infiniti G35 has 3 documented issues. The most frequently reported are: OCS Varistor Defect Suppresses Passenger Airbag (Recall 08V521000), Dashboard Melts, Turns Sticky, and Cracks Causing Windshield Glare, Clogged Sunroof Drains Causing Cabin Water Leaks and Electrical Faults. Of these, 1 is rated critical and should be addressed promptly.

Is the Infiniti G35 reliable?

The 2008 Infiniti G35 has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: OCS Varistor Defect Suppresses Passenger Airbag (Recall 08V521000). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Infiniti G35 problems?

Repair costs for known Infiniti G35 issues range from $0 to $2,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, OCS Varistor Defect Suppresses Passenger Airbag (Recall 08V521000), typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2007-2008 Infiniti G35 OCS Varistor Defect Suppresses Passenger Airbag (Recall 08V521000)?

A varistor inside the Occupant Classification System control unit, which sits in the front passenger seat cushion, was manufactured out of specification. Under certain conditions it interrupts the signal between the OCS and the airbag control unit. The airbag control unit interpr… Repairs typically run $0-$0. Severity: high.

What is the 2006-2008 Infiniti G35 Dashboard Melts, Turns Sticky, and Cracks Causing Windshield Glare?

The dashboard topper material breaks down under sustained sun and heat, going soft and tacky to the touch before developing shiny patches, cracks, and chipping — typically first around the defroster vents and the instrument binnacle. Beyond the cosmetic damage the degraded surfac… Repairs typically run $60-$2,500. Severity: medium.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

Campaign #06V39400013/10/2006

POWER TRAIN:CLUTCH ASSEMBLY

ZF SERVICE IS RECALL CERTAIN CLUTCH KIT ASSEMBLIES, PART NUMBER SX: K70358-01, SHIPPED TO WHOLESALERS AS SERVICE PARTS BETWEEN SEPTEMBER 1, 2010, AND MARCH 8, 2011. THESE SERVICE PARTS ARE INTENDED FOR USE ON MODEL YEAR 2003-2006 NISSAN 350Z AND INFINITI G35 VEHICLES. THE SX: K70358-01 CLUTCH KIT CONTAINS AN OVERSIZED CLUTCH DISC.

Campaign #11E02400024/06/2011

EXTERIOR LIGHTING

CERTAIN AAI MOTORSPORTS COMBINATION LAMPS SOLD AS REPLACEMENT LAMPS FOR USE ON THE ABOVE LIST PASSENGER VEHICLES. COMBINATION LAMPS NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."

Campaign #06E06000029/06/2006

+ 1 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

What is the 2003-2008 Infiniti G35 Clogged Sunroof Drains Causing Cabin Water Leaks and Electrical Faults?

The sunroof tray is designed to collect water and route it through four drain tubes running down the A- and C-pillars. Debris packs the drain nipples at the corners of the tray, the tray overflows, and water spills into the headliner and down the pillars into the cabin. Owners fi… Repairs typically run $0-$900. Severity: medium.