Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSINFINITI2006FX35 AWD V6-3.5L (VQ35DE)REPAIR AND DIAGNOSISSTARTING AND CHARGINGSTARTING SYSTEMKEYLESS STARTING SYSTEMKEYLESS START TRANSMITTERTECHNICAL SERVICE BULLETINSKEYLESS SYSTEMS - INTELLIGENT KEY(R) BATTERY REPLACEMENT
2006 Infiniti FX35 AWD V6-3.5L (VQ35DE)
Keyless Systems - Intelligent Key(R) Battery Replacement
2006 Infiniti FX35 AWD V6-3.5L (VQ35DE)SECTION Keyless Systems - Intelligent Key(R) Battery Replacement
Classification: EL09-043B
Reference: ITB09-059B
Date: June 8, 2012
INTELLIGENT KEY BATTERY REPLACEMENT AND BATTERY DISCHARGE INDICATOR RESET
This bulletin was amended to include additional models, add the "IMPORTANT" statement below, and change the NOTE below. Please discard all previous copies.
APPLIED VEHICLES: Vehicles equipped with Intelligent Key
IF YOU CONFIRM
The battery in the Intelligent Key needs to be replaced for any reason.
ACTION
1. Open the Intelligent Key as described in the Service Procedure and replace the battery.
2. Confirm the battery discharge indicator has reset/is not illuminated in the dot matrix display.

NOTE:
DO NOT insert a tool into the notches of the Intelligent Key (if equipped) to pry it open, as this may damage the printed circuit board (PCB).


SERVICE PROCEDURE
Reference: ITB09-059B
Date: June 8, 2012
INTELLIGENT KEY BATTERY REPLACEMENT AND BATTERY DISCHARGE INDICATOR RESET
This bulletin was amended to include additional models, add the "IMPORTANT" statement below, and change the NOTE below. Please discard all previous copies.
APPLIED VEHICLES: Vehicles equipped with Intelligent Key
IF YOU CONFIRM
The battery in the Intelligent Key needs to be replaced for any reason.
ACTION
1. Open the Intelligent Key as described in the Service Procedure and replace the battery.
2. Confirm the battery discharge indicator has reset/is not illuminated in the dot matrix display.
NOTE:
DO NOT insert a tool into the notches of the Intelligent Key (if equipped) to pry it open, as this may damage the printed circuit board (PCB).
SERVICE PROCEDURE
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.