Loading...

Infiniti Ex35 Push To Start Ignition Switchs

Infiniti Ex35 Push to start ignition switchs

Starting at low prices, AutoBuffy carries multiple push to start ignition switches from top OE-quality brands. This switch sends the signal that authorizes engine cranking when you press the start button, communicating with the vehicle's immobilizer and BCM. When it fails, the engine may not crank at all, leaving you stranded even with a valid key fob present.

Signs your Infiniti Ex35 needs a new push to start ignition switch

  • Pressing the start button produces no response — no crank, no click, no dash activity
  • Engine cranks intermittently; sometimes starts normally, other times requires multiple button presses
  • Dashboard displays 'Key Not Detected' or 'No Key Fob' even when the fob is inside the vehicle
  • Vehicle starts but immediately stalls, suggesting the switch is not holding the run signal
  • Start button feels physically stuck, mushy, or no longer clicks with normal tactile feedback
  • Accessory or ignition-on mode activates but the engine will not proceed to crank

Which push to start ignition switch should you buy for your Infiniti Ex35?

The main decision is whether to buy an OEM-equivalent direct replacement or a branded aftermarket unit, and whether the switch is sold standalone or as part of a start button assembly with the surrounding bezel and wiring pigtail. Some Infiniti Ex35 applications require a switch that is pre-programmed or must be paired to the BCM, so confirming compatibility before purchase is essential.

OEM-Equivalent Replacement Switch
Best for
Owners who want factory fit, finish, and plug-and-play installation with no reprogramming
What you get
Exact connector, button travel, and resistance specs matched to the original; typically the safest choice for daily drivers
Aftermarket Standalone Switch
Best for
Budget-conscious repairs where the surrounding bezel and wiring are undamaged
What you get
The internal switch mechanism only at a lower price point; may require careful fitment verification against your existing assembly
Complete Start Button Assembly
Best for
Vehicles where the bezel, button cap, or pigtail are cracked, corroded, or missing
What you get
Switch, housing, button cap, and connector as one unit; eliminates the need to transfer fragile parts from the old assembly
Heavy-Duty / Enhanced Contact Assembly
Best for
High-mileage vehicles or those in humid climates where contact corrosion was the root cause of failure
What you get
Gold-plated or sealed contacts that resist oxidation and moisture intrusion for longer service life

Replacing the push to start ignition switch on a Infiniti Ex35

Easy⏱ 30–60 minutesPlastic trim pry toolsPhillips and flathead screwdriversSmall socket set or nut driverNeedle-nose pliersMultimeter (for pre-installation circuit verification)

Disconnect the negative battery terminal before starting to prevent accidental cranking or BCM faults. Use plastic pry tools to carefully remove the surrounding trim panel, unplug the wiring connector from the old switch, and release the retaining clip or screws holding the switch in place. Install the new switch in reverse order, reconnect the battery, and test for normal start operation before reassembling trim.

Frequently asked questions

How much does it cost to replace push to start ignition switches on a Infiniti Ex35?
Parts start at low prices for a Infiniti Ex35 push to start ignition switch at AutoBuffy. A complete assembly costs more than a standalone switch. Add one to two hours of shop labor if you are not doing it yourself, though many owners complete this repair at home with basic hand tools and no special programming equipment.
Can I replace the push to start ignition switch on my Infiniti Ex35 myself?
Most Infiniti Ex35 push to start switch replacements are a straightforward DIY job. The switch typically unclips or unscrews from the dash panel, and the wiring connector releases with a tab. No soldering is required. The main risk is cracking a trim panel, so work slowly with plastic pry tools and disconnect the battery first.
Does a new push to start ignition switch need to be programmed on a Infiniti Ex35?
In most cases, a direct-replacement push to start switch does not require programming because it is a passive input device — it signals the BCM to authorize starting, but the actual security pairing lives in the key fob and BCM. However, some Infiniti Ex35 configurations integrate immobilizer logic into the assembly, so always verify your application before ordering.
What causes a push to start ignition switch to fail on a Infiniti Ex35?
The most common causes are worn or oxidized internal contacts from repeated pressing over high mileage, moisture intrusion that corrodes the contact surface, and physical damage to the button mechanism. Electrical faults such as a short in the start circuit or a faulty brake pedal position sensor can mimic a bad switch, so diagnose carefully before replacing.
How do I know if it is the ignition switch or the key fob causing my Infiniti Ex35 not to start?
Hold your key fob directly against the start button when pressing it — many Infiniti Ex35 systems can read a fob with a dead battery via passive RF coupling at close range. If the engine cranks with the fob touching the button but not from across the cabin, the fob battery is the issue. If it still will not crank, suspect the switch, brake switch, or BCM.
How long does a push to start ignition switch typically last?
Push to start ignition switches are rated for tens of thousands of presses and generally last many years under normal use. High-humidity environments, liquid spills near the dash, and aggressive button pressing can shorten lifespan. If your Infiniti Ex35 is exhibiting intermittent starting problems after high mileage or years of use, the switch is a reasonable first suspect.

More parts for your Infiniti Ex35

Cabin Air Temperature SensorFuel Filler Door Lock ActuatorRadiator CapAccessory Drive Belt PulleyDirect Ignition Coil BootFuel Injection Throttle BodyStarter SolenoidHVAC Pressure Transducer

Push to start ignition switchs for other Infiniti models

Infiniti M35hInfiniti FX35Infiniti G35Infiniti FX50Infiniti QX50Infiniti Q50