Keys & electronicsHonda Fit GP5

Honda Fit GP5 Hybrid: Replace the CR2032 Smart-Key Battery

Replace the CR2032 cell in the first-generation Honda Fit Hybrid GP5 smart key using Honda's archived owner-manual instructions. Includes case-opening precautions, polarity checks and a post-replacement test.

Time
5–10 minutes
Difficulty
Easy
Tools
3 needed
Instructions
7 steps

Applies to Honda Fit GP5 · 2013–2020. Japan-market Honda Fit Hybrid GP5 within the 2013–2020 generation, only when the smart key matches the illustrated Honda procedure.. Always compare the described parts, labels and specifications with your own vehicle and manual.

Manual-referencedHonda Fit Hybrid archived owner's manual, and Honda Fit 2013–2020 smart-key FAQPrinted page 317, Honda smart key handling and battery replacement; lever, built-in key, cloth-protected coin, CR2032 and polarity. Honda archived Fit FAQ qa002 independently confirms GP5/GP6 CR2032.
Review evidence and limitations ↓

Tools and materials

  • One CR2032 coin-cell battery for the documented Honda smart key
  • Clean, soft cloth
  • Coin to help release the cover as shown in the manual

Step-by-step instructions

Follow these steps

Follow the written instructions in order; illustrations are optional, not a requirement for a complete guide. If a component or label looks different on your car, stop and check your own manual.

  1. Step 1 of 7

    Confirm the GP5 smart-key type and CR2032 battery

    Verify that your Fit Hybrid is the GP5 generation covered by Honda's 2013–2020 Fit archive, and that you have the Honda smart key shown in the matching owner manual. Honda specifies a CR2032 button battery for this smart-key type. A weak or inconsistent operating range or a key indicator that no longer lights can indicate a discharged cell.

    Check before moving on

    The original key matches the Honda manual and the replacement cell is marked CR2032.

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  2. Step 2 of 7

    Choose a clean work surface and secure the loose battery

    Work on a dry, well-lit surface away from small children and pets. Keep both the replacement coin cell and the removed battery out of reach. Do not open the key next to a drain or an area where tiny components could be lost.

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  3. Step 3 of 7

    Release and withdraw the built-in mechanical key

    Operate the release lever on the Honda smart key and pull the built-in mechanical key out of its housing. Do not pull against the latch; follow the lever direction shown in the Honda owner's manual.

    Check before moving on

    The mechanical key slides out without damage.

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  4. Step 4 of 7

    Open the smart-key cover without damaging its edges

    Follow Honda's case-opening diagram. Wrap a coin in a soft cloth and use it to separate the cover gently at the indicated opening point. Do not substitute excessive leverage or pry against the circuit board.

    Check before moving on

    Both case halves separate without cracked tabs or distorted plastic.

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  5. Step 5 of 7

    Replace the CR2032 while preserving the original polarity

    Observe the orientation of the existing coin cell before removing it. Take out the old battery, avoid moving the contact springs or electronic module, and seat the new CR2032 with its positive and negative faces oriented exactly as the Honda manual and holder show. Never bend a contact to force a cell into place.

    Check before moving on

    The new CR2032 sits flush and the polarity matches the holder and manual.

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  6. Step 6 of 7

    Securely close the cover and reinstall the mechanical key

    Align the cover and close it fully along the edges, then return the mechanical key until its release mechanism holds it. Honda warns that an incompletely closed smart key can lose weather resistance.

    Check before moving on

    The cover edges sit flush and the mechanical key is firmly retained.

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  7. Step 7 of 7

    Verify the key operates the correct vehicle

    Near the vehicle, check the lock and unlock buttons and the key's normal indicator behavior. If it still performs poorly, verify the new cell's seating and specification once; do not repeatedly force open a damaged case. Honda advises dealer assistance when the case or components may have been harmed.

    All steps ↑

References & limitations

Where these instructions come from

Japan-market Honda Fit Hybrid GP5 within the 2013–2020 generation, only when the smart key matches the illustrated Honda procedure.

CR2032 applies to the documented Honda smart key, not every aftermarket/replacement fob. Case disassembly and polarity follow the specific archived Honda diagrams.

Honda Fit Hybrid archived owner's manual, and Honda Fit 2013–2020 smart-key FAQ ↗

Manual section: Printed page 317, Honda smart key handling and battery replacement; lever, built-in key, cloth-protected coin, CR2032 and polarity. Honda archived Fit FAQ qa002 independently confirms GP5/GP6 CR2032.

Instructions checked against manufacturer documentation; not a physical inspection of every vehicle.