How to Replace the Remote Battery for Fit?

[McJasmine]

The method for replacing the remote battery of Fit is as follows: 1. Press the button on the electronic key to eject the mechanical key. 2. There is a notch where the mechanical key is covered, insert a coin into the notch. 3. Turn the coin clockwise, and the electronic key will separate into the electronic board and the power supply part. 4. After seeing the battery, remove the old battery by hand and replace it with a new one. Precautions when replacing the battery for Fit key are as follows: 1. Before prying open the key, take measures to prevent small parts from falling and getting damaged. 2. The battery model must be the same as the original battery model. 3. Before removing the battery, clearly identify and remember the installation polarity to ensure that the positive and negative poles are installed the same as the original battery. 4. After reassembling the electronic key, make sure the buckle is restored to its original position and the mechanical key is locked in place.

[MacSteven]

Yesterday I just replaced the battery for my Fit's key fob, the whole process took only ten minutes. First you need to locate the small groove on the side of the key fob, then use a coin or your fingernail to press and pop out the mechanical key. Next, use a flathead screwdriver to pry open the key fob casing, being careful not to apply too much force to avoid breaking the clips. The battery sits beneath the black circuit board - it's a CR1620 coin cell. When installing the new battery, remember to place it with the positive side up, just like the old battery's orientation. When reassembling the casing, you should hear a 'click' sound indicating the clips are properly secured. After replacement, don't forget to test the lock button - seeing the red light illuminate means success. The Panasonic battery I bought at the supermarket cost only 8 yuan, much cheaper than at the 4S shop.

[SanMiranda]

As an auto repair shop, we frequently handle battery replacements for the Fit. This generation of the Fit has a simple key design: press the square button on the back of the key with your thumb while pulling out the mechanical key. You can see the clip position inside the key slot; use a thin plastic piece to gently pry it open. Be careful not to lose the waterproof gasket on the battery cover. A standard 3V CR1620 battery will work—brands like Nanfu, Panasonic, or Super B are all fine. After installation, test all button functions: the lock button should light up red, the trunk button should open the lid when held down, and test the alarm button closer to the car. High summer temperatures can drain the battery faster, so it's recommended to check it every two years.

[LaLayla]

Based on my experience, the Fit remote can be roughly divided into three generations: the GD3 model has a push button on the side, the GE8 has a button below the logo, and the GK5 has a slot on the side. Yours should be the folding key with a lightning symbol, right? Use a small Phillips screwdriver to remove the back screws, then pry open the shell along the midline with your fingernail. If the multimeter shows the old battery voltage is below 2.7V, it needs replacement. I recommend Maxell or Renata batteries, and remember to clean the contact points of oxides with a cotton swab. On Pinduoduo, you can get five batteries for just 12 yuan, which is more cost-effective than buying individually. After installation, test the remote range—it should normally respond within 20 meters.

[GraceRose]

Last time, my wife's Fit remote control failed and almost made her late for work. After removing the mechanical key, note that the third-generation Fit key slot has a thin gap at the bottom—just slide a bank card around it to open. The battery compartment has positive and negative markings, so don't install it backward. After replacing the battery, it's recommended to sync the remote: sit in the car, close the door, turn the key to the ON position, and immediately press the lock button for three seconds. Success is indicated by the hazard lights flashing. A special reminder: avoid using Nanfu CR1616 as a replacement—it's 0.4mm thinner and may cause poor contact. The dealership charges 80 yuan, but you can do it yourself for less than 10 yuan.