How to Replace the Battery in a Ford EcoSport Key?
4 Answers
Ford EcoSport key battery replacement method: Before replacing the battery, you need to open the key. There is a gap at the position of the mechanical key. Use a flat-head screwdriver to pry open the car key along the gap. After opening the car key, you can see the circuit board and battery inside the key. Remove the old battery, replace it with a new one, and reassemble the key. Taking the 2019 Ford EcoSport as an example, it is a compact SUV with body dimensions of 4345mm in length, 1785mm in width, and 1659mm in height, a wheelbase of 2530mm, a fuel tank capacity of 52 liters, and a trunk capacity of 384 liters. This vehicle is equipped with a 1.5L naturally aspirated engine, delivering a maximum horsepower of 120PS, a maximum power of 88kW, a maximum torque of 150Nm, and is paired with a 6-speed automatic transmission.
Last time I changed the key battery for my little Bora, it was quite a hassle. The old-style flat key requires a flathead screwdriver to pry open the shell seam, and it took me forever to open it with my nails. Inside is a CR2032 button battery, the five-yuan ones from the supermarket will do. The key point is to remember to place the battery with the positive side up! When putting it back together, you need to press the snap firmly until you hear a click to ensure it's properly seated. Take the opportunity to clean the copper contacts in the battery compartment with a cotton swab, as any rust can affect the signal. After finishing, if the lock/unlock buttons don't respond when testing, it's likely the battery was inserted the wrong way—just reopen the cover and check. Doing it yourself saves you eighty bucks compared to the dealership.
If you're holding a smart key with chrome-plated buttons, there's a hidden mechanism on the back cover. See that small tab at the bottom of the key? Push it sideways to pull out the mechanical key. Beneath the keyhole hides a cross-head screw - borrow a screwdriver from an eyeglass store to loosen it. Be careful not to lose the rubber gasket inside when removing the cover; that thing's waterproof. The battery model is usually CR2025 - snap a photo with your phone to record the orientation before removing the old battery. After installing the screw, don't reassemble the back cover immediately - press the key to check if the red light comes on first, saving you rework. For this model, replacing the key battery every two years is standard practice.
Prepare the necessary tools before starting: a CR2032 battery and plastic pry tools are gentler on the casing than metal screwdrivers. The small groove on the side of the key is the entry point—gently pry open a gap and work your way around, avoiding forceful bending. The small spring clip inside the battery compartment tends to get stuck; just nudge it back into place with tweezers. Important reminder: avoid pressing the lock button during the entire battery replacement process. I once accidentally triggered it, causing the key to malfunction and requiring reprogramming. Ford's key has an exceptionally thin waterproof gasket, so align it properly with the slot before pressing it back in. You'll know it's seated correctly when you hear three crisp clicks. After replacing the battery, wipe the circuit board contacts with an alcohol swab for better signal responsiveness.
