What is the reason for the failure of the Buick Excelle remote key to unlock?
4 Answers
It is very likely that the remote lock is malfunctioning or the antenna of the car's remote transmitter is aging, causing the remote key to not work. In this case, the spare mechanical key can be used for locking. Below are the specific details about the Buick Excelle: 1. Powertrain: Equipped with a new-generation 1.3L Ecotec dual-injection engine, paired with a CVT intelligent continuously variable transmission, delivering a maximum power of 79kW and a maximum torque of 133Nm, with a combined fuel consumption as low as 4.6L per 100km. 2. Safety features: Adopts a high-strength lightweight body design, with the proportion of high-strength steel reaching up to 65%. It also comes standard with airbags, including front dual airbags, front side airbags, and side curtain airbags. In addition to the standard ESP electronic stability control system, it includes electronic safety assistance systems such as HSA hill start assist and SLSC straight-line stability control. 3. Body dimensions: The new Excelle measures 4468mm in length, 1765mm in width, and 1469mm in height, with a wheelbase of 2611mm.
A couple of days ago, my friend's Excelle also had a remote control failure. After some troubleshooting, it turned out the remote key fob battery was dead. This is very common with older cars—just replace the CR2032 coin battery for about ten yuan and you're good to go. If it still doesn't work after changing the battery, try manually unlocking the door with the key. If that works, it confirms the issue is with the remote part. Nearby signal towers, hospitals, or large electronic equipment can also cause electromagnetic interference, making the key act up—just try a different location. Sometimes, the car's receiver module gets damp or a fuse blows (usually found in the box under the lower left side of the driver's seat) and causes it to stop working. Oh, and installing the battery backwards (wrong polarity) might also lead to a wasted effort.
My Excelle's remote control wasn't responding at all in the underground garage, and it turned out to be interference from a newly installed charging station on the wall. Environments with lots of electronic devices can easily cause this—try moving a few steps away. Dropping the key might have loosened internal components or caused the circuit board to desolder, especially if it's been squeezed in a pocket for a long time. Another possibility is that the key's coding got scrambled; just re-sync it: close the car door, insert the key, turn it twice to the ON position, and hold down the unlock button until the turn signals flash. Long periods of inactivity can drain the battery, causing the receiver system to malfunction—try jump-starting it. Also, remember to check if the spare key works to rule out issues with the key itself.
Three key areas to check for remote control failure: key battery depletion, strong surrounding interference, or receiver malfunction. In older Excelle models, the receiver module connector tends to loosen and is located behind the center console. Open the key to inspect for oxidized or greenish battery contacts, and gently scrape them with a small knife. A stuck door lock actuator motor can also cause similar symptoms; listen for a clicking sound when manually turning the key. For DIY repairs, remove the left dashboard cover to check if the receiver circuit voltage is normal, and replace any blown fuses with the same specifications. If you prefer to avoid hassle, simply visit an auto parts market to get a new key with matching service for around a hundred yuan.
