How to Activate Hidden Features of the 2021 Classic Sylphy?
3 Answers
2021 Classic Sylphy hidden features activation methods are: 1. Simultaneously press and hold the lock and unlock buttons to set the lock confirmation sound, which will produce corresponding beeps when locking after activation; 2. Long press the trunk release button to automatically open the trunk; 3. One-touch window roll-up/down: With the vehicle powered on or started, pull up the driver-side window switch until the glass fully closes and hold for 5 seconds to activate one-touch roll-up. Taking the Sylphy 2021 Classic 1.6XL Manual Luxury Edition as an example: Its dimensions are 4631mm in length, 1760mm in width, and 1503mm in height, with a wheelbase of 2700mm. It is equipped with a 5-speed manual transmission and has a top speed of 188 km/h.
I remember studying these hidden features when I first got my Sylphy last year. The most practical one is holding down the lock button on the key fob to toggle the beep sound—the beeping when locking is especially handy for finding the car in parking lots. The auto-lock feature requires a program update at the 4S shop; it automatically locks the doors when reaching 20 km/h, which feels quite safe. Once, when I couldn’t find my car in a mall garage, pressing the key fob’s start button twice triggered the car-finder function—the lights flashed and the horn honked, making it easy to locate. Nowadays, modification shops can even enable auto-window-close upon locking, avoiding the embarrassment of leaving windows open in the rain. In the dashboard settings, the reverse radar volume is adjustable—just remember to use the steering wheel buttons to enter the settings menu and select 'warning volume adjustment.'
As an inquisitive car owner, I discovered that the Sylphy's ECU actually has reserved function interfaces. The locking sound effect can be activated through the body control module by holding the key for three seconds to toggle the state. Upgrading the window controls requires using a diagnostic computer to access system programming. After activation, holding the unlock button will simultaneously lower all four windows. The auto-locking principle is triggered by the speed sensor signal activating the door lock module. Some modification shops can even enable emergency braking hazard lights, but I didn't dare try it for fear of affecting the safety system. It's recommended to visit authorized shops for such operations, as tampering with circuits may affect the warranty.
