What are the reasons for the BYD S6's one-button start not responding?
3 Answers
The reasons for the BYD S6's one-button start not responding are as follows: The smart key battery is dead: The sensor in the car has difficulty detecting it, leading to failure to start. Interference: There is interference near the parking area, causing the car to fail to detect the key. Information about one-button start is as follows: One-button start: It is a part of smart cars, a button device that simplifies the ignition process and can also turn off the engine. The one-button start can be installed in the original car key lock position or as an independent panel modification. Functions: Automatic unlocking, automatic locking, automatic window closing, automatic anti-theft, one-button start, one-button shutdown, automatic locking before driving, automatic unlocking when parking and shutting down, and also a trunk opening function.
I encountered a one-button start failure while driving my BYD S6 and summarized several possible reasons. The most common one is a dead smart key battery. When the key is in your pocket and interfered with by a phone or when the battery is depleted, the key signal cannot be transmitted. Try placing the key close to the one-button start button or simply replace the coin battery. The second reason is a dead car battery. If the dashboard doesn't light up and the headlights are dim when starting, it's likely a battery issue, and you'll need a jump start. The third reason is to check the gear position. For automatic transmissions, the car must be in P or N gear to start. Sometimes, if the gear lever isn't fully engaged when parking, the car won't start. Another issue is not pressing the brake pedal deep enough. The start design requires the brake to be fully depressed to power on, so try pressing it all the way down. Other less common issues include a locked steering wheel, blown fuses, or a faulty start button, which would require a visit to the repair shop for inspection.
Analyzing one-button start failure focuses on the interplay of three systems. First, sensor system malfunction—low key fob battery or strong magnetic interference can prevent the car from receiving signals. Second, power system issues—when the battery voltage drops below 10V, it can't power the starter, potentially causing electrolyte leakage that corrodes terminals. Third, control system logic—faulty brake signal sensors or misjudged gear position sensors may make the vehicle think startup conditions aren't met. I've observed BYD S6 models are more prone to cold-start delays in low temperatures, which actually reflects reduced chemical activity in the battery. Routine maintenance suggestions: regularly check key fob battery, avoid storing keys with smartphones in the same pocket, and always verify gear position when parking—these practices prevent over 90% of starting issues.
