How to Restore the Start-Stop Function in the Envision?
2 Answers
Generally, vehicles equipped with an automatic start-stop system have it enabled by default. It is possible that the system was turned off accidentally by pressing the automatic start-stop button on the car. The design of the automatic start-stop system varies across different models and brands, and certain conditions must be met. Specifically, the seatbelt must be fastened.
I recently helped a friend deal with the issue of the Envision's auto start-stop system failing—it turns out there were many overlooked details. The most common cause is insufficient battery voltage—remember to check it with a multimeter; if it's below 12 volts, the system will automatically disable the start-stop feature. Running the AC can also prevent it, especially on hot days when the compressor is operating at full power—the start-stop won't trigger at all. Another small but often ignored detail: if the passenger seatbelt isn’t fastened, the function will also deactivate. Also, check the steering wheel angle sensor—the small component near the steering column has a high failure rate. If you still can’t find the cause, visit a dealership to connect to the diagnostic computer—reading the fault codes is the quickest way, as it might be due to a communication error in the body control module.
