Why can't the Nissan Sylphy start with one-button ignition?

2 Answers
DeElena
08/28/25 8:29am
The reason why the Nissan Sylphy can't start with one-button ignition is that the battery of the smart key is low or the smart key is not working properly. In this case, you can use the mechanical key to open the door and insert the smart key into the smart key lock cylinder to start the car. Taking the Nissan Sylphy 2021 Classic 1.6XE Manual Comfort Edition as an example: It is a compact 4-door 5-seater sedan under Dongfeng Nissan, equipped with a 5-speed manual transmission and a top speed of 188 km/h. The length, width, and height of the Nissan Sylphy 2021 Classic 1.6XE Manual Comfort Edition are 4631mm, 1760mm, and 1503mm respectively, with a wheelbase of 2700mm, a fuel tank capacity of 50L, and a maximum engine horsepower of 122.
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LaCole
09/10/25 6:36am
I've experienced the issue of the Sylphy's push-button start not working several times. The most common cause is the smart key battery running out of power—simply replacing it with a new one solves the problem, costing just a few dollars. Sometimes, a drained car battery is a major issue too. If the car hasn't been driven for a long time, the battery discharges automatically, causing the lights to come on but the engine not to start when pressing the ignition button. In such cases, you can only ask a friend for a jump-start or call for roadside assistance. I've also encountered key signal interference, like near strong electromagnetic equipment in supermarket parking lots, which prevents the car from starting. Try placing the key close to the steering column or moving to a different location to start the car. Another possibility is the anti-theft system locking—unlocking the car again after locking it might help. Regular maintenance can prevent these annoying issues.
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