Vitara 2017, standing light flashing in regular rhythm at engine start

Dear Forists I usually drive Renault Kangoo and I know very badly about the Suzuki. Villeicht is a stupid beginner question. I have a problem with the standing light of the Suzuki Vitara 2017, 1.4 liter petrol engine, Allgrip four wheel drive. I leave the light switch on “automatic” and press the start button. After I turn on the ignition, the standing light goes on and off in regular rhythm, about 50 times per minute. The lighting of the dashboard goes in the same way. n Rhythm also on and off. When I switch from automatic to stand light or dipped light, this flash stops. When I start and start the engine, the flash also stops after a few meters. As soon as I drive, I can easily switch the light switch back to “Automatic” or “Off” and the flash does not start again. When I switch off the ignition and then restart the engine, it starts again exactly immediately. Note in the user manual and the Suzuki auto mechanic did not know what to do. Further observations: I am sure that it is not a wobble contact, because the flashing runs completely regularly and reproducibly depends only on the driving condition of the car. The battery is fine. The engine starts immediately even in cold weather.