Where is bank 1 sensor 1 on a 2006 Suzuki Grand Vitara?

On a 2006 Suzuki Grand Vitara, Bank 1 Sensor 1 refers to the upstream oxygen sensor located on the exhaust manifold or just before the catalytic converter on the driver's side of the engine. This sensor monitors the level of oxygen in the exhaust gases to help optimize fuel efficiency and emissions. To access it, you may need to lift the vehicle and remove any necessary components for better visibility.