20 July 2020. This is an official doors closing & opening onboard Mercedes-Benz OC500LE (Batch 1) buses by SMRT Buses. Most of buses uses "Doors Are Closing" while some uses chimes. Onboard SMB58U on withdrawn-SMRT Service 700.
This one also applies to handed-over Tower Transit Singapore buses on Sembawang-Yishun Bus Package bus services!
Batch 2: [ Ссылка ]
