Do I need to wait for any advertising campaigns in order to earn this $2,555?

No need to wait, as LCR is actually the advertiser on these cars for the entire 1 year lease period.

For New Hirers
The cars shall be pre-installed with these die-cut LCR stickers (as per car pic shown above).

For Existing Hirers
You will need to be driving a participating car model (i.e. Honda Grace Hybrid, Shuttle or Vezel Hybrids), run down your current lease which is up for renewal on or before 7 Feb 2020, and to bring your car to LCR @ Carros to install the die-cut LCR stickers.