ExpiredRM40 OFF Rides with Grab Promo Code RM40 OFF December 6, 2017 678 Views RM5 OFF x 8 Grab rides with promo code D40 when booking a Grab ride. Valid on 6-12 December 2017. For Grabcar, GrabTaxi or JustGrab. Time from 10Am-10PM or up to 900 redemption per day. Valid for selected passengers only.