This indicator light is used to display the working status of the automatic overspeed gear. When the indicator light is on, it means that the O/D gear is locked. At this time, the acceleration capacity is improved, but the fuel consumption increases.
If the indicator light is not on, the possible fault points include: gateway damage, ELV electronic steering lock damage, key damage, comfort CAN line failure, drive CAN line failure, anti-theft function failure, steering column control unit failure, instrument control unit failure, and There may be strong signal interference from the outside world. You need to go to a professional repair shop to repair your toyota highlander or buy a new car, such as
toyota calya.