The R-ABS system uses an amber ANTI-LOCK warning lamp to advise the operator of faults. The lamp should come on briefly during engine start-up and then go out. If the lamp lights during vehicle operation, a fault has been found and the anti-lock system is disabled. If only the amber lamp is lit, the vehicle may be safely driven but without the benefit of the anti-lock function.
The conventional brake system uses the familiar red BRAKE warning lamp. Should the BRAKE warning lamp come on, it will usually trigger the ANTI-LOCK lamp as well. Any time the red lamp is lit, the conventional braking system may be impaired. Great care must be used when operating the vehicle.