Electronically controllable pneumatic brake system (100a, 100b) in a vehicle, in particular a commercial vehicle, comprising at least: wheel brakes (1, 2, 3, 4) for braking wheels (5, 6, 7, 8) of the vehicle, wherein a service brake braking pressure (p1, p2, p3, p4) may be specified by axle modulators (9, 10) to the wheel brakes (1, 2, 3, 4) in dependence upon a service brake control pressure (pA, pB), a foot brake valve for the pneumatic specification of the service brake control pressure (pA, pB) to the axle modulators (9, 10), wherein the service brake control pressure (pA, pB) may be generated by means of the foot brake valve in dependence upon a mechanical specification or in dependence upon an electropneumatic specification, and a bypass valve arrangement (16, 19) for specifying a foot brake input pressure (pE) to the foot brake valve, said foot brake input pressure (pE) being used as an electropneumatic specification, wherein the bypass valve arrangement (16, 19) specifies a low pressure level (pLow) to the foot brake valve in a first switch position and said bypass valve arrangement (16, 19) specifies a high pressure level (pHigh) to the foot brake valve in a second switch position as an electropneumatic specification with the result that the foot brake input pressure (pE) may be specified in dependence upon the low pressure level (pLow) and/or in dependence upon the high pressure level (pHigh), characterized in that the bypass valve arrangement (16, 19) is connected to a venting chamber of the foot brake valve so as to conduct flow with the result that the foot brake input pressure (pE) that is specified by the bypass valve arrangement (16, 19) may be passed through as an electropneumatic specification via the venting chamber and an operating chamber of the foot brake valve directly to the axle modulators (9, 10) as a service brake control pressure (pA, pB). wheel brakes (1, 2, 3, 4) for braking wheels (5, 6, 7, 8) of the vehicle, wherein a service brake braking pressure (p1, p2, p3, p4) may be specified by axle modulators (9, 10) to the wheel brakes (1, 2, 3, 4) in dependence upon a service brake control pressure (pA, pB), a foot brake valve for the pneumatic specification of the service brake control pressure (pA, pB) to the axle modulators (9, 10), wherein the service brake control pressure (pA, pB) may be generated by means of the foot brake valve in dependence upon a mechanical specification or in dependence upon an electropneumatic specification, and a bypass valve arrangement (16, 19) for specifying a foot brake input pressure (pE) to the foot brake valve, said foot brake input pressure (pE) being used as an electropneumatic specification, wherein the bypass valve arrangement (16, 19) specifies a low pressure level (pLow) to the foot brake valve in a first switch position and said bypass valve arrangement (16, 19) specifies a high pressure level (pHigh) to the foot brake valve in a second switch position as an electropneumatic specification with the result that the foot brake input pressure (pE) may be specified in dependence upon the low pressure level (pLow) and/or in dependence upon the high pressure level (pHigh), characterized in that the bypass valve arrangement (16, 19) is connected to a venting chamber of the foot brake valve so as to conduct flow with the result that the foot brake input pressure (pE) that is specified by the bypass valve arrangement (16, 19) may be passed through as an electropneumatic specification via the venting chamber and an operating chamber of the foot brake valve directly to the axle modulators (9, 10) as a service brake control pressure (pA, pB).