CUSTOMER CONCERN Customer states brake pressure was lost at the right rear after rear brake and caliper replacement, and manual, gravity and pressure bleeding did not restore the pedal. CAUSE Air remained trapped in the electronically controlled hydraulic brake system, and zero accumulator pressure prevented the scan-tool bleed routine from operating normally. CORRECTION Operate brake pump to establish accumulator pressure, then perform complete hybrid ABS service-bleed proce

CUSTOMER CONCERN Customer states the replacement brake actuator pump will not run or build pressure. DTCs C1246, C1364 and C1365 are stored, and accumulator pressure reads zero. CAUSE The hydraulic system had no accumulator pressure after actuator installation, preventing normal pump control until pressure was established and the service routine completed. CORRECTION Power brake-pump motor to establish accumulator pressure, perform complete ABS bleed and linear-valve relearn,

CUSTOMER CONCERN Customer states the brake pedal is low after replacement of a failed front brake hose. DTC C1525 is stored. CAUSE Air remained trapped in the electronically controlled hydraulic brake system because the required hybrid service-bleed routine had not been completed. CORRECTION Perform complete hybrid ABS bleed procedure with a compatible scan tool and pressure bleeder. Clear DTC C1525 and verify brake-pedal height.

CUSTOMER CONCERN Customer states brake pressure was lost at the right rear after rear brake and caliper replacement, and conventional bleeding did not restore the pedal. CAUSE Air remained trapped in the electronically controlled brake system and the hydraulic pump required scan-tool activation. CORRECTION Operate brake pump and perform complete hybrid ABS bleed procedure with a compatible scan tool. Verify brake-pedal pressure.

CUSTOMER CONCERN Customer states the brake pedal is low after replacement of a failed front brake hose. DTC C1525 is stored. CAUSE Air remained trapped in the electronically controlled hydraulic brake system because the required hybrid service-bleed routine had not been completed. CORRECTION Perform complete ABS service-bleed procedure with a compatible scan tool and pressure bleeder. Clear DTC C1525.

CUSTOMER CONCERN Customer states brake pressure was lost at the right rear after rear brake and caliper replacement, and conventional bleeding did not restore the pedal. CAUSE Air remained trapped in the electronically controlled brake system, leaving insufficient hydraulic pressure for conventional bleeding. CORRECTION Use a compatible scan tool to operate the brake pump, build hydraulic pressure and perform the complete brake bleeding procedure.

CUSTOMER CONCERN Customer states the brake pedal remains low after front brake-hose replacement and DTC C1525 is stored. CAUSE Air remained trapped in the electronically controlled hydraulic brake system because the required hybrid service-bleed routine had not been completed. CORRECTION Perform complete ABS service-bleed procedure with a compatible scan tool and pressure bleeder. Clear DTC C1525.

CUSTOMER CONCERN Customer states brake pads and rotors were replaced, but the brake system will not bleed and no fluid reaches the right rear caliper. CAUSE The electronically controlled brake system contained trapped air and required the Toyota scan-tool-controlled bleed routine rather than conventional manual bleeding. CORRECTION Perform complete hybrid ABS service-bleed procedure with a compatible scan tool and pressure bleeder.

CUSTOMER CONCERN After a front brake hose was replaced, the brake pedal remained low and DTC C1525 set. CAUSE Air remained trapped in the electronically controlled hydraulic brake system because the hybrid-specific service bleed had not been completed. CORRECTION The full ABS service-bleed procedure was carried out with a compatible scan tool and pressure-bleeding equipment.

CUSTOMER CONCERN A front brake hose failed and, after replacement, the brake pedal remained low while DTC C1525 set. CAUSE Air remained trapped in the electronically controlled hybrid brake system. CORRECTION The prescribed ABS service-bleed procedure was completed with compatible scan and pressure-bleeding equipment.