CUSTOMER CONCERN The ABS and traction-control warning lights remain on, and DTC C1018 will not clear. CAUSE The brake-control calibration was incomplete, leaving the ABS module without the required learned values. CORRECTION Perform the factory scan-tool brake and ABS relearn procedure.

CUSTOMER CONCERN The check engine light is on with EVAP leak DTC P0457 stored. CAUSE EVAP pressure and leak testing confirmed a leaking canister purge valve that would not seal correctly. CORRECTION Remove and replace the EVAP canister purge valve.

CUSTOMER CONCERN The ABS warning light is on with DTC C1015-64 stored. CAUSE Testing confirmed a failed brake-booster vacuum check valve that prevented the system from developing the required vacuum. CORRECTION Remove and replace the brake-booster vacuum check valve.

CUSTOMER CONCERN The Stop Safely Now message and hybrid warning lights appear intermittently, and the transmission will not shift out of Park. DTC P2800 is stored. CAUSE Moisture intrusion at connector C210 caused the confirmed electrical connection fault. CORRECTION Repair the moisture-damaged terminals and connections at connector C210, and secure the affected firewall entry point against further water intrusion.

CUSTOMER CONCERN The check engine light is on with DTCs P2450 and P0442 stored. CAUSE The confirmed failure is the fuel-vapor vent valve in the evaporative-emissions system. CORRECTION Remove and replace the EVAP fuel-vapor vent valve.

CUSTOMER CONCERN The check engine light is on with DTC P0130; the vehicle may otherwise run normally or surge while driving. CAUSE The confirmed failure is the universal heated oxygen sensor at Bank 1 Sensor 1. CORRECTION Remove and replace the Bank 1 Sensor 1 universal heated oxygen sensor.

CUSTOMER CONCERN Power steering assist is inoperative, and DTC B2278 returns after it is cleared. CAUSE Testing and confirmed-fix history identify a failed steering shaft torque sensor in the electronic power-assist steering system. CORRECTION Remove and replace the steering shaft torque sensor. Perform the required steering torque and steering-angle sensor calibration.

CUSTOMER CONCERN The vehicle intermittently enters limp mode with DTCs P0A7C, P1A0D, P1A0E, and P1A0F stored. CAUSE The confirmed failure is the Motor Electronics Cooling System pump, which is not circulating coolant through the hybrid electronics cooling circuit. CORRECTION Remove and replace the Motor Electronics Cooling System pump.

CUSTOMER CONCERN Customer states the vehicle intermittently enters limp mode. DTCs P0A7C, P1A0D, P1A0E and P1A0F are stored. CAUSE The Motor Electronics Cooling System pump did not operate with the key on and failed direct power testing, confirming pump failure. CORRECTION Remove and replace Motor Electronics Cooling System pump. Refill and bleed electronics cooling circuit, clear hybrid DTCs and verify pump operation.

CUSTOMER CONCERN Customer states the ABS warning light is on. DTCs C1321, C1475 and U2023 are stored. CAUSE No external brake-fluid leaks were found, confirming an internal failure of the ABS hydraulic unit/control module assembly. CORRECTION Remove and replace ABS hydraulic control unit/control module assembly. Program module, perform hybrid ABS bleed procedure and clear DTCs.

CUSTOMER CONCERN Customer states the engine will not crank and the Stop Safely Now message is displayed. DTCs P0B37 and P1A10 are stored. CAUSE Inspection confirmed the high-voltage battery service disconnect handle was not fully latched, leaving the interlock circuit open. CORRECTION Correctly seat and latch high-voltage battery service disconnect. Clear hybrid-system DTCs and verify normal starting operation.

CUSTOMER CONCERN Customer states the ignition key intermittently becomes difficult to turn into the start position, even after the lock cylinder and ignition switch were replaced. CAUSE Inspection under TSB 09-19-15 confirmed the steering-column lock module housing was binding the ignition mechanism. CORRECTION Remove and replace steering-column lock module. Verify smooth key rotation and normal starting operation.

CUSTOMER CONCERN Customer states the engine will not crank. DTCs P0AA6 and C1862 reset during a start attempt. CAUSE High-voltage system testing confirmed an internal isolation fault in the traction-battery assembly. CORRECTION Remove and replace high-voltage traction-battery assembly. Clear hybrid-system DTCs.

CUSTOMER CONCERN Customer states the check-engine light is on and DTC P0128 is stored. CAUSE Cold-soak temperature data and cooling-system checks confirmed the engine coolant thermostat was not maintaining the specified regulating temperature. CORRECTION Remove and replace engine coolant thermostat. Refill and bleed engine cooling system. Clear DTC P0128.

CUSTOMER CONCERN Customer states the 12-volt battery goes dead overnight or after the vehicle sits for several days. DTC B1318 may be stored. CAUSE Battery load testing confirmed the 12-volt battery could not maintain the required voltage. CORRECTION Remove and replace 12-volt battery. Clear low-voltage DTCs and verify normal starting operation.

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 the ABS warning light is on and brake-pedal operation feels abnormal. The ABS module stores C1524, C1526 and U2023. CAUSE Circuit testing at the brake-pedal position sensor found the sensor signal did not agree with the 5-volt reference circuits on the Blue/Brown and Brown/White wires, confirming a failed BPP sensor. CORRECTION Remove and replace brake-pedal position sensor. Perform sensor calibration and clear ABS DTCs.

CUSTOMER CONCERN Customer states the check-engine light is on with DTC P0128. CAUSE Cold-soak temperature comparison confirmed the engine coolant thermostat was not regulating temperature correctly. CORRECTION Remove and replace engine coolant thermostat. Refill and bleed engine cooling system.

CUSTOMER CONCERN Customer states electric power steering assist is inoperative and the PSCM stores DTC C2792. CAUSE Power and ground circuit testing confirmed an internal Power Steering Control Module fault. CORRECTION Remove and replace Power Steering Control Module. Program and configure replacement module as required.

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.