All Posts

CUSTOMER CONCERN The tire-pressure warning system stores DTC C2126 because a transmitter ID is not received in main mode after sensor replacement. CAUSE The confirmed repair identified a failed replacement TPMS sensor and an incomplete transmitter-ID registration. CORRECTION Remove and replace the failed TPMS sensor, register all tire-pressure sensor IDs with the scan tool, perform system initialization, clear DTC C2126, and verify all tire pressures display correctly.

CUSTOMER CONCERN After front-end collision repairs and replacement of the front bumper sensors, the parking-assist system stores DTCs C1AEC and C1AEE. CAUSE The replacement ultrasonic parking sensors had not completed detection-angle calibration and registration after the collision repair. CORRECTION Perform the ultrasonic sensor detection-angle procedures and intelligent-clearance sonar registration, clear DTCs C1AEC and C1AEE, and verify parking-assist operation.

CUSTOMER CONCERN The vehicle stalled while driving, required towing, and had a depleted high-voltage battery with DTCs P261A13, C1259, and C1A50. CAUSE The confirmed repair identified a failed 12-volt auxiliary battery as the cause of the stall and related hybrid-system faults. CORRECTION Remove and replace the failed 12-volt auxiliary battery, clear DTCs P261A13, C1259, and C1A50, and verify Ready mode, charging, and normal vehicle operation.

CUSTOMER CONCERN After collision damage and grille-shutter replacement, the system reports that initialization is incomplete; the original fault was P059F73 for a shutter stuck closed. CAUSE The replacement active grille shutter had not completed its required initialization. CORRECTION Place the grille-shutter system in normal run mode, cycle the ignition to complete active grille shutter initialization, clear the stored fault, and verify normal shutter operation.

CUSTOMER CONCERN After collision repairs, the dash displays a message to clean the parking sensors even though the sensors are clean. CAUSE The repaired rear parking-aid sensors were out of calibration after the bumper work. CORRECTION Calibrate the parking-aid sensors and verify the false clean-sensor message no longer appears and parking-assist operation is normal.

CUSTOMER CONCERN Warning lights come on intermittently and DTC P261B sets because engine water-pump speed is below the commanded value. CAUSE A defective aftermarket electric engine water pump could not maintain the commanded pump speed. CORRECTION Remove and replace the defective aftermarket electric water pump with an OEM-quality pump, clear DTC P261B, and verify commanded and actual pump speed remain consistent.

CUSTOMER CONCERN A 12-volt battery warning appears, the vehicle will not drive, and DTC P300000 is stored for hybrid battery discharge control. CAUSE The confirmed repair identified a failed 12-volt auxiliary battery. CORRECTION Remove and replace the failed 12-volt auxiliary battery, clear DTC P300000, and verify the vehicle enters Ready mode and drives normally.

CUSTOMER CONCERN Several instrument-panel fuse circuits have no voltage after an ignition-interlock installation. CAUSE The 50-amp J/B-B fuse in the engine-compartment fuse box was blown, removing power from multiple dash fuse circuits. CORRECTION Remove and replace the blown 50-amp J/B-B fuse and verify battery voltage is restored at the affected instrument-panel fuses.

CUSTOMER CONCERN After collision repairs, the parking-assist system stores DTCs C1AED and C1AF8 for rear sensor communication faults. CAUSE The rear intelligent-clearance sonar sensors had not been correctly aimed and registered after the collision repair. CORRECTION Perform the rear ultrasonic-sensor detection-angle procedures and intelligent-clearance sonar registration, clear DTCs C1AED and C1AF8, and verify parking-assist operation.

CUSTOMER CONCERN The check-engine light returns with DTC P05A074 for active grille shutter actuator slipping after body repairs. CAUSE The active grille shutter assembly was missing the cover cap that retains the actuator, allowing the actuator and louver mechanism to slip. CORRECTION Remove and replace the damaged active grille shutter assembly, clear DTC P05A074, and verify the shutter completes its active test without slipping.