Pedestrian Protection System: Service and Repair

SERVICE AFTER A PEDESTRIAN PROTECTION DEPLOYMENT

COMPONENT REPLACEMENT AND INSPECTION REQUIREMENTS

There are two types of Electronic Pedestrian Protection (EPP) system deployments that may occur: pedestrian and non-pedestrian. Following either type of deployment, the Electronic Vehicle Information Center (EVIC) within the Instrument Cluster (IC) (also known as the Common Instrument Cluster/CIC) will display a SERVICE ACTIVE HOOD message and the airbag indicator will be illuminated. To make sure continued system integrity, certain components must be replaced or inspected following a deployment based upon the deployment type.

PEDESTRIAN DEPLOYMENT

The following components must be replaced following a pedestrian deployment:

- Right and left EPP hood hinge actuators
- Right and left active hood hinges
- Hood panel

The following components must be closely inspected, then replaced if any damage is visually evident following a pedestrian deployment:

- EPP impact sensors
- EPP impact sensor wiring
- Front bumper energy absorber foam material (inspect for compression, cracks and any other signs of deformation or deterioration)
- Front bumper support beam (reinforcement)
- Front fascia
- Front fascia brackets
- Hood latch/secondary catch unit
- Hood latch striker
- Pedestrian bar (see NOTE)

NOTE: The pedestrian bar MUST be inspected and replaced if visually damaged following ANY frontal vehicle impact, regardless of whether the active hood is deployed or how the impact occurred.

NON-PEDESTRIAN DEPLOYMENT

The following components must be replaced following a non-pedestrian deployment:

- Right and left EPP hood hinge actuators
- Right and left active hood hinges

The following components must be closely inspected, then replaced if any damage is visually evident following a non-pedestrian deployment:

- EPP impact sensors
- EPP impact sensor wiring
- Front bumper energy absorber foam material (inspect for compression, cracks and any other signs of deformation or deterioration)
- Front bumper support beam (reinforcement)
- Front fascia
- Front fascia brackets
- Hood latch/secondary catch unit
- Hood latch striker
- Hood panel
- Pedestrian bar (see NOTE 2)

NOTE:
1. In order to guarantee continued Electronic Pedestrian Protection (EPP) system integrity, the hood panel MUST be replaced following three EPP deployments, regardless of how the active hood is deployed or the results of any visual inspection.
2. The pedestrian bar MUST be inspected and replaced if visually damaged following ANY frontal vehicle impact, regardless of whether the active hood is deployed or how the impact occurred.

ACTIVE HOOD HINGE RESET PROCEDURE

If the vehicle remains otherwise safely operable following an EPP deployment, a customer reset position for the active hood hinges is provided to restore adequate forward visibility to drive the vehicle to the nearest dealer for service. Proceed as follows to engage the deployed active hood hinges in the reset position:

1. Push downward on one rear corner of the hood panel.

NOTE: The initial 15 millimeters (0.60 inch) of travel will require significant effort, up to 300 Newtons (68 pounds) of force. After the initial travel, the deployed EPP actuators will vent and the required force to push the hood downward will be reduced.

2. Continue pushing the hood downward until the active hinge reset mechanism engages. The C shaped reset spring on the hinge mid-strap will come into contact with the hood bracket and the resistance will increase. Provide an additional downward force (a soft bump downward) on the hood to cause the reset spring to compress, then snap into the detent notch in the hood bracket. The rear edge of the hood will be raised about 5 millimeters (0.20 inch) higher than the fender when the active hood hinge is in the reset position.
3. Repeat Steps 1 and 2 on the opposite rear corner of the hood panel.