On 2014 and older models, you need to replace the steering knuckle if it gets broken. Before starting, loosen both wheel lug nuts and hub/driveaxle bolt, raise the car on jackstands, and make sure it won't move. First take off the wheel, then loosen the driveaxle/hub nut. First separate the brake disc and then take off the ABS front wheel speed sensor. Unclip the tie-rod end from the knuckle and split the balljoint from the control arm. Take out the bolt(s) holding the steering knuckle to the strut, and remember where they go. Keep the alignment when reinstalling the strut assembly by making notes on how the cam bolt fits into the lower slotted hole. Take out the broken knuckle from the strut, pry the driveaxle slide off the hub, and hang it in a safe place. To install it back, follow the same removal steps but make sure all suspension parts are fastened correctly. To complete the job, put back the wheel, drive the car to the ground, tighten all lug nuts, and then tighten the wheel-axle hub nut. Make sure the front end alignment is correct, then adjust it if needed.