To replace the ignition lock the air bags will probably need to be dis armed so you will need accurate detailed instructions preferable with illustrations. Autozone have many popular brand vehicle workshop manuals on line for free once you register on their website. There is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You get a one year subscription to year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual. http://www.alldatadiy.com/ My labor guide shows the time to replace the cylinder is about 1 hour.