Ignition Cylinder Replacement Near Me Replace your ignition cylinder if the ignition key isn't able to turn or you have difficulty starting your vehicle. You can find DIY videos on the internet for your particular year and model of vehicle on how to do this yourself. A professional locksmith in the automotive industry will identify your issues and offer practical solutions. This usually means replacing or repairing the ignition switch and/or the locking cylinder. Cost The ignition lock cylinder is the key set-up and wafer tumbler integrated within your car ignition switch's ignition switch, and like most automobile parts, it will get worn down over time. A malfunctioning ignition lock cylinder can prevent the ignition switch from rotating and even if the ignition switch is working, you may not be able to start your vehicle. Fortunately, a replacement can generally be done in less than an hour. The cost of replacing an ignition cylinder ranges from $50-$250.