Starting System - Unable To Key In Ignition Switch

Can't Turn Ignition Switch? Check for Locked Steering

Got a service customer complaining he or she can't turn the ignition switch to start the engine? The reason could just be the steering column lock pin is engaged with the front wheels turned. Here's what typically happens:

Some folks use the steering wheel to help support themselves while climbing in or out of the vehicle. This is very common among elderly or disabled drivers. Doing this turns the front wheels, which twists the tires against the ground. The twisted tires apply torque to the steering column. With the ignition switch in LOCK (0), the steering column lock pin is engaged. But the applied torque on the steering column binds the lock pin, making it tough to turn the ignition switch. The ignition switch won't turn to ON (II) if the lock pin isn't disengaged from the steering column.

Tell your customer there's nothing wrong with the ignition switch itself. All he or she needs to do is turn the steering wheel from side to side while turning the switch. This usually releases the lock pin so the engine can be started. In some cases, though, your customer may need to give a good tug on the wheel. This could easily happen when parking on a hill and the wheels are turned sharply before the engine is shut off.