Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to idle a car [title] Turn on the car. [step] On the right side of the steering column of most cars, you'll find the ignition slot for the key. Insert your key into the ignition and turn it halfway to turn on the car's power.

Ending1: [substeps] Many have a personalized ignition head button on the front (head when turning on) and may even have a face-reading button on the bottom. If this button is turned on, your car will operate as your idle (as you don't need to turn it on). Ending2: Keep turning until you hear the key click into place. [title] Remove the gear housing from the ignition and locate the gear ball. Ending3: To turn off the car before you set it off, simply increase or decrease the speed of the engine. [substeps] If you're on a newer silver honda civic, you can use the blue d button on the dashboard to turn off the car's power. Ending4: After that, continue to twist the key until you hear the engine start, then release the key. [substeps] Avoid holding the key in the engine starting position once the car is started.

Answer format: ending1/ending2/ending3/ending4