Has it been awhile since you changed your Kaba Simplex 1000 Series code and have you forgotten how to do it? Did you lose your manual? Did you move into a location where one of these Simplex 1000 Pushbutton locks is installed and you only know the code? Well let us help you. There are specific steps to changing the combination as long as you know what the combination is and you have access to the interior side of the door. Make sure you verify you have the Kaba Simplex 1000 lock type before you begin any of the change code procedures. DO NOT use this if you do not know the code to your lock. You will need to call a local locksmith.

Simplex 1000 series

CAUTION: The door MUST BE open during this entire procedure.

Photo of Kaba Simplex 1000 Series Door Lock

On models with the passage feature, make sure the passage feature is disengaged. The knob must be in its vertical position i.e. it cannot be turned.

Step 1: Insert the DF-59 control key into the combination change plug assembly (located on the back) and unscrew the cylinder by turning the key counterclockwise. Remove the combination change plug to gain access to the combination change sleeve.

Step 2: Turn the outside knob once clockwise (all the way, until it stops) then release.

The latch should not retract.

Step 3: Enter the existing combination. You should feel a slight click as each button is depressed.

Step 4: Insert the spanner wrench to engage the combination change sleeve. Gently turn the spanner wrench clockwise to the stop position (a slight click should be felt), then turn the spanner wrench counterclockwise to the stop position. Remove the spanner wrench.

Step 5:Turn the outside knob once clockwise all the way until it stops, then release. The latch should not retract.

Step 6: Choose your new combination, write it down, then enter the new combination — depress buttons care-fully (a slight click should be felt as each button is depressed). At least 3 digits are recommended in the code.

Note:You can use one button or all five for a combination, but each button can only be used once. You can depress two or more buttons simultaneously as a step in the combination.

Step 7: Turn the outside knob clockwise once, all the way, until it stops, hold in position and make sure the latch is retracted. Release the knob.

Step 8: Turn the knob clockwise again to the stop position. At this point, the latch should not retract unless you enter the new combination.

Step 9: Re-secure the combination change plug assembly by screwing it in clockwise with the DF-59 key — do not over tighten. Remove the key and store it in a secure area with these instructions and the spanner wrench.