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Smart Start Interlock User Guides

Find important information about using your interlock device and the conditions of your state program here.

Guides include:

  • How to start your vehicle - step by step interlock instructions
  • Caring for your interlock device
  • Interlock Display messages - table of messages, what they mean and the outcome
  • Interlock Random Rolling retest - retest parameters have been set by your relevant government authority. Please remember when you have arrived at your destination to check the device screen before exiting the vehicle.
  • Common causes of unexpected beath sample violations

Select from the State based PDF user guides below.

For more information regarding your State based Mandatory Alcohol Interlock Program please visit Manage your Program page.