Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
UIS Sensor
The UIS Sensor (Ultrasonic) is mounted at the rear of the vehicle on the headliner. Every time the DWA is armed the UIS sensor adapts to whatever objects are stationary in the interior.
The sensor emits ultra sonic waves in a programmed timed cycle and receives echos of the returning waves. The UIS amplifies the returned sound wave signals and compares them with the transmitted waves. Similar echos received indicate no movement is detected. Inconsistent or altered returned signals indicate motion in the interior. When motion is detected the UIS changes to a constant rather than timed program and compares returning echos. If inconsistencies are still present the BC1 is notified of the motion.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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