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.
Adaptive Cruise Control (ACC) System Description - Control/Function
Basic Controls of the ACC System with Low Speed Follow (LSF)
- The ACC system uses the millimeter wave radar to detect the leading vehicle, determines the target vehicle and measures the distance to the target vehicle and its vehicle speed (the system also uses the multipurpose camera as needed to determine the target vehicle based on the lane and vehicle position information).
- When there is no leading vehicle, your vehicle drives at the preset speed. When there is a leading vehicle, your vehicle follows the vehicle and drives within the preset speed.
Example driving pattern: vehicle-following in heavy traffic.
Example of driving pattern: Stop-in-traffic to vehicle-following
The system estimates the driving course based on your vehicle speed and yaw rate and detects a vehicle that enters the camera range and differentiate it from the leading vehicle using the lane and leading vehicle information from the multipurpose camera.
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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.