The CMBS™ may activate even when you are aware of a vehicle ahead of you, or when there is no vehicle ahead. Some examples of this are:
When Passing
Your vehicle approaches another vehicle ahead of you and you change lanes to pass.
At an intersection
Your vehicle approaches or passes another vehicle that is making a left or right turn.
On a curve
When driving through curves, your vehicle comes to a point where an oncoming vehicle is right in front of you.
Through a low bridge at high speed
You drive under a low or narrow bridge at high speed.
Speed bumps, road work sites, train tracks, roadside objects, etc.
You drive over speed bumps, steel road plates, etc., or your vehicle approaches train tracks or roadside objects [such as a traffic sign and guard rail] on a curve or, when parking, stationary vehicles and walls.
For the CMBS™ to work properly:
Always keep the radar sensor cover clean.
Never use chemical solvents or polishing powder for cleaning the sensor cover. Clean it with water or a mild detergent.
Do not paint, or apply any coverings or paint to radar sensor area. This can impact CMBS™ operation.
Have your vehicle checked by a dealer if you find any unusual behavior of the system (e.g. the warning message appears too frequently).
If the front of the vehicle is impacted in any of the following situations, the radar sensor may not work properly. Have your vehicle checked by a dealer:
The airbags have advanced features to help reduce the likelihood of airbag related injuries to smaller occupants.
The driver's advanced airbag system includes a seat position sensor.