Limitations of Road Sign Information*

Updated 03/19/2020

The Road Sign Information (RSI1) function may have limitations in certain situations.

Examples of what can reduce the function are as follows:

Faded signs
Signs positioned on bends
Rotated or damaged signs
Signs positioned high above the roadway
Fully/partially obscured or poorly positioned signs
Signs completely or partly covered with frost, snow and/or dirt
Digital road maps2 are out-of-date, inaccurate or have no speed information3

Note

In certain markets, the Road Sign Information function* is only available in combination with Sensus Navigation*.

Note

The RSI function may interpret some types of bicycle rack, connected to the electrical socket for trailers, as a connected trailer. In such cases, the driver display may show incorrect speed information.

Note

This function uses the car's camera and radar units, which have certain general limitations.