Speed Control - Description & Operation: Introduction

There are two variants of speed control available, a standard system and an adaptive system. The standard system maintains a set speed selected by the driver until operation is suspended or cancelled by a further input from the driver and is controlled by the ECM. The adaptive system includes the same functionality as the standard system, but also has the ability to:

• Reduce vehicle speed, to less than the set speed, in order to maintain a selected distance behind a slower moving vehicle
• Accelerate the vehicle back to the set speed, once the way ahead is clear, after reducing the set speed because of a slower moving vehicle
• Alert the driver when the vehicle comes within a given distance of a slower moving vehicle

The standard system and the adaptive system both have the following components:

• A set +/- switch
• A RESUME switch
• A CANCEL switch

Both systems also use:

• The ECM.
• The brake switch.
• The APP sensor.

The adaptive system incorporates the following additional components:

• An adaptive speed control module
• An adaptive speed control sensor
• A forward alert switch