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.
Speed Control (G2224381): Overview
There are 3 variants of speed control available:
- A standard speed control system
- An adaptive speed control system
- A speed limiter system.
The standard speed control system maintains a set speed selected by the driver. Operation of the system is controlled by the Powertrain Control Module (PCM). The operation is suspended or cancelled by a further input from the driver.
The adaptive speed control system includes the same functionality as the standard system, but also has the ability to:
- Automatically reduce vehicle speed, to less than the set speed, in order to maintain a selected time gap behind a slower moving vehicle.
- Automatically 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 time gap of a slower moving vehicle (forward alert feature).
The speed limiter system restricts the vehicle speed to an adjustable preset maximum and will prevent the vehicle exceeding that speed.
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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.