When is it advised not to use cruise control?

Cruise control should not be used in wet weather because it can lead to a loss of vehicle control. When the road is wet, the risk of hydroplaning increases significantly, which can happen when a vehicle's tires lose contact with the road surface and ride on top of the water instead. This can result in a sudden loss of steering control, making it difficult to respond to changing road conditions.

Using cruise control in these circumstances may prevent the driver from being able to react promptly to conditions, such as reduced traction or the need to slow down quickly. It's essential for drivers to maintain full control of their vehicles when conditions are slippery, and manual control allows for more responsive adjustments to speed and braking. Therefore, avoiding cruise control in wet weather enhances safety by ensuring that drivers remain fully engaged with their driving environment.