2010 Lexus RX 450h User Guide 2 - Page 221

2-4. Using other driving systems CAUTION n To avoid operating the cruise control by mistake Switch the cruise control off using the "ON-OFF" button when not in use. n Situations unsuitable for cruise control Do not use cruise control in any of the following situations. Doing so may result in loss of control and could cause an accident resulting in death or serious injury. l In heavy traffic l On roads with sharp bends l On slippery roads, such as those covered with rain, ice or snow l On winding roads l On steep hills 2 When driving Vehicle speed may exceed the set speed when driving down a steep hill. l When your vehicle is towing anything 223