2009 Toyota Highlander Owners Manual - Page 201

2-1. Driving procedures n Environmentally friendly driving Environmentally friendly driving can be achieved by driving within the variable economy zone. The variable economy zone indicator will come on when the vehicle reaches a speed of 2.5 mph (4 km/h) with the shift lever in D. The variable economy indicator will go off when the vehicle speed falls below 1.2 mph (2 km/h) or the shift lever is shifted to a position other than D. n Brake actuator The brake actuator uses brake fluid pressurized by the pump to power-assist the brakes. If the brake actuator fails during driving, the brake system warning light comes on and the buzzer sounds continuously. In this case, the brakes may not work properly. If they do not work well, depress the brake pedal firmly. If the brake system warning light comes on, immediately stop your vehicle and contact your Toyota dealer. In the following conditions, you may hear a sound in the engine compartment. This is not a malfunction. l The driver's door is opened with the hybrid system turned off. l The brake pedal is depressed with the hybrid system turned off. l After the hybrid system is turned on. l The brake pedal is depressed repeatedly with the hybrid system turned on. l After the hybrid system is turned off. The brake pedal may be hard to depress or the brake pedal stroke may be short before turning the hybrid system on. This is not a malfunction. n When braking the vehicle When applying brakes, you may hear a sound coming from the motor generator. However, this does not indicate any trouble. 2 When driving 171