Lexus GS 450h 2008 Owner's Manual page 188

2-4. Using other driving systems
■
Rear corner sensor
Approximate distance to obstacle
1.5 ft. (50 cm) to 1.1 ft. (37.5 cm)
1.1 ft. (37.5 cm) to 0.8 ft. (25 cm)
Less than 0.8 ft. (25 cm)
■ Back sensor
Approximate distance to obstacle
5.0 ft. (150 cm) to 2.0 ft. (60 cm)
2.0 ft. (60 cm) to 1.4 ft. (45 cm)
1.4 ft. (45 cm) to 1. 1 ft. (35 cm)
Less than 1.1 ft. (35 cm)
186
Touch screen
(blinking)
(blinking rapidly)
(continuous)
Touch screen
(blinking slowly)
(blinking)
(blinking rapidly)
(continuous)