Toyota C-HR 2018 Owner's Manual page 266

266
4-5. Using the driving support systems
• When backing up on a slope with a
sharp change in grade
• When backing out of a shallow angle
parking spot
• Immediately after the RCTA function is set to on
• Immediately after the engine is started with the RCTA function is set to on
• When the sensors cannot detect a
vehicle due to obstructions
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