Lexus 2016 GS350 Owner's Manual page 239

WARNING
Pre-collision braking
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The pre-collision braking function may not operate if certain operations are per-
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formed by the driver. If the accelerator pedal is being depressed strongly or the steer-
ing wheel is being turned, the system may determine that the driver is taking evasive
action and possibly prevent the pre-collision braking function from operating.
In some situations, while the pre-collision braking function is operating, operation of
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the function may be canceled if the accelerator pedal is depressed strongly or the
steering wheel is turned and the system determines that the driver is taking evasive
action.
A large amount of braking force is applied while the pre-collision braking function is
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operating. As the pre-collision braking function will be canceled after the vehicle has
been stopped for approximately 2 seconds, the driver should depress the brake
pedal as necessary.
If the brake pedal is being depressed, the system may determine that the driver is tak-
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ing evasive action and possibly delay the operation timing of the pre-collision braking
function.
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: Depending on the region in which the vehicle was sold, the pre-collision braking
function may not be available.
When to disable the pre-collision system
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In the following situations, disable the system, as it may not operate properly, possibly
leading to an accident resulting in death or serious injury:
When the vehicle is being towed
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When your vehicle is towing another vehicle
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When transporting the vehicle via truck, boat, train or similar means of transportation
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When the vehicle is raised on a lift with the engine running and the tires are allowed to
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rotate freely
When inspecting the vehicle using a drum tester such as a chassis dynamometer or
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speedometer tester, or when using an on vehicle wheel balancer
When a strong impact is applied to the front bumper or front grille, due to an accident
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or other reasons
If the vehicle cannot be driven in a stable manner, such as when the vehicle has been
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in an accident or is malfunctioning
When the vehicle is driven in a sporty manner or off-road
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When the tires are not properly inflated
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When the tires are very worn
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When tires of a size other than specified are installed
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When tire chains are installed
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GS350/GS200t: When a compact spare tire or an emergency tire puncture repair
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kit is used
GS F: When a spare tire or an emergency tire puncture repair kit is used
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GS350_200t_GS F_OM_OM30E86U_(U)
4-5. Using the driving support systems
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