Lexus GS 350 Owner's Manual page 237

236
4-2. Driving procedures
Parking brake operation
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When the engine switch is not in IGNITION ON mode, the parking brake cannot be
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released using the parking brake switch.
When the engine switch is not in IGNITION ON mode, automatic mode (automatic
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brake setting and releasing) is not available.
If the parking brake is operated repeatedly over a short period of time, the system may
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restrict operation to prevent overheating. If this happens, refrain from operating the
parking brake. Normal operation will return after about 1 minute.
Vehicles without towing package: In situations such as when parking on a steep slope
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the maximum amount of braking force can be used by pressing the parking brake
switch with the parking brake already set.
Vehicles with towing package: In situations such as when parking while towing a trailer,
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the maximum amount of braking force can be used by pressing the parking brake
switch with the parking brake already set.
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: Use wheel chocks when parking on a steep slope.
Parking brake operation sound
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When the parking brake operates, a motor sound (whirring sound) may be heard. This
does not indicate a malfunction.
Parking brake indicator light
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Depending on the engine switch mode, the parking brake indicator light will come on
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and stay on as described below:
IGNITION ON mode: Comes on until the parking brake is released.
Not in IGNITION ON mode: Stays on for approximately 15 seconds.
When the engine switch is turned off with the parking brake set, the parking brake indi-
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cator light will stay on for about 15 seconds. This does not indicate a malfunction.
When there is a malfunction in the system
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Warning lights and/or warning message will turn on or flash. (P. 519, 524)
Depending on the condition, the parking brake indicator light may flash.
Parking the vehicle
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P. 204
Parking brake engaged warning buzzer
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P. 528
Usage in winter time
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P. 357
GS350_300_GS F_OM_OM30J17E_(GE)
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