Lexus GS350 Owner's Manual page 214

212
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
●
released using the parking brake switch.
When the engine switch is not in IGNITION ON mode, automatic mode (automatic
●
brake setting and releasing) is not available.
If the parking brake is operated repeatedly over a short period of time, the system may
●
restrict operation to prevent overheating. If this happens, refrain from operating the
parking brake. Normal operation will return after about 1 minute.
In situations such as when parking on a steep slope
●
force can be used by pressing the parking brake switch with the parking brake already
set.
*
: Use wheel chocks when parking on a steep slope.
Parking brake operation sound
■
When the parking brake operates, a motor sound (whirring sound) may be heard. This
does not indicate a malfunction.
Parking brake indicator light
■
Depending on the engine switch mode, the parking brake indicator light will come on
●
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-
●
cator light will stay on for about 15 seconds. This does not indicate a malfunction.
When there is a malfunction in the system
■
Warning lights and/or warning message will turn on or flash. (→P. 436, 442)
Depending on the condition, the parking brake indicator light may flash.
Parking the vehicle
■
→P. 182
Parking brake engaged warning buzzer
■
→P. 445
Usage in winter time
■
→P. 297
NOTICE
When parking the vehicle
■
Before you leave the vehicle, set the parking brake, shift the shift lever to P and make
sure that the vehicle does not move.
When the system malfunctions
■
Stop the vehicle in a safe place and check the warning messages.
When the parking brake cannot be released due to a malfunction
■
Use the parking brake release tool to manually release the parking brake. (→P. 499)
Driving the vehicle with the parking brake set will lead to brake components overheat-
ing, which may affect braking performance and increase brake wear.
GS350_300_GS F_OM_OM30G34U_(U)
*
, the maximum amount of braking