Lexus GS450h Owner's Manual page 472

472
7-2. Steps to take in an emergency
Warning message
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GS450h_300h_OM_OM30F92E_(EE)
Indicates that the vehicle is being driven at 5 km/h
(3 mph) or more with the parking brake still engaged.
A buzzer also sounds.
 Release the parking brake.
Indicates that the parking brake is engaged with the shift
position not in P
A buzzer also sounds.
 Change the shift position to P.
Indicates a malfunction in the brake hold system
A buzzer also sounds.
 Depress the brake pedal to turn off the brake hold
system.
Have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable
repairer.
Indicates that the brake hold system is turned on while on
a steep slope
A buzzer also sounds.
 Do not use only the brake hold system on steep
slopes. Be sure to also depress the brake pedal.
Indicates a malfunction in the parking brake system
A buzzer also sounds.
 Press the parking brake switch. If the warning mes-
sage is still displayed, have the vehicle inspected by
any authorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
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