Lexus GS350 Owner's Manual page 447

Warning message
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GS350_300_GS F_OM_OM30G34U_(U)
7-2. Steps to take in an emergency
Details/Actions
Indicates that the vehicle is being driven at 3 mph (5 km/h)
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 your Lexus dealer
immediately.
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.
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