Acura RDX 2019 Owner's Manual page 106

uuIndicatorsuMulti-Information Display Warning and Information Messages
Message
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104
Condition
Appears if the automatic brake hold is automatically
canceled while it is in operation.
Appears when the electric parking brake switch is
pulled without depressing the brake pedal while the
electric parking brake is in operation.
Explanation
Immediately depress the brake pedal.
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Pull the electric parking brake switch with the brake
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pedal depressed.
2 Parking Brake P. 486