Lexus NX: System Description
Lexus NX Service Manual / Vehicle Exterior / Acoustic Vehicle Alerting System / Acoustic Vehicle Alerting System / System Description
SYSTEM DESCRIPTION
Vehicle Proximity Notification System
(a) When the vehicle is being driven quietly using the motor only, the vehicle proximity notification system outputs a warning sound from the vehicle approaching speaker assembly to inform pedestrians, cyclists etc., of the approach of the vehicle.
(b) The warning sound is output by the vehicle approaching speaker assembly at a volume level that will not be perceived as noise. Also the pitch of the sound changes in accordance with vehicle speed so that the sound reflects vehicle deceleration and acceleration.
(c) Vehicle proximity notification system operation automatically stops when the vehicle is stopped, the engine starts or the vehicle is driven at 35 km/h (22 mph) or more.
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the vehicle proximity notification system.
*: Use the GTS.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEX
Operation Check
OPERATION CHECK VEHICLE PROXIMITY NOTIFICATION SYSTEM OPERATION CHECK (a) System operation check (vehicle stopped) (1) Apply the parking brake. (2) Turn the power switch on (IG). (3) With the brake pe
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of
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Unable To Connect To Call Center
DESCRIPTION This may occur when the intensity of telephone radio frequency was very weak or the safety connect system has a malfunction and a DTC is stored. PROCEDURE 1. CHECK COMMUNICATION SERVICE CONDITION (a) Move the vehicle. (1) If the vehicle is outside the communication service area,
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
The needle of the engine coolant
temperature gauge
enters the red zone, or a loss of
hybrid system power is experienced.
(For example, the vehicle
speed does not increase.)
"Engine Coolant Temp High" or
"Hybrid System Ov
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