2015 LEXUS RX350 horn

7905-2. Steps to take in an emergency
Emergency start function
When the engine does no t start, the following s teps can be used as an
interim measure to start the engine if the “ENGINE START STOP” switch
is functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the “ENGINE START STOP” switch to ACCESSORY
mode.
Press and hold the “ENGINE START STOP” switch for about 15
seconds while depressing the brake pedal firmly.
Even if the engine can be started using the above step s, the system may
be malfunctioning. Have the vehicl e inspected by your Lexus dealer.■ The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem:
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. (  P. 7 9 6 )
● There may be a malfunction in the steering lock system.Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3
STEP 4

875Alphabetical index
Fuel
Capacity................................................ 808
Fuel gauge ................................................191
Fuel pump shut off system .............743
Information............................................. 818
Refueling ................................................. 105
Type........................................................... 818
Fuel door....................................................105
Fuel filler door..........................................105
Fuel pump shut off system .................743
Fuses.......................................................... 703
Garage door opener...........................632
Gauges........................................................ 191
Glove box ............................................... 599
Hands-free system for
mobile phone* ........................433, 560
Hazard lights
Switch ......................................................734
Head restraints
Adjustment ............................................... 81
Headlight aim .......................................... 717
Headlight cleaner .................................226
Headlights
Discharge headlight
precautions ........................................732
Replacing light bulbs ......................... 719
Switch .......................................................... 211
Wattage ................................................... 817
Head-up display
Display contrast adjustment
switch ................................................... 206
Display position adjustment
switch ................................................... 206 Head-up display main switch ..... 206
Heaters
Seat heaters ......................................... 620
Side mirrors* ......................................... 361
Steering wheel...................................... 619
Hill-start assist control ........................ 276
Hood .......................................................... 667
Hooks
Cargo ...................................................... 627
Coat..........................................................623
Horn ............................................................ 190
HUD
Display contrast adjustment
switch................................................... 206
Display position adjustment
switch................................................... 206
Head-up display main switch ..... 206
I/M test...................................................... 663
Identification
Engine..................................................... 807
Vehicle ................................................... 807
Ignition switch.......................................... 165
Illuminated entry system ....................595
Immobilizer system .................................110
Indicator lights......................................... 194
Initialization
Items to initialize .................................847
Inside rear view mirror .......................... 92
Instrument panel light control
buttons .................................................... 192G
H
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”. I

882What to do if...
What to do if... A tire punctures P. 7 74
If you have a flat tire
The engine does not start P. 7 8 9
If the engine will not start P. 1 1 0
Engine immobilizer system P. 7 9 6
If the vehicle battery is discharged
The shift lever cannot be
moved out P. 7 9 1
If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood P. 7 9 9
If your vehicle overheats
The key is lost P. 7 9 2
If you lose your keys
The battery runs out P. 7 9 6
If the vehicle battery is discharged
The doors cannot be locked P. 5 2
Side doors P. 5 6
Back door
The horn begins to sound P. 1 1 2
Alarm
The vehicle is stuck in mud or
sand P. 8 0 2
If the vehicle becomes stuck