2017 Lexus IS300h child protector lock

1483-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53D89E)
The door cannot be opened from inside
the vehicle when the lock is set.
Unlock
Lock
These locks can be set to prevent chil-
dren from opening the rear doors. Push
down on each rear door switch to lock both rear doors.
The following functions can be set or canceled:
For instructions on customizing, refer to P. 657.
Rear door child-protector lock
1
2
Automatic door locking and unlocking systems
FunctionOperation
Speed linked door locking functionAll the doors are locked when the vehiclespeed is approximately 20 km/h (12 mph) or
higher.
Shift position linked door locking
function
Shifting the shift lever out of P locks all the
doors.
Shift position linked door unlocking functionAll doors are automatically unlocked whenshifting the shift lever to P.
Driver’s door linked door unlocking
function
All doors are automatically unlocked when
driver’s door is opened.

1503-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53D89E)
■Impact detection door lock release system
In the event that the vehicle is subject to a strong impact, all the doors are unlocked. Depending on the force of the impact or the type of accident, however, the system may
not operate.
■Using the mechanical key
The doors can also be locked and unlocked with the mechanical key. ( P. 628)
■Conditions affecting the operation of the smart entry & start system or wireless remote
control
 P. 159
■Customization
Settings (e.g. unlocking function using a key) can be changed. (Customizable features: P. 657)
WARNING
■To prevent an accident
Observe the following precauti ons while driving the vehicle. Failure to do so may result in a door open ing and an occupant being thrown out of the
vehicle, resulting in death or serious injury.
●Ensure that all doors are properly closed.
●Do not pull the inside handle of the doors while driving.
Be especially careful with the front doors, as the doors may be opened even if the
inside lock buttons ar e in locked position.
●Set the rear door child-protector locks when children are seated in the rear seats.

668
IS300h_EE(OM53D89E)
What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be made
by any authorized Lexus retailer or Lexu s authorized repairer, or any reliable
repairer. ( P. 140)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any
reliable repairer immediately. ( P. 143)
●Is the electronic key battery weak or depleted? (P. 549)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. (P. 220)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly du e to the condition of the radio wave.
( P. 159)
●Is the child-protector lock set?
The rear door cannot be opened from in side the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
( P. 148)
If you have a problem, check the following before contacting any authorized
Lexus retailer or Lexus authorized re pairer, or any reliable repairer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

674Alphabetical index
IS300h_EE(OM53D89E)
Card key.................................................... 138
Care ............................................... 502, 506
Aluminum wheels ............................. 503
Exterior....................................................502
Interior .................................................... 506
Seat belts ................................................507
Cargo hooks.......................................... 488
Caution label .............................................. 81
CD player ................................................ 396
Chains ....................................................... 362
Child restraint system ............................ 59
Baby seats, definition ..........................60
Baby seats, installation .......................68
Child seats, definition..........................60
Child seats, installation.......................68
Installing CRS with ISOFIX
rigid anchors.......................................... 71
Installing CRS with seat belts..........68
Installing CRS with top strap ...........72
Junior seats, definition ........................60
Junior seats, installation ..................... 70
Child safety ................................................ 58
12-volt battery
precautions ........................... 524, 634
Airbag precautions ............................. 45
Child restraint system ........................ 59
How your child should
wear the seat belt.............................. 40
Installing child restraints .....................67
Moon roof precautions .................. 200
Power window lock switch ............ 193
Power window precautions........... 196
Rear door child-protectors ............148
Removed electronic key
battery precautions.........................551
Seat belt precautions........................... 42
Seat heater precautions ................. 479
Trunk precautions ..............................155
Child-protectors ................................... 148
Cleaning....................................... 502, 506
Aluminum wheels..............................503
Exterior ................................................... 502
Interior.....................................................506
Seat belts ............................................... 507
Clock ...........................................................491
Coat hooks.............................................. 495
C

676Alphabetical index
IS300h_EE(OM53D89E)
Doors .......................................................... 144
Automatic door locking and
unlocking system............................. 148
Door lock ................................................. 147
Open door warning buzzer ..........145
Open door warning
light ........................................................ 577
Outside rear view mirrors.............. 189
Rear door child-protector ............ 148
Side windows.........................................193
Drive information..................................... 116
Driver’s and front passenger’s
seat belt reminder light ................... 577
Driver’s seat position memory .......... 177
Driving ....................................................... 202
Break-in tips .........................................203
Correct driving posture .................... 36
Driving mode select switch ..........348
Hybrid vehicle driving tips ........... 358
Procedures ........................................... 202
Winter drive tips...................................361
Dynamic radar cruise control.......... 293
E-mail ........................................................ 429
ECB (Electronically Controlled
Brake System) .................................... 352
Eco drive mode ..................................... 348
Elapsed time .................................. 130, 134
Electric motor (traction motor) .......... 77
Electric Power Steering (EPS) ....... 352
Warning light....................................... 576
Electronic key ......................................... 138
Battery-saving function ....................158
If the electronic key does not
operate properly ............................ 628
Replacing the battery ...................... 549
E