2016 LEXUS RX350 radiator

6698-2. Steps to take in an emergency
8
When trouble arises
RX350_U_OM48E90U Add coolant if necessary. Water can be used in an emergency if
coolant is unavailable.
Start the engine and turn the air conditioning system on to check that the radi-
ator cooling fans operate and to check for coolant leaks from the radiator or
hoses. The fans operate when the air conditioning system is turned on immediately after a
cold start. Confirm that the fans are oper ating by checking the fan sound and air flow.
If it is difficult to check these, turn the air conditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately an d contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.
Check if “Engine Coolant Temp High St op in a Safe Place See Owner’s Man-
ual” is shown on the multi-information display.
If the message does not disappear:
Stop the engine and contact your Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer. 5
6
7
8

670 8-2. Steps to take in an emergency
RX350_U_OM48E90U WA R N I N G ■
To prevent an accident or injury when in specting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns. ●
If steam is seen coming from under the h ood, do not open the hood until the steam
has subsided. The engine compartment may be very hot. ●
Keep hands and clothing (especially a tie, a scarf or a muffler) away from the fans and
belts. Failure to do so may cause the hands or clothing to be caught, resulting in seri-
ous injury. ●
Do not loosen the radiator cap and the c oolant reservoir cap while the engine and
radiator are hot.
High temperature steam or coolant could spray out.
NOTICE ■
When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. Adding cool coolant
to a hot engine too quickly can cause damage to the engine. ■
To prevent damage to the cooling system
Observe the following precautions: ●
Avoid contaminating the coolant with foreign matter (such as sand or dust etc.). ●
Do not use any coolant additive.

741Alphabetical index
RX350_U_OM48E90U Odometer ................................................ 103
Oil
Engine oil................................................676
Rear differential oil .............................679
Transfer oil .............................................679
Opener
Hood ........................................................ 572
Power back door .................................. 131
Outside rear view mirrors .................. 173
Adjusting and folding.........................173
Blind Spot Monitor (BSM)........... 355
Linked mirror function when
reversing .............................................. 175
Mirror position memory .................. 162
Outside rear view mirror
defoggers .......................................... 500
Outside temperature display ............. 85
Overheating ........................................... 668
Paddle shift switches ................. 230, 231
Panic mode ................................................ 121
Panoramic moon roof ......................... 185
Jam protection function ................... 186
Operation ............................................... 185
Parking brake......................................... 235
Parking brake engaged
warning buzzer/message.......... 237
Warning light ...................................... 635
Parking lights
Light switch .............................................241
Replacing light bulbs ......................... 610
PCS (Pre-Collision System) ............ 270
Warning light ...................................... 636 Personal lights .........................................510
Power back door ...................................130
Touchless power back door.......... 132
Wireless remote control................. 130
Power back door opener and
closer .......................................................130
Power easy access system ................. 162
Power outlets ............................... 531, 532
Power steering (Electric Power
Steering system).................................374
Warning light .......................................635
Power windows
Door lock linked window
operation .............................................. 179
Jam protection function....................178
Operation................................................ 177
Window lock switch .......................... 177
Pre-Collision System (PCS).............270
Warning light ....................................... 636
Radar cruise control (dynamic
radar cruise control).......................... 314
Radar cruise control
(dynamic radar cruise control
with full-speed range) ..................... 302
Radiator.....................................................579
Radio ........................................................... 416
Rear Cross Traffic Alert .................... 355
Rear door sunshades.......................... 534
Rear seat
Folding down the rear
seatbacks .............................................153
Rear seat heaters ................................. 507O
P R
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.