automatic transmission Lexus GS450h 2010 Using The Audio System / LEXUS 2010 GS450H OWNERS MANUAL (OM30C81U)

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2-1. Driving procedures
2
When driving
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
■Downshifting restrictions warning buzzer (in the “S” mode)
To help ensure safety and driving performance, downshifting operation may some-
times be restricted. In some circumstances, downshifting may not be possible even
when the shift lever is operated. (The warning buzzer will sound twice.)
■When driving with the cruise control system (or dynamic radar cruise control sys-
tem)
The engine brake will not operate in the “S” mode, even when downshifting to “5” or
“4”. (P. 1 8 1P. 1 8 4 )
■Snow mode automatic deactivation
Snow mode is automatically deactivated if the “POWER” switch is turned to
ACCESSORY or ON mode after driving in snow mode.
■If the shift lever cannot be shifted from “P”
P. 5 7 3
■If the indicator does not come on even after shifting the shift lever to “S”
This may indicate a malfunction in the transmission. Have the vehicle inspected by
your Lexus dealer immediately. 
(In this situation, the vehicle will operate as if the shift lever is in “D”.)
■When in heavy traffic
To avoid running the hybrid battery (traction battery) down, leave the shift lever in
“D” or “S”.

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Alphabetical index
GS_HV_U (OM30C81U)
February 1, 2010 11:29 am
Safety Connect ......................................433
Seat belts
Adjusting the seat belt........................ 75
Automatic locking retractor............ 78
Child restraint system 
installation ............................................128
Cleaning and maintaining 
the seat belts ..................................... 446
Emergency locking retractor ......... 78
How to wear your seat belt............. 75
How your child should wear 
the seat belt .......................................... 78
Pre-collision seat belts ........................ 77
Pregnant women, 
proper seat belt use......................... 78
Reminder light .....................................536
Seat belt extenders .............................. 79
Seat belt pretensioners ....................... 77
Seat heaters/ventilators...................... 414
Seating capacity ..................................... 413
Seats
Adjustment............................................... 65
Adjustment precautions .................... 66
Child seats/child restraint 
system installation ............................128
Cleaning................................................. 445
Driver’s seat position memory....... 67
Head restraint.......................................... 72
Properly sitting in the seat .............. 105
Seat heaters ............................................ 413
Service reminder indicators ............. 165Shift lever
If the shift lever cannot be 
shifted from “P” ................................573
Transmission.......................................... 154
Shift lock system.................................... 573
Shopping bag hooks ............................. 421
Side airbags ..............................................107
Side marker lights
Switch .......................................................... 171
Side mirror
Adjusting and folding ......................... 85
Mirror position memory .................... 67
Smart access system with 
push-button start
Antenna location ................................... 43
Entry function ............................................41
Starting the 
hybrid system.....................................150
Spare tire
Inflation pressure ............................... 596
Storage location .................................. 561
Spark plug ............................................... 593
Specifications .........................................588
Speedometer ............................................ 161
Steering wheel
Adjustment ...............................................82
Audio switches ....................................342
Steering wheel position 
memory .................................................. 67
Storage compartment ........................ 403
Storage feature ..................................... 398
Stuck
If your vehicle becomes stuck .... 584
Sun visors ................................................. 406S