2013 Lexus GS450h service indicator

761-2. Hybrid system
GS450h_U (OM30D01U)
■If a warning light comes on, a warning message is displayed, or the 12-volt battery is
disconnected
The hybrid system may not start. In that case, try to start the system again. If the
“READY” indicator does not come on, contact your Lexus dealer.
■Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be started, refuel
the vehicle with at least enough gasoline to make the low fuel level warning light
(  P. 714) go off. If there is only a small amount of fuel, the hybrid system may not be
able to start. (The minimum amount of fuel to add to make the low fuel level warning
light go out is about 2.6 gal. [10.0 L, 2.2 Imp.gal.], when the vehicle is on a level sur-
face. This value may vary when the vehicle is on a slope.)
■Electromagnetic waves
●High voltage parts and cables on the hybr id vehicles incorporate electromagnetic
shielding, and therefore emit approximately the same amount of electromagnetic
waves as conventional gasoline powered vehicles or home electronic appliances.
●Your vehicle may cause sound interference in some third party-produced radio
parts.
■Hybrid battery (traction battery)
The hybrid battery (traction battery) has a limited service life. The lifespan of the
hybrid battery (traction battery) can change in accordance with driving style and
driving conditions.

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GS450h_U (OM30D01U)5-7. Other interior features
5
Interior features
Safety Connect
“SOS” button
LED light indicators
Microphone 
: If equipped
Safety Connect is a subscription-based telematics service that uses
Global Positioning System (GPS ) data and embedded cellular technol-
ogy to provide safety and security fe atures to subscribers. Safety Con-
nect is supported by Lexus’ designated response center, which
operates 24 hours per day, 7 days per week.
Safety Connect service is available by subscription on select, telemat-
ics hardware-equipped vehicles.
By using the Safety Connect servic e, you are agreeing to be bound by
the Telematics Subscription Service Agreement and its Terms and
Conditions, as in effect and amen ded from time to time, a current copy
of which is available at Lexus.co m. All use of the Safety Connect ser-
vice is subject to such then-applicable Terms and Conditions.
System components
1
2
3

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GS450h_U (OM30D01U)
5-7. Other interior features
When the power switch is turned to ON mode, the red indicator light
comes on for 2 seconds then turns off. Afterward, the green indicator light
comes on, indicating that the service is active.
The following indicator light patter ns indicate specific system usage con-
ditions:
●Green indicator light on = Active service
●Green indicator light flashing = Safety Connect call in process
●Red indicator light (except at vehicle start-up) = System malfunction
(contact your Lexus dealer)
●No indicator light (off) = Safety Connect service not active
■Automatic Collision Notification
In case of either airbag deployment or severe rear-end collision, the
system is designed to automatically call the response center. The
responding agent receives the vehicl e’s location and attempts to speak
with the vehicle occupants to assess the level of emergency. If the occu-
pants are unable to communicate, th e agent automatically treats the
call as an emergency, contacts th e nearest emergency services pro-
vider to describe the situation, and re quests that assistance be sent to
the location.
Safety Connect LE D light Indicators
Safety Connect services

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GS450h_U (OM30D01U)
6-2. Maintenance
Emission inspection and maintenance (I/M)
programs
The OBD system determines that a problem exists somewhere in the
emission control system. Your vehicl e may not pass the I/M test and may
need to be repaired. Contact your Lexus dealer to service the vehicle.
●When the 12-volt battery is disconnected or discharged
Readiness codes that are set dur ing ordinary driving are erased.
Also, depending on your driving ha bits, the readiness codes may not be
completely set.
●When the fuel tank cap is loose
The malfunction indicator lamp co mes on indicating a temporary mal-
function and your vehicle may not pass the I/M test.
The error code in the OBD system will no t be cleared unless the vehicle is
driven 40 or more times.
Contact your Lexus dealer to prepare the vehicle for re-testing.
Some states have vehicle emission in spection programs which include
OBD (On Board Diagnostics) checks . The OBD system monitors the
operation of the emission control system.
If the malfunction indicator lamp comes on
Your vehicle may not pass the I/M test in the following situations:
When the malfunction indicator lamp still remains on after several
driving trips
If your vehicle does not pass the I/M test

GS450h_U (OM30D01U)
7938-1. Specifications
8
Vehicle specifications
■Recommendation of the use of gasoline containing detergent additives
●Lexus recommends the use of gasoline that contains detergent additives to avoid
the build-up of engine deposits.
●All gasoline sold in the U.S.A. contains detergent additives to clean and/or keep
clean intake systems.
■Recommendation of the use of cleaner burning gasoline
Cleaner burning gasoline, including reformul ated gasoline that contains oxygenates
such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in many areas.
Lexus recommends the use of cleaner burn ing gasoline and appropriately blended
reformulated gasoline. These types of ga soline provide excellent vehicle perfor-
mance, reduce vehicle emissions and improve air quality.
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure that it has an octane rating no lower than
87.
●Lexus does not recommend the use of gasoline containing methanol.
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhanc ing additive called MMT (Methylcyclo-
pentadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasoli ne that contains MMT. If fuel containing
MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the instrument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking for a short time while accelerating or
driving uphill. This is normal and there is no need for concern.
●Use only gasoline containing a maximum of
10% ethanol.
DO NOT use any flex-fuel or gasoline that
could contain more than 10% ethanol,
including from any pump labeled E15, E30,
E50, E85 (which are only some examples
of fuel containing mo re than 10% ethanol).DO NOT use gasoline con-
taining more than 10% ethanol.
(15% ethanol)
(50% ethanol)
(85% ethanol)

853Alphabetical index
GS450h_U (OM30D01U)
Seats............................................................ 148Adjustment ............................................. 148
Adjustment precautions .................. 149
Child seats/child restraint system installation..............................59
Cleaning ................................................ 620
Driving position memory ................ 150
Head restraints ..................................... 155
Power easy access system ............ 153
Properly sitting in the seat ................30
Seat heaters ......................................... 590
Seat position memory....................... 150
Seat ventilators ..................................... 591
Sensor Automatic headlight system .......... 216
Driver monitor sensor .................... 298
Humidity sensor ................................. 376
Inside rear view mirror ..................... 160
Intuitive parking assist ....................... 261
Lexus night view .................................. 315
LKA (Lane-Keeping Assist) .........259
Radar sensor .................245, 298, 310
Rain-sensing windshield wipers ................................................... 224
Service plug ................................................74
Service reminder indicators ............... 84 S-FLOW mode......................................374
Shift lever ................................................... 199
Hybrid transmission ...........................199
If the shift lever cannot be shifted from P ............ 764
Shift lever light ......................................... 571
Shift lock system .................................... 764
Side airbags ................................................39
Side marker lights .................................. 213 Light switch............................................. 213
Replacing light bulbs ....................... 697
Welcome light illumination control......................................................121
Side mirrors ............................................... 161 Adjusting and folding ......................... 161
BSM (Blind spot monitor) ............305
Linked mirror function when reversing.................................. 162
Mirror position memory ................. 150
Side turn signal lights .......................... 205 Replacing light bulbs ....................... 697
Turn signal lever .................................205
Smart access system with push-button start .........................121Antenna location.................................. 123
Entry functions ........................................121
Starting the hybrid system.............. 189
Warning message..............................727
Snow mode ............................................. 200
Snow tires ................................................ 323