2013 Lexus ES300h ECU

641
ES350 300h_OM_OM33A01U_(U)
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 features to subscribers. Safety Con-
nect is supported by Lexus’ de signated 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 service, you are agreeing to be bound by
the Telematics Subscription Ser vice Agreement and its Terms and
Conditions, as in effect and amended from time to time, a current copy
of which is available at Lexus.com. All use of the Safety Connect ser-
vice is subject to such then-app licable Terms and Conditions.
System components
1
2
3

ES350 300h_OM_OM33A01U_(U)
6616-2. Maintenance
6
Maintenance and care
Ve h i c l e i n t e r i o r
ItemsCheck points
Accelerator pedal
• The accelerator pedal should movesmoothly (without uneven pedal
effort or catching).
Automatic transmission “Park” mecha-
nism (gasoline vehicles)/Hybrid trans-
mission “Park” mechanism (hybrid
vehicles)• When parked on a slope and the shiftlever is in P, is the vehicle securely
stopped?
Brake pedal
• Does the brake pedal movesmoothly?
• Does the brake pedal have appropri- ate clearance from the floor? (→ P. 8 3 4 )
• Does the brake pedal have the cor- rect amount of free play? (→ P. 8 3 4 )
Brakes
• The vehicle should not pull to one
side when the brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel spongy.
• The brake pedal should not get too close to the floor when the brakes are
applied.

662
ES350 300h_OM_OM33A01U_(U)
6-2. Maintenance
Head restraints• Do the head restraints movesmoothly and lock securely?
Indicators/buzzers• Do the indicators and buzzers func-tion properly?
Lights• Do all the lights come on?
• Are the headlights aimed correctly?
Parking brake
• Does the parking brake pedal movesmoothly? brake pedal move
smoothly?
• When parked on a slope and the parking brake is on, is the vehicle
securely stopped?
Seat belts
• Do the seat belts operate smoothly?
• The seat belts should not be dam-aged.
Seats• Do the seat controls operate prop-erly?
Steering wheel
• Does the steering wheel rotatesmoothly?
• Does the steering wheel have the correct amount of free play?
• There should not be any strange sounds coming from the steering
wheel.
ItemsCheck points

ES350 300h_OM_OM33A01U_(U)
6756-3. Do-it-yourself maintenance
6
Maintenance and care
■Removing the engine compartment cover
■Installing the clipsPush up center portion
Insert
Press
Engine compartment cover
1
2
3
NOTICE
■Checking the engine compartment cover after installation
Make sure that the cover is securely installed in its original position.

686
ES350 300h_OM_OM33A01U_(U)
6-3. Do-it-yourself maintenance
■Adding distilled waterRemove the vent plug.
Add distilled water.
If the “UPPER LEVEL” line cannot
be seen, check the fluid level by
looking directly at the cell.
Put the vent plug back on and close it securely.
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flammable
and explosive. Therefore, observe the following before recharging:
●If recharging with the 12-volt battery installed on the vehicle, be sure to disconnect
the ground cable.
●Make sure the “START STOP ENGINE” switch on the charger is off when con-
necting and disconnecting the charger cables to the 12-volt battery.
1
Low O.K.2
3

690
ES350 300h_OM_OM33A01U_(U)
6-3. Do-it-yourself maintenance
12-volt battery (hybrid vehicles)
The 12-volt battery is located on the
right-hand side of luggage com-
partment.
Remove the 12-volt battery cover.Install the cover
Lift the tab to secure to the trunk
liner
Location
Removing the 12-volt battery cover
Installing the 12-volt battery cover
1
2

ES350 300h_OM_OM33A01U_(U)
7176-3. Do-it-yourself maintenance
6
Maintenance and care
22EFI NO.3
10*2Multiport fuel injection system, sequential
multiport fuel system, air intake system,
exhaust system
7. 5*1Multiport fuel injection system, sequential
multiport fuel system, air intake system
23INJ7. 5Multiport fuel injection system, sequential
multiport fuel system
24ECU-IG2 NO.37. 5
Multiport fuel injection system, sequential
multiport fuel system, electronic controlled
transmission, power management system,
steering lock system, cruise control system
25IGN15Starting system
26D/L-A M225Po w e r d o o r l o c k s y s t e m
27IG2-MAIN25INJ, IGN
28ALT-S*27. 5Charging system
DC/DC-S*17. 5Hybrid system
29MAYDAY5MAYDAY
30TURN&HAZ15Turn signal lights, emergency flashers
31STRG LOCK10Steering lock system
32AMP30Audio system
33H-LP LH-LO15Left-hand headlight
34H-LP RH-LO15Right-hand headlight
35EFI-MAIN NO.130EFI NO.2, EFI NO.3, fuel system
36SMART5Smart access system with push-button start,
occupant classification system
37ETCS10Multiport fuel injection system, sequential
multiport fuel system
38ABS NO.2*17. 5VSC, ABS
39EFI NO.17. 5
Multiport fuel injection system, sequential
multiport fuel system, electronic controlled
transmission
FuseAmpereCircuit

718
ES350 300h_OM_OM33A01U_(U)
6-3. Do-it-yourself maintenance
*1:Hybrid vehicles
*2: Gasoline vehicles
40
A/F*220Air intake system
EFI-MAIN
NO.2
*120Fuel system, air intake system, exhaust sys-
tem
41AM27. 5Power management system, smart access
system with push-button start
42PA N E L10
Switch illumination, audio system, multi-infor-
mation display, audio display, shift lever light,
glove box light, console box light, Remote
Touch, intuitive parking assist switch illumina-
tion
43DOME7. 5Clock, footwell lights, vanity lights, ornament
lights, personal lights, door courtesy lights
44ECU-B NO.110
Smart access system with push-button start,
main body ECU, steering sensor, gauges and
meters, gateway ECU, electric tilt and tele-
scopic steering column, power seats, over-
head module, outside mirror control ECU,
power trunk opener and closer ECU
45SPARE25Spare fuse
46SPARE30Spare fuse
FuseAmpereCircuit