2011 Lexus CT200h Hybrid system

502
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
CAUTION
When disconnecting the 12-volt battery
NOTICE
When recharging the 12-volt battery
Never recharge the 12-volt battery while the hybrid system is operating.
Also, be sure all accessories are turned off.
Do not disconnect the negative (-) termi-
nal on the body side as shown. The dis-
connected negative (-) terminal may
touch the positive (+) terminal, which
may cause a short and result in death or
serious injury.

526
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
27DRL7.5 ADaytime running light system
28DOOR NO.225 APower door lock system
29P/I 160 AIG2, EFI MAIN, BATT FAN
30EPS60 AElectric power steering system
31PCU10 AHybrid system
32IGCT NO.210 A
Hybrid system, P position control
system, power management sys-
tem
33IGCT NO.310 ACooling system
34DOME10 A
Luggage compartment light, over-
head module, interior lights, per-
sonal lights, vanity lights, footwell
lights
35ECU-B7.5 A
Smart entry & start system, gauges
and meters, outside rear view mir-
rors, air conditioning system, driv-
ing position memory system,
electric power steering system,
clock
36H-LP LH HI10 ALeft-hand headlight (high beam)
37H-LP RH HI10 ARight-hand headlight (high beam)
FuseAmpereCircuit

527
4-3. Do-it-yourself maintenance
4
Maintenance and care
CT200h_EE (OM76041E)
38EFI NO. 210 A
Multiport fuel injection system/
sequential multiport fuel injection
system, exhaust system, key off
pump module, electric cooling
fans
39M-HTR10 AOutside rear view mirror defoggers
40SPARE30 ASpare fuse
41SPARE10 ASpare fuse
42SPARE7.5 ASpare fuse
43EFI MAIN20 A
Multiport fuel injection system/
sequential multiport fuel injection
system, cooling system, EFI NO.2
44BATT FAN10 ABattery cooling fan
45IG220 A
Hybrid system, multiport fuel
injection system/sequential multi-
port fuel injection system, MET,
IGN, power management system
FuseAmpereCircuit

5When trouble arises
549
CT200h_EE (OM76041E)
5-1. Essential information
Emergency flashers .......... 550
If your vehicle needs to be
towed.............................. 551
If you think something is
wrong ............................. 5575-2. Steps to take in an
emergency
If a warning light turns on
or a warning buzzer
sounds ............................ 558
If a warning message is
displayed ........................ 565
If you have a flat tire
(vehicles with a spare
tire) ................................ 586
If you have a flat tire
(vehicles without a spare
tire) ................................ 600
If the hybrid system will not
start ................................ 614
If you lose your keys ....... 616
If the electronic key does
not operate properly....... 617
If the 12-volt battery is
discharged ...................... 620
If your vehicle overheats . 627
If the vehicle becomes
stuck............................... 632
If your vehicle has to be
stopped in an
emergency...................... 634

550
CT200h_EE (OM76041E)
5-1. Essential information
Emergency flashers
NOTICE
To prevent 12-volt battery discharge
Do not leave the emergency flashers on longer than necessary when the
hybrid system is not operating.
Use the emergency flashers if the vehicle malfunctions or is involved
in an accident.
Press the switch to flash all
the turn signal lights. To turn
them off, press the switch
once again.

5
551
5-1. Essential information
When trouble arises
CT200h_EE (OM76041E)
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your hybrid transmis-
sion. Contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional before towing.
The hybrid system is operating but the vehicle will not move.
The vehicle makes an abnormal sound.
If there is a malfunction in the P position control system, the smart
entry & start system or the immobilizer system, or if the 12-volt
battery is discharged, the vehicle cannot be towed with the front
wheels on the ground, as the front wheels may be locked. In this
case, transport the vehicle with both front wheels or all four wheels
lifted.
If towing is necessary, we recommend having your vehicle towed by
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional or a commercial towing service, using a lift-
type truck or flat bed truck.
Use a safety chain system for all towing, and abide by all state/provin-
cial and local laws.

556
5-1. Essential information
CT200h_EE (OM76041E)
CAUTION
Caution while towing
Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelets and the cables or chains. Always
be cautious of the surroundings and other vehicles while towing.
Do not turn the “POWER” switch off.
This may lead to an accident as the front wheels will be locked by the
parking lock.
If the hybrid system is off, the power assist for the brakes and steering will
not function, making steering and braking more difficult.
Installing towing eyelets to the vehicle
Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing. This
may lead to accidents that cause serious injury or even death.
NOTICE
To prevent damaging the vehicle
When raising the vehicle, ensure adequate ground clearance for towing at
the opposite end of the raised vehicle. Without adequate clearance, the vehi-
cle could be damaged while being towed.
To prevent causing serious damage to the hybrid transmission when towing
using a wheel-lift type truck
Never tow this vehicle from the front with the rear wheels on the ground.
To prevent body damage when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
To prevent causing serious damage to the hybrid transmission in emergency
towing
Never tow a vehicle from the rear with four wheels on the ground. This may
cause serious damage to the hybrid transmission.

5
557
5-1. Essential information
When trouble arises
CT200h_EE (OM76041E)
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional as soon
as possible.
Visible symptoms
Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is nor-
mal.)
Flat-looking tires or uneven tire wear
High coolant temperature warning light flashes or comes
on.
Audible symptoms
Changes in exhaust sound
Excessive tire squeal when cornering
Strange noises related to the suspension system
Pinging or other noises related to the hybrid system
Operational symptoms
Engine missing, stumbling or running roughly
Appreciable loss of power
Vehicle pulls heavily to one side when braking
Vehicle p lls hea il to one side hen dri ing on a le el