L-SB-0017-12 Service Bulletin/Repair Instructions

L-SB-0017-12
Rev1
©• FXI IS
March 21, 2012
Technical Service Information Bulletin
Maintenance for HV & Auxiliary Batteries

Service

Category
General

Lexus Supports
Section
Pre-Delivery Service
Market
USA
~
A SE Certification. .
Applicability

YEAR(S)
MODEL(S)
2014
CT200H , ES300H ,

GS450H, LS600H ,

RX450H
2013
CT200H, GS450H,

RX450H
ADDITIONAL INFORMATION
REVISION NOTICE
July 26, 2013 Rev1:

• Applicability has been updated to include applicable 2014 model year vehicles; 2013 LS 600h

has been removed (separate bulletin).

Any previous printed versions of this bulletin should be discarded.
Introduction
Hybrid vehicles are equipped with 2 types of batteries:

• Hybrid Vehicle (HV) battery

• 12-volt auxiliary battery

If the vehicle is put into storage, the state of charge (SOC) of its HV battery and auxiliary battery

will gradually decrease. To prevent the auxiliary battery from becoming discharged during storage,

proper maintenance is necessary.

Please perform the following maintenance service for the HV battery and 12-volt auxiliary battery.
© 2013 Lexus, a division of Toyota Motor Sales, USA
Page 1 of 6
L-SB-0017-12
Rev1
Page 2 of 6
March 21, 2012
Maintenance for HV & Auxiliary Batteries
Introduction (Continued)

NOTE

• Before disconnecting the auxiliary battery, confirm the shift lever is in the "P" position and

apply the parking brake completely. The shift lever cannot be shifted from the "P" position

with the 12-volt auxiliary battery disconnected.

• If the negative (-) terminal of the auxiliary battery is reconnected, even if the power switch

is selected to the "START" mode, the hybrid system may NOT start. In this case, push the

POWER switch to select "START" again to start the hybrid system (the "READY" light is ON).

If the hybrid system still does NOT start (the "READY" light is OFF), refer to the Repair Manual.

• If vehicle is equipped with VGRS, the system must be initialized after the auxiliary battery

has been reconnected. Please refer to the applicable vehicle specific Service Bulletin for

instructions.
Maintenance Items

CONDITION*
MAINTENANCE OPERATION

Fully charge the 12-volt auxiliary battery. Fast charge is NOT

recommended on the 12-volt battery in order to prevent battery

damage. (Deliver the vehicle to the customer after it is fully

charged to 12.6 V).
Before Delivery
To Store for 30 Days or More
Just After Unloading & Every 2 Months
Disconnect the negative (-)terminal of the 12-volt auxiliary

battery to prevent the SOC of the auxiliary battery from

decreasing during storage due to parasitic current.

Keep the Hybrid System ON for 30 minutes with the transmission

in the "P" position (in order to charge the HV battery and the

auxiliary battery).
•The condition also corresponds with the section titles within this Service Bulletin.
Warranty Information

OP CODE
DESCRIPTION
TIME
OFP
T1
T2
N/A
Not Applicable to Warranty
-
-
-
-
Required Tools and Equipment

SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
GR8 Battery Diagnostic Station**
00002-MCGRB
1
•• Essential SST.
NOTE

Additional SSTs may be ordered by calling 1-800-933-8335.
© 2013 Lexus, a division of Toyota Motor Sales, USA
..

L-SB-0017-12
Rev1
March 21, 2012
Page 3
o~
6
Maintenance for HV & Auxiliary Batteries
Before Delivery

Fully charge the 12-volt auxiliary battery:
1. Before charging the auxiliary battery, turn OFF all lights and accessories.

2. Locate the 12-volt auxiliary battery.

3. Remove the positive(+) terminal cover.
Figure 1.
I I

1
Positive (+) Terminal Cover
4. Check the battery SOC.

• If the battery voltage is LESS THAN 12.6 V, then continue to step 5.

• If the battery voltage is 12.6 V or MORE, replace the positive (+) terminal, close the battery

cover, install the luggage compartment floor mat, and close the trunk.

CAUTION

If measuring the voltage with the negative (-) terminal connected, verify IG/OFF, and turn

headlights on for 60 seconds or more. This removes the surface charge.
© 2013 Lexus, a division ofToyota Motor Sales, USA
L-SB-0017-12
Rev1
March 21, 2012
Page 4 of 6
Maintenance for HV & Auxiliary Batteries
Before Delivery

Fully charge the 12-volt auxiliary battery: (Continued)
5. Test the 12-volt auxiliary battery using the

GR8 Battery Diagnostic Station (SST P/N

00002-MCGRB). If charging is required, the GR8

will automatically start to charge.
Figure 2. GRB Battery Diagnostic Station
A. Connect the red charger clamp to the

positive (+) battery terminal and the black

charger clamp to the negative (-) battery

terminal.

B. Plug the charger into a grounded 110-volt

outlet and flip the power switch to the "ON"

position.

C. Once the charger is properly turned ON,

perform a diagnostic charge by "MODEL:'

(select the appropriate vehicle model).

The GR8 Battery Diagnostic Station

will indicate result when complete.

If the battery tests bad ("Replace Battery"),

replace the auxiliary battery.

NOTE

• If the vehicle model is not listed in the model list, charge by battery stock code. To charge

by stock code, refer to the Lexus Battery Stock Number Chart located on the Technical

Information System (TIS), Diagnostics - Tools & Equipment - Battery Diagnostics.

• If the auxiliary battery was stored at 32°F (0°C) or below, charge the auxiliary battery in

a room above 32° F (0°C).
CAUTION

• Charge in a well-ventilated area.

• Do NOT allow sparks or fire near the auxiliary battery.
6. If the GR8 Battery Diagnostic Station is NOT available, you may charge the 12-volt battery by

turning the vehicle to "READY" ON .

• Run time will vary depending on the state of charge .
•
• If this method is used, you MUST confirm that the battery is charged to 12.8 volts using

a DVOM.
© 2013 Lexus, a division of Toyota Motor Sales, USA
L-SB-0017 -12
Rev1
March 21, 2012
Page 5 of 6
Maintenance for HV & Auxiliary Batteries
To Store for 30 Days or More

Disconnect the negative (-) terminal:
1. Turn OFF all lights and accessories.

2. Disconnect the negative(-) terminal.
Figure 3.
NOTE

When it is necessary to move the vehicle,

reconnect the negative(-) terminal.
I I

1
Negative (-) Terminal Cover
Every Two Months

Cycle vehicle to "READY" ON:

NOTE

• When the remaining capacity of the HV battery is low, the gasoline engine automatically starts

and the HV battery is charged. The 12-volt auxiliary battery is also charged by the HV battery

regardless of the gasoline engine operation.

• Be sure to reconnect the negative (-) terminal of the auxiliary battery before performing this

procedure.
1. Park the vehicle in open air or connect the exhaust extraction hose to the exhaust pipe.

2. Apply the parking brake.
© 2013 Lexus, a division of Toyota Motor Sales, USA
L-SB-0017-12
Rev1
Page 6 of 6
March 21, 2012
Maintenance for HV & Auxiliary Batteries
Every Two Months

Cycle vehicle to "READY" ON: {Continued)
3. With the brake pedal depressed, push the

POWER switch and check that the "READY" light

in the meter illuminates when the hybrid system

starts (the "READY" light is ON).
Figure 4.

~-------------~
"\.~!J,1,
-(READY)~,,,,,,
~
~
4. Turn OFF all lights and accessories.

5. Check that the shift lever is in the "P" position.

6. Keep the "READY" light on and charge the HV

battery for 30 minutes.

NOTE
Figure 5.
IEnergy Monitor
• If the amount of charging energy is small,

the display may NOT indicate the energy

flow.

• Ensure there is a sufficient amount of fuel

for the vehicle to run for 30 minutes.

Consumption
© 2013 Lexus, a division of Toyota Motor Sales, USA
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