TSB002523
Service Bulletin Details
Public Details for: TSB002523
Tsb: hybrid vehicles (hv) and battery electric vehicles (bev) are equipped with two types of batteries: ?Hybrid vehicle (hv) battery. ?Auxiliary (12v) battery. If a hybrid or battery electric vehicle is put into storage, the state-o
- 2024 -
Models from 2024
T-SB-0025-23 Rev1 May 26, 2023 Maintenance for HV/BEV and Auxiliary Batteries Service Category General Section Pre-Delivery Service Market USA Applicability YEAR(S) MODEL(S) 2024 Camry HV, Corolla Cross HV, Corolla HV, Grand Highlander HV, Land Cruiser, Mirai, Prius, Prius Prime, RAV4 HV, RAV4 Prime, Sequoia HV, Sienna HV, Tacoma HV, Tundra HV, Venza HV ADDITIONAL INFORMATION REVISION NOTICE February 16, 2024 Rev1: Applicability has been updated to include 2024 model year Land Cruiser and Tacoma Hybrid vehicles. Any previous printed versions of this bulletin should be discarded. Introduction Hybrid vehicles (HV) and battery electric vehicles (BEV) are equipped with two types of batteries: Hybrid vehicle (HV) battery. Auxiliary (12V) battery. If a hybrid or battery electric 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. As a matter of policy, Toyota does not provide battery warranty coverage for discharged and/or failed batteries due to lack of maintenance. It is the dealer’s responsibility to maintain the specified SOC of the vehicle’s battery while in stock and ensure proper SOC at delivery. Perform the following maintenance service for the HV battery and auxiliary battery. © 2024 Toyota Motor Sales, USA Page 1 of 6 T-SB-0025-23 Rev1 May 26, 2023 Page 2 of 6 Maintenance for HV/BEV and Auxiliary Batteries Introduction (continued) NOTE BEFORE disconnecting the auxiliary battery, confirm the shift lever is in the “P” position. The shift lever CANNOT be shifted from the “P” position with the auxiliary battery disconnected. Do NOT apply the parking brake. Ensure vehicles with electronic parking brakes do NOT engage and the Auto function has been DISABLED (refer to the vehicle’s Owner’s Manual for details). If the negative (–) terminal of the auxiliary battery is reconnected, even if the Power button is in the Start mode, the hybrid system may NOT start. In this case, push the Power button and select the Start mode 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. Maintenance Items CONDITION* MAINTENANCE OPERATION Fully charge the auxiliary battery (deliver the vehicle to the customer AFTER it is fully charged to 12.6V or more). Before Delivery To Store for 30 Days or More (Except Mirai) Disconnect the negative (–) terminal of the auxiliary battery in the luggage compartment to prevent the SOC of the auxiliary battery from decreasing during storage due to parasitic current. Periodical Battery Charging: Upon Arrival at the Dealership and Then Every 2 Months 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 bulletin. Warranty Information OP CODE DESCRIPTION TIME OFP T1 T2 N/A Not Applicable to Warranty – – – – © 2024 Toyota Motor Sales, USA T-SB-0025-23 Rev1 May 26, 2023 Page 3 of 6 Maintenance for HV/BEV and Auxiliary Batteries Required Tools & Equipment SPECIAL SERVICE TOOLS (SST) PART NUMBER QTY DCA-8000 Battery Diagnostic Tool* DCA-8000P T 1 DSS-5000 Battery Diagnostic Tool DSS-5000P T 1 *Essential SST. NOTE The DCA-8000 battery diagnostic tool (P/N DCA-8000P T) supersedes the GR8 battery diagnostic station (P/N 00002-MCGR8). Additional SSTs may be ordered by calling 1-800-933-8335. Before Delivery 1. BEFORE charging the auxiliary battery, turn OFF ALL lights, accessories, and the hybrid system. 2. Check the battery SOC. If the battery voltage is LESS THAN 12.6V, continue to step 3. If the battery voltage is 12.6V or MORE, replace the positive (+) terminal cover, install the battery cover (if applicable), and close the luggage compartment/hood. NOTE If measuring the voltage with the negative (–) terminal connected, turn OFF the Power button and turn ON the high beams for 20 – 30 seconds. This will remove the surface charge from the battery. If the engine has been running before measuring the voltage, wait 20 minutes or more after the engine stops. This removes the surface charge. For details on how to use the battery diagnostic station, refer to the DSS-5000 Instruction Manual and DCA-8000 Instruction Manual located at TIS – Diagnostics – Tools & Equipment – Battery Diagnostics. © 2024 Toyota Motor Sales, USA T-SB-0025-23 Rev1 May 26, 2023 Page 4 of 6 Maintenance for HV/BEV and Auxiliary Batteries Before Delivery (continued) 3. Test the auxiliary battery using the DSS-5000 battery diagnostic tool In Vehicle Test mode or DCA-8000 battery diagnostic tool Advanced Battery Test mode. Figure 1. DCA-8000 Battery Diagnostic Tool If charging is required, the DCA-8000 battery diagnostic tool will automatically start to charge. A. Connect the red charger clamp to the positive (+) terminal and the black charger clamp to the negative (–) terminal. B. Plug the charger into a grounded 110V outlet and press the power button. C. Once the DCA-8000 battery diagnostic tool is properly turned ON, perform an Advanced Battery Test. The DCA-8000 battery diagnostic tool will indicate results when complete. If the battery tests bad “Replace Battery,” replace the auxiliary battery. CAUTION Charge in a well-ventilated area. Do NOT allow sparks OR fire near the auxiliary battery. NOTE 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). © 2024 Toyota Motor Sales, USA T-SB-0025-23 Rev1 May 26, 2023 Page 5 of 6 Maintenance for HV/BEV and Auxiliary Batteries To Store for 30 Days or More-Disconnect the Negative (–) Terminal (Except Mirai) 1. Turn OFF ALL lights, accessories, and the hybrid system. 2. Disconnect the negative (–) terminal. Figure 2. NOTE When it is necessary to move the vehicle, reconnect the negative (–) terminal. 1 c 3. When removing the vehicle from storage, connect the negative (–) terminal. Please refer to applicable Repair Manual for torque specifications. NOTE AFTER recharging the auxiliary battery, the hybrid system may not start. Follow the procedure below to initialize the system. 1 Negative (–) Terminal 1. Put the shift lever in the “P” position. 2. Open and close ANY of the doors. 3. Restart the hybrid system. Periodical Battery Charging-Cycle Vehicle to Ready ON (Not Applicable to BEV Models) NOTE When the remaining capacity of the HV battery is low, the gasoline engine automatically starts and the HV battery is charged. The 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. © 2024 Toyota Motor Sales, USA T-SB-0025-23 Rev1 May 26, 2023 Page 6 of 6 Maintenance for HV/BEV and Auxiliary Batteries Periodical Battery Charging-Cycle Vehicle to Ready ON (Not Applicable to BEV Models) (continued) 3. With the brake pedal depressed, push the Power button and check that the Ready light in the meter illuminates when the hybrid system starts (the Ready light is ON). Figure 3. 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 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. © 2024 Toyota Motor Sales, USA