Caution / Notice / Hint
WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during HV battery removal/installation are shown below.
NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED
| Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed | Link |
|---|---|---|---|
| Replacement of HV battery |
|
HV battery status information cannot be updated | Refer to UTILITY [11/2021 - ] |
WARNING:
- Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the repair information.
Refer to PRECAUTION [11/2021 - ]
- To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.
NOTE:
- To prevent the key from being locked in the vehicle, make sure to enter e-latch inspection mode and enable the manual release handle before disconnecting the cable from the negative (-) auxiliary battery terminal.
- If the HV battery has been struck or dropped, replace it.
- When connecting a connector to the HV battery, confirm that the connector is securely connected through the following:
- Push the connector until a click sound is heard.
- Visually check and confirm that the connector is securely connected by pulling on it.
- Make sure to insulate the high-voltage connectors and terminals of the HV battery with insulating tape after removing it.
If the HV battery stored without insulating the connectors and terminals, electric shock or fire may result.
- When performing repairs around the HV battery, such as using a tap, do not allow metal shavings to enter the HV battery.
- Do not touch any high voltage wire harnesses, connectors or parts with bare hands.
- Hold the areas shown in the illustration and lift the HV battery.
*a Guide Pin - Be careful not to deform the guide pins of the HV battery assembly during removal and installation.
- Do not allow foreign matter, such as grease or oil, to adhere to the bolts or nuts of the HV battery.
- Do not put your hands into the openings of the HV battery.
*a Opening - When removing/installing/moving the HV battery, make sure not to tilt it more than 80°.
- Do not climb on top of or stand on the HV battery.
- Do not allow any foreign matter or water to enter the HV battery.
- If any bolts, nuts or clips are dropped into the HV battery, make sure to remove them.
HINT:
When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.
LEARNING COMPLETES WHEN VEHICLE IS DRIVEN
| Effect/Inoperative Function when Necessary Procedure not Performed | Necessary Procedure | Link |
|---|---|---|
| Lighting System (EXT) | Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more. | Refer to INITIALIZATION [11/2021 - ] |
| Front Camera System | ||
| Adaptive High Beam System |
LEARNING COMPLETES WHEN VEHICLE IS OPERATED NORMALLY
| Effect/Inoperative Function when Necessary Procedure not Performed | Necessary Procedure | Link |
|---|---|---|
E-latch System
|
Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch. | Refer to INITIALIZATION [11/2021 - ] |
| Power Back Door System | Reset back door close position | Refer to INITIALIZATION [11/2021 - ] |
| Air Conditioning System | After the ignition switch is turned to ON, the servo motor standard position is recognized. | - |
COMPONENTS (REMOVAL)
| Callout - Procedure | Part Name Code | ||||
|---|---|---|---|---|---|
| 1 | PRECAUTION | - | See step 1 | - | - |
| 2 | READ VALUE USING GTS | - | - | - | - |
| 3 | SERVICE PLUG GRIP | G3834 | - | - | - |
| Callout - Procedure | Part Name Code | ||||
|---|---|---|---|---|---|
| 4 | REMOVE NO. 2 INVERTER PROTECTOR | G921F | - | - | - |
| 5 | DISCONNECT ENGINE ROOM MAIN WIRE | 82111 | See step 5 | - | - |
| 6 | REMOVE CONNECTOR COVER ASSEMBLY | - | See step 6 | - | - |
| 7 | CHECK TERMINAL VOLTAGE | - | See step 7 | - | - |
| 8 | INSTALL CONNECTOR COVER ASSEMBLY | - | See step 8 | - | - |
| 9 | CONNECT ENGINE ROOM MAIN WIRE | 82111 | See step 9 | - | - |
| 10 | INSTALL NO. 2 INVERTER PROTECTOR | G921F | - | - | - |
| Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf) | N*m (kgf*cm, ft.*lbf): Specified torque |
| Callout - Procedure | Part Name Code | ||||
|---|---|---|---|---|---|
| 11 | BATTERY COOLING BLOWER ASSEMBLY | G9230 | - | - | - |
| 12 | NO. 1 HV BATTERY COVER PANEL RH | G92N4A | See step 12 | - | - |
| 13 | FLOOR UNDER WIRE | 821H1 | See step 13 | - | - |
| 14 | DISCONNECT FLOOR WIRE | 82161 | See step 14 | - | - |
| 15 | HYBRID BATTERY HOSE ASSEMBLY | G9290A | - | - | - |
| 16 | NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY | 899A0A | See step 16 | - | - |
| 17 | DISCONNECT FLOOR WIRE | 82161 | See step 17 | - | - |
| 18 | NO. 4 HV BATTERY PROTECTOR | G92PF | See step 18 | - | - |
| 19 | DISCONNECT FLOOR WIRE | 82161 | See step 19 | - | - |
| 20 | HV BATTERY | G9510 | See step 20 | - | - |
| 21 | PERFORM RECOVERY INSPECTION | - | See step 21 | - | - |
| *1 | BATTERY COVER LOCK STRIKER | - | - |