CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during auxiliary battery removal/installation are shown below.
| Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed | Link |
|---|---|---|---|
| Auxiliary battery terminal is disconnected/reconnected | Memorize steering angle neutral point | LKA /LDA system | |
| Pre-collision system | |||
| Parking assist monitor system | |||
| Steering sensor zero point calibration | Variable gear ratio steering system |
Note
After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) auxiliary battery terminal.
| System Name | See Procedure |
|---|---|
| Vehicle enrolled in lexus enform system or safety connect system | 6 minutes |
| Vehicle not enrolled in lexus enform system and safety connect system | 1 minute |
PROCEDURE
PRECAUTION
Note
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
When replacing the auxiliary battery, use a new auxiliary battery of the same dimensions with a capacity of 51 Ah or more at a 20-hour rate.
DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
REMOVE AUXILIARY BATTERY