Stop and Start System does not Operate (Battery Condition) [10/2022 - ]: Description
WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
When the stop and start system does not operate, check whether the operation is prohibited because the battery conditions are not met.
HINT:
DATA LIST ITEMS
| Hood Courtesy Switch | Battery Current | Battery Fluid Temperature (Start) | Battery Fluid Temperature |
| Idling Stop Rate | Total Idling Stop Rate | Integrated Current | Status of Battery Charge Control |
| Minimum Voltage (Cranking) | Minimum Voltage (Starter Solenoid Engagement) | State of BBC | Stop&Start Operating Permission (Power Management) |
| Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement)) | Stop&Start Operating Permission (Minimum Voltage (Cranking)) | Stop&Start Operating Permission (Integrated Current) | Stop&Start Operating Prohibition (Jump Start) |
| Battery Type | Stop&Start Operating Prohibited by Battery Low Voltage | Stop&Start Permission Status (Low Capacity by Battery Degradation) | - |
NOTE:
If the Data List item Stop&Start Operating Permission (Power Management) is "NG" even after correcting a certain problem using the diagnostic troubleshooting procedures, the problem may be due to the battery charge amount being temporarily low or the battery may be deteriorated. However, there may be multiple overlapping conditions which are causing system operation to be prohibited, so make sure to always confirm all the diagnostic troubleshooting procedures.