Tesla Model S: HV Battery Charge/Discharge - 4th Generation Tool (Out of Vehicle)
Tesla Model S (2012-2026) Service Manual / Battery System / HV Battery Charge/Discharge - 4th Generation Tool (Out of Vehicle)
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Setup
Warning: Only technicians who have been trained in High
Voltage Awareness are permitted to perform this procedure. Proper
personal protective equipment (PPE) and insulating HV gloves with a
Starting/Discharging the System
Starting the System
Press the emergency stop button to disable HV systems.
Pull out the display/keyboard/trackpad tray.
Press the red power button to turn on the on-board PC.
Follo
Charging the Battery
Select Manual Mode from the Charge/Discharge Mode menu.
Type the desired SOC in the Target SOC% field, or drag the
Target SO
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Indicator Lights
Indicator lights display along the top of the instrument
panel to show status and alert you of specific vehicle
conditions.
A brake system fault is
detected or the
brake fluid level is low. Contact Tesla
immediately.
A brake booster fault has been
detected.
An ABS (Anti-lock Braking
Syste
PIN to Drive
To increase security, you can prevent Model S from
being driven until a 4-digit PIN (Personal Identification
Number) is entered. To enable this setting, touch
Controls > Safety > PIN to Drive and follow the on-
screen prompts to create a driving PIN.
When enabled, in addition to entering t
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