Tesla Model 3: Insulators - HV Battery (Install)
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 minimum rating of class 0 (1000V) must be worn
at all times a high voltage cable, busbar, or fitting is handled. Refer to Tech
Note TN-15-92-003, "High Voltage Awareness Care Points" for additional safety
information.
Install
Note: This procedure supplements removing the penthouse
cover for when HV insulators are missing. After completing this procedure,
continue to the procedure that required the penthouse cover to be removed.

- Install the squarish insulator caps onto the pyrotechnic battery
disconnect busbar bolt heads.
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- Install the round insulator caps onto the HV battery positive contactor
busbar bolt heads.
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- Install the round insulator caps onto the HV battery negative contactor
busbar bolt heads.
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- Raise the high voltage controller, install the fuse access insulator
onto the RH penthouse bus cover, fasten the clips that attach the insulator
to the cover, and lower the high voltage controller.
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- Install the special insulator onto the DC input assembly busbar bolt
heads.

- Install the AC inlet terminal covers over the positive and negative ring
terminal bolts, and fasten the clips that attach the AC inlet terminal
covers to the HV battery fast charge contactor cover.
- Continue to the procedure that required the penthouse cover to be
removed.
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Passthrough - DCDC - 12V- Remove
SPECIAL TOOLS
Skt, 1/4in Dr, 5-Lobe Torx Plus External (1059330-00-B)
Resistance meter, microohm, Hioki RM 3548 (1076927-00-A)
Remove
Remove the high voltage contr
SEE MORE:
How Speed Assist Works
Model 3 displays a speed limit on the
touchscreen and you can choose if and how
you are warned when you exceed the speed
limit. You can touch this speed limit sign to
automatically change the set speed to the
detected speed limit (including any offsets
that you have set
Braking Systems
Warning: Properly functioning braking
systems are critical to ensure safety. If
you experience a problem with the brake
pedal, brake caliper, or any component of
a Model 3 braking system, contact Tesla
immediately.
Model 3 has an anti-lock braking system (ABS)
that prevents th