2021 Tesla Model 3 Subsystems
Motor Type(s)
Rear motor: AC permanent magnet synchronous motor, liquid-cooled, with variable frequency drive.
Front motor (AWD vehicles): AC induction motor, liquid-cooled, with variable frequency drive.
Transmission
| Type | Single speed fixed gear |
| Gearbox Ratio | 9:1 |
Steering
| Steering | Specifications |
|---|---|
| Type | Rack and pinion with electronic power steering, speed sensitive |
| Number of turns lock to lock | 2.00 |
| Turning Circle (curb to curb) | 38 ft (11.6 m) |
Brakes
| Type | 4-wheel anti-lock braking system (ABS) with Electronic Brake Force Distribution, Integrated Advanced Stability Control and Electronic Accelerator pedal actuated regenerative braking system |
| Calipers |
Front: Four piston fixed |
| Rotor Diameter (ventilated) |
Front (non-Performance): 12.6″/320 mm |
| Front Rotor thickness |
New: 0.98″/25 mm |
| Rear Rotor thickness |
New: 0.79″/20 mm |
| Lateral runout |
0.050 mm |
| Chordal runout |
0.040 mm |
| Disk thickness variation (DTV) |
0.010 mm |
| Non-Performance Front Brake Pad Thickness (excluding back plate) |
New: 0.393″/10 mm |
| Non-Performance Rear Brake Pad Thickness (excluding back plate) |
New: 0.354″/9 mm |
| Performance Front Brake Pad Thickness (excluding back plate) |
New: 0.393″/10 mm |
| Performance Rear Brake Pad Thickness (excluding back plate) |
New: 0.393″/10 mm |
| Parking brake | Electrically actuated parking brake integrated into rear caliper |
Suspension
| Suspension | Specifications |
|---|---|
| Front | Independent, double wishbone, coil spring/telescopic damper, sway bar |
| Rear | Independent, multi-link, coil spring/telescopic damper |
Battery – Low Voltage
| Battery – Low Voltage | Specifications |
|---|---|
| Rating | 33 amp hour or higher |
| Voltage and Polarity | Low voltage negative (-) ground |
Battery – High Voltage
For LI-ION Battery:
| Type | Li-ion |
| Nominal Voltage | 360V DC |
| Temperature Range | Do not expose Model 3 to ambient temperatures above 140° F (60° C) or below -22° F (-30° C) for more than 24 hours at a time. |
For LFP Battery:
| Type | Lithium iron phosphate (LFP) |
| Nominal Voltage | 345V DC |
| Temperature Range | Do not expose Model 3 to ambient temperatures above 140° F (60° C) or below -22° F (-30° C) for more than 24 hours at a time. |