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Caution: If the brakes are not functioning
properly, stop the vehicle as soon as safety permits and contact Tesla Service.
See Park on page 56 for information on
using the Park button to stop the vehicle
in case of emergency.Warning: Always maintain a safe driving
distance from the vehicle in front of you
and be cautious in hazardous driving
conditions. Do not rely on brake disc
wiping or hydraulic fade compensation to act as a substitute for adequate braking.
Regenerative Braking
Whenever Model 3 is moving and your foot is
off the accelerator, regenerative braking slows
down Model 3 and feeds any surplus energy back to the Battery.
By anticipating your stops and reducing or
removing pressure from the accelerator pedal
to slow down, you can take advantage of regenerative braking to increase driving range.
Of course, this is no substitute for regular braking when needed for safety.
Note: If regenerative braking is aggressively
slowing Model 3 (such as when your foot is
completely off the accelerator pedal at
highway speeds), the brake lights turn on to
alert others that you are slowing down.
Note: Installing winter tires with aggressive
compound and tread design may result in
temporarily-reduced regenerative braking
power. However, your vehicle is designed to continuously recalibrate itself, and after changing tires it will increasingly restore
regenerative braking power after some
moderate-torque straight-line accelerations.
For most drivers this occurs after a short
period of normal driving, but drivers who
normally accelerate lightly may need to use
slightly harder accelerations while the
recalibration is in progress.
Warning: In snowy or icy conditions
Model 3 may experience traction loss
during regenerative braking, particularly
when in the Standard setting and/or not
using winter tires. Tesla recommends
using the Low setting (see To Set the
Regenerative Braking Level on page 66)
in snowy or icy conditions to help maintain vehicle stability.The amount of energy fed back to the Battery
using regenerative braking can depend on the
current state of the Battery and the charge
level setting that you are using. For example,
regenerative braking may be limited if the Battery is already fully charged or if the
ambient temperature is too cold.
Note: If regenerative braking is limited, a
dashed line displays on the energy bar (see
Driving Status on page 63).
To Set the Regenerative Braking Level
You can use the touchscreen to change the
level of regenerative braking:
1. Touch Controls > Driving > Regenerative
Braking .
2. Choose from two levels:
Page 89 of 220
Release the accelerator pedal to allow Traffic-
Aware Cruise Control to maintain your cruising
speed.
When the cruising speed is
set, the speedometer icon on
the touchscreen turns blue
and displays the set cruising
speed.
Note: Moving the gear level fully down twice in
quick succession engages Autosteer
(assuming it has been enabled as described in Autosteer on page 93) and the set speed
changes to either your current driving speed,
or the current set speed (displayed in the
icon), whichever is greater.
Note: The minimum speed you can set is
18 mph (30 km/h) and the maximum is 90
mph (150 km/h). It is the driver
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Obstacle-Aware AccelerationObstacle-Aware Acceleration is designed toreduce the impact of a collision by reducing
motor torque if Model 3 detects an object in
its driving path. For example, Model 3, while
parked in front of a closed garage door with
the Drive gear engaged, detects that you have
pressed hard on the accelerator pedal.
Although Model 3 still accelerates and hits the
garage door, the reduced torque may result in
less damage.
Obstacle-Aware Acceleration is designed to operate only when all of these conditions are
simultaneously met:
Page 189 of 220

Subsystems
Transmission
TypeSingle speed fixed gearGearbox Ratio9:1
Steering
TypeRack and pinion with electronic power
steering, speed sensitiveNumber of turns lock to lock2.00Turning Circle (curb to curb)38.8 ft (11.8 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 systemCalipersFront: Four piston fixed
Rear: Integrated Electronic Parking Brake
Sliding
Rotor Diameter (ventilated)
Front (non-Performance): 12.6"/320 mm
Front (Performance): 13.98"/355 mm
Rear (non-Performance): 13.2"/335 mm Rear (Performance): 13.2”/335 mmFront Rotor thicknessNew: 0.98"/25 mm
Service limit: 0.91”/23 mmRear Rotor thicknessNew: 0.79"/20 mm
Service limit: 0.71”/18 mmNon-Performance Front Brake Pad Thickness
(excluding back plate)New: 0.393"/10 mm
Service limit: 0.110"/2.8 mmNon-Performance Rear Brake Pad Thickness
(excluding back plate)New: 0.354"/9 mm
Service limit: 0.078"/2 mmPerformance Front Brake Pad Thickness (excluding
back plate)New: 0.393"/10 mm
Service limit: 0.085"/2.15 mmPerformance Rear Brake Pad Thickness (excluding
back plate)New: 0.393"/10 mm
Service limit: 0.071"/1.8 mmParking brakeElectrically actuated parking brake
integrated into rear caliper
Subsystems
188Model 3 Owner