2021 TESLA MODEL S battery

If Vehicle Has No Power
If Model S has no 12V power, perform the
following steps to open the hood or jump start the auxiliary 12V battery.
Jump Starting the 12V Battery
CAUTION: Model S cannot be used to jump start another vehicle. Doing so can result in damage.
NOTE: If jump starting Model S using another
vehicle, refer to that vehicle manufacturer

(VCBATT_a191)
Electrical system power reduced
Vehicle shutting down
The low voltage battery cannot provide the electrical support necessary to drive or continue driving. Your vehicle is shutting down to preserve energy for essential functions other than
driving.
Your vehicle cannot be driven or continue driving while this condition continues.
If this alert is present while you are driving, your vehicle needs to come to a stop immediately. It
is recommended that you:

(VCBATT_a402)
Electrical system backup power is unavailable
Vehicle will consume more energy while idle
The backup power source for the electrical system, the low voltage battery, is not available or
cannot provide the voltage required to support all vehicle features.
The primary source of electrical power, the high voltage battery system, will continue to support
vehicle functions, even when your vehicle is idle. For more information on the high voltage
battery, see
About the Battery on page 177.
You may notice that your vehicle consumes more energy than usual when you are not driving it, or that your vehicle displays a lower projected range than you would normally expect after
charging. This is normal vehicle behavior when this alert is present, and it will continue until the
backup power source is restored.
You may also notice that some nonessential features are not available. This is expected behavior
due to your vehicle preserving energy for essential functions.
It is recommended that you limit or avoid the use of any nonessential features. This can help
your vehicle maintain adequate electrical power for essential functions.
There is a chance that an issue affecting the primary power source could cause your vehicle to
shut down unexpectedly.
It is recommended that you schedule service at your earliest opportunity, so the backup power source for the electrical system can be restored.
(VCBATT_a478)
Low voltage battery service is required
Schedule service - Vehicle may not restart
The low voltage battery cannot provide the electrical support necessary to drive or continue driving.
If this alert is present while you are driving, your vehicle needs to come to a stop as soon as
possible. Pull over safely at your earliest opportunity.
It is possible your vehicle will shut down unexpectedly. It is also possible that your vehicle will
not restart after the current drive.
You may notice that some nonessential features are not available. This is expected behavior due
to your vehicle preserving energy for essential functions.
It is recommended that you eliminate or reduce your use of any nonessential features. This can
help your vehicle maintain adequate electrical power for essential functions other than driving,
until it can be serviced.
If this alert remains present, it is recommended that you schedule service immediately. Without
service, your vehicle may not drive, may shut down unexpectedly, or may not restart.
(VCBATT_a496)
Vehicle is preparing to shut down
PULL OVER SAFELY
The electrical system cannot provide adequate support to drive or continue driving. Your vehicle
is preparing to shut down to preserve energy for essential functions other than driving.
Troubleshooting Alerts
267Consumer Information

If the 12V battery is too low to turn on the vehicle or open the doors, follow the instructions in Jump Starting the 12V Battery on page .
For more information on the battery system, see Battery Information on page 177.
(VCFRONT_a192)
Electrical system is unable to support all features
Shutting down features to conserve energy
The electrical system cannot support all vehicle features. Your vehicle is shutting down all
nonessential features to preserve energy for essential functions.
Your vehicle cannot be driven or continue driving while this condition continues.
If this alert is present while you are driving, your vehicle needs to come to a stop as soon as
possible. It is recommended that you:

A
ABS (Anti-lock Braking System): 66
absolute speed limit: 126
access panel, removing: 199
accessories: 24
plugging into power socket: 24
Active Road Noise Reduction: 25
adaptive headlights: 58
adjacent lane speed: 119
aero covers: 190
air conditioning: 135
air filter: 140
air vents: 138
airbags: 38
alarm: 161
all-season tires: 192
Always Show Estimated Round Trip Energy: 146
anti-lock braking (ABS): 66
apps: 6
audio: 149, 152
playing files: 149, 152
settings: 149
volume control: 149
auto fold: 50
Auto High Beam: 57
Auto Lane Change: 95
auto tilt: 50
AUTO wipers: 65
automatic emergency braking: 123
automatic navigation: 142
Autopark: 109
autopilot: 119
blind spot collision warning: 119
side collision warning: 119
Autopilot: 84, 87, 93, 95, 109, 111, 122, 126
Auto Lane Change: 95
automatic emergency braking: 122
Autopark: 109
Autosteer: 93
collision avoidance assist: 122
forward collision warning: 122
overtake acceleration: 87
overview: 84
speed assist: 126
speed limit warning: 126
staying within speed limits: 126
Summon: 111
Traffic-Aware Cruise Control: 87
Autopilot components: 84
Autosteer: 93
B
backup camera: 76
battery (12V): 177, 210
complete discharge: 177
specifications: 210
Battery (high voltage): 177, 199, 210
care of: 177
coolant: 199
specifications: 210
temperature limits: 177
battery (key), replacing: 12
blind spot collision warning: 119
Bluetooth: 150, 154
devices, playing audio files from: 150
general information: 154
phone, pairing and using: 154
body repairs: 202
body touch up: 196
Boombox: 153
brakes: 66, 123, 199, 208
automatic in emergencies: 123
fluid level: 199
overview of: 66
specifications: 208
Bumper Clearance (Summon): 111
C
cabin air filter: 140
cabin camera: 25
cabin temperature control: 135
Calendar: 154, 157
California Proposition 65: 227
camera (rear view): 76
cameras (autopilot): 84
Camp Mode: 139
car cover: 197
Index

car cover: 197
cleaning: 194
dimensions: 206
lights: 56
overview: 3
polishing, touch up, & repair: 196
F
favorites (Media Player): 150
Favorites (navigation): 142
FCC certifications: 229
features, downloading new: 170
firmware (software) updates: 170
flashers, warning: 58
floor mats: 197
fluids: 187, 199
replacement intervals: 187
reservoirs, checking: 199
fog lights: 56
forward collision warning: 122
front passenger detection: 40
front trunk: 19
G
garage doors, opening: 166
gates, opening: 166
GAWR: 204
gears: 53
glovebox: 22
Glovebox PIN: 161
Gross Axle Weight Rating: 204
Gross Vehicle Weight Rating: 204
ground clearance: 206
GVWR: 204
H
hazard warning flashers: 58
head restraints: 27
head supports: 27
headlights: 56, 57, 58
adaptive: 58
after exit: 58
high beams: 57
heating: 135
height adjustments (suspension): 201
disabling (Jack mode): 201
high beam headlights: 57
high voltage: 175, 187, 210
Battery specifications: 210
components: 175
safety: 187
Home: 6
button: 6
screen: 6
Home location: 144
HomeLink: 111, 166
programming and using: 166
when using Summon: 111
hood: 19
horn: 49
hub caps: 190
I
I

key: 12, 229
FCC and IC certifications: 229
replacing battery: 12
key card: 10
keys: 9, 12
adding key cards and phone keys: 12
deleting key cards and phone keys: 12
displaying a list of: 12
overview: 9
L
label: 204
Tire and Loading Information: 204
vehicle certification: 204
lane assist: 119
lane change, automatic: 95
Lane Departure Avoidance: 119
LATCH child seats, installing: 35
liftgate: 17
adjust opening height: 17
opening: 17
lifting: 201
lights: 56, 58
adaptive headlights: 58
hazard warning: 58
headlights after exit: 58
turn signals: 58
load limits: 204
location tracking: 142
locking: 14
lumbar adjustment: 26
M
maintenance: 186, 187, 188, 194, 198, 199, 200
brake fluid, checking: 199
cleaning: 194
daily checks: 186
fluid replacement intervals: 187
monthly checks: 186
panel, removing: 199
replacing wiper blades: 198
service intervals: 186
tires: 188
washer fluid, topping up: 200
washer jets, cleaning: 198
map orientation: 142
map updates: 148
mats: 197
media: 149, 152
microphones: 25
mileage upon delivery: 227
mirrors: 50
mobile app: 172
mobile app access: 172
Mobile Connector: 176, 179
description: 176
using: 179
modifications: 202
motor specifications: 208
N
Navigate on Autopilot: 98
navigating: 142
NCC certifications: 229
Neutral gear: 55
NHTSA, contacting: 229
noise reduction microphones: 25
O
Obstacle-Aware Acceleration: 122
occupancy sensor: 40
occupant classification: 41
odometer: 73
Off-Peak Charging: 184
offset from speed limit: 126
Online Routing: 147
opening hood without power: 222
overhang dimensions: 206
overtake acceleration: 87
Owner Information, about: 224
P
Park Assist: 70
Park gear: 54
parking brake: 68
parking, using Autopark: 109
parking, using Summon: 111
parts replacement: 202
Index

passenger detection: 40
passenger front airbag: 40
pedestrian warning: 80
phone: 9, 154
authenticating as a key: 9
using: 154
phone app: 155
phone key: 9, 12
adding as a key: 12
removing as a key: 12
PIN: 45
PIN to Drive: 161
power cycling: 51
power socket: 24
power windows: 16
powering on and off: 51
Preconditioning: 184
Proposition 65: 227
public charging stations: 176
R
radio: 149, 152
Radio Frequency information: 229
range: 60, 67, 74
displayed on instrument panel: 60
driving tips to maximize: 74
regenerative braking: 67
range assurance: 75
Re-route: 147
reading light: 24
rear seats, folding and raising: 26
rear view camera: 76
rear window switches, disabling: 16
recent (Media Player): 150
Recents (navigation): 142
recording videos: 78, 163
regenerative braking: 67
relative speed limit: 126
release notes: 171
restarting the touchscreen: 51
Reverse gear: 55
RFID transponders: 202
roadside assistance: 218
rotating tires: 189
Round Trip Energy (navigating): 146
S
safety defects, reporting: 229
safety information: 31, 37, 43
airbags: 43
child seats: 37
seat belts: 31
Schedule: 184
schedule service: 172
scheduled charging: 184
scheduled departure: 184
using: 184
seat belts: 29, 30, 196
cleaning: 196
in a collision: 30
overview of: 29
pre-tensioners: 30
wearing when pregnant: 30
seat covers: 28
seat heaters: 135
seating capacity: 204
seating position: 42
seats: 26, 135
adjusting: 26
heaters: 135
security settings: 161
sensors: 84
Sentry Mode: 162
service data recording: 226
service intervals: 186
shifting gears: 53
Show Calendar Upon Entry: 154, 157
Side Clearance (Summon): 111
side collision warning: 119
slip start: 69
Smart Summon: 115
smartphone: 9
authenticating as a key: 9
Software Reinstall: 170
software update preferences: 170
software updates: 170
specifications: 206, 208, 210
12V battery: 210
Index