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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.
What to do:
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 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_a402
Electrical system backup power is unavailable
Vehicle will consume more energy while idle
What this alert means:
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 High Voltage Battery
on page 178.
You may notice that some nonessential features are not available. This is expected behavior due to your vehicle
preserving energy for essential functions.
You may also 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.
There is a chance that an issue affecting the primary power source could cause your vehicle to shut down
unexpectedly.
What to do:
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.
It is recommended that you schedule service at your earliest opportunity, so the backup power source for the
electrical system can be restored.
VCBATT_a496
Vehicle is preparing to shut down
PULL OVER SAFELY
What this alert means:
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.
Your vehicle cannot be driven or continue driving while this condition continues.
What to do:
Troubleshooting Alerts
275Troubleshooting
Page 279 of 296
This alert indicates that one or more of the tires on your vehicle is extremely low or flat.
The tire pressure monitoring system (TPMS) has detected that the air pressure in one or more of your tires is
significantly lower than the recommended cold tire pressure.
What to do:
You should pull over carefully as soon as possible. In a safe location, check for a flat tire.
You can request Tesla roadside assistance options (mobile tire, loaner wheel, tow) if required. See Contacting Tesla
Roadside Assistance on page 220 for more information.
In a non-emergency situation, it is recommended that you visit a local tire shop for assistance or schedule service
using your Tesla Mobile App.
See Maintaining Tire Pressures on page 190 for detailed information on where to find the recommended cold
pressure (RCP) for your vehicle
Page 293 of 296

R
radio: 170, 173
Radio Frequency compliance: 284
range: 71, 77, 186
displayed on instrument panel: 71
driving tips to maximize: 186
regenerative braking: 77
range assurance: 186
re-naming your vehicle: 12
Re-route: 168
reading light, rear: 32
rear view camera: 85
rear window switches, disabling: 24
recent (Media Player): 171
Recents (navigation): 164
recording: 152, 153
regenerative braking: 77
relative speed limit: 134
release notes: 161
restarting the touchscreen: 63
Reverse: 66
RFID transponders: 203
ride height, air suspension: 146
roadside assistance: 221
rotating tires: 191
Round Trip Energy (navigating): 168
run out of range: 225, 226
S
safety defects, reporting: 284
safety information: 42, 49, 55
airbags: 55
child seats: 49
seat belts: 42
satellite radio: 171
Schedule: 185
schedule service: 162
scheduled charging: 185
scheduled departure: 185
using: 185
seat belts: 40, 41, 198
cleaning: 198
in a collision: 41
overview of: 40
pre-tensioners: 41
wearing when pregnant: 41
seat heaters: 136
seating capacity: 206
seating position, driving: 35
seats: 136
heaters: 136
seats, front and rear: 35
second row seats: 37
security settings: 150
self-leveling: 146
sensors: 98
Sentry Mode: 153
service data recording: 281
service intervals: 188
Settings, erasing: 12
shifting: 65
shortcuts: 9, 11
adding to My Apps: 11
restarting the touchscreen: 9
Show Calendar Upon Entry: 143, 145
side camera(s): 85
Side Clearance (Summon): 122
side collision warning: 128
SiriusXM: 171
slip start: 79
Smart Summon: 125
smartphone: 13
authenticating as a key: 13
Software Reinstall: 160
software reset: 12
software update preferences: 160
software updates: 160
specifications: 211, 213
brakes: 211
High Voltage Battery: 213
low voltage battery: 213
motor: 211
steering: 211
subsystems: 211
suspension: 213
tires: 213
transmission: 211
wheels: 213
specifications (vehicle interior): 208
specifications and dimensions: 208
specifications, exterior: 208
speed assist: 134
speed limit warning: 134
stability control: 79
standby: 153
starting: 63
steering specifications: 211
steering, automatic: 105
summer tires: 194
Index