2023 TESLA MODEL Y wiring

The towing package includes a 2" x 2" (5 cm x 5 cm)
hitch receiver that can support an accessory carrier (for bicycles, skis, snowboards, etc.) or tow a trailer.
Installing and Using a Carrier
When using the tow package to carry accessories, the 2"
x 2" (5 cm x 5 cm) square hitch receiver is designed to
support vertical loads of up to
160 lbs (72 kg). Ball
mounts that are compatible with the square receiver
must be purchased separately.
To install and use an accessory carrier, you must first
attach the ball mount to the hitch receiver (see
Attaching and Removing the Ball Mount on page 83).
Then, follow the instructions provided by your accessory
carrier. Observe all regulations and legal requirements in your state or region that apply to carrying accessories.
The Model Y towing package includes the wiring
necessary for using an accessory carrier equipped with
lights (see
Electrical Connections on page 83). The
package also includes Trailer Mode software compatibility (see
Trailer Mode on page 81).
NOTE: Go to http://www.tesla.com to purchase
accessories for your vehicle. Although third-party products are available, Tesla recommends and supports
only Tesla-approved products (see
Parts and
Accessories on page 198). The accessory products
available for your vehicle may vary based on market
region. Before attempting to install a non Tesla-
approved carrier, review the product information to ensure compatibility.
NOTE: When not in use, the ball mount should be
removed and stored in a dry location to prevent dust and corrosion. Keep the dust cover over the hitch housing to prevent dirt and debris from entering (see
Attaching and Removing the Ball Mount on page 83).
NOTE: Tesla assumes no responsibility for damage or
injuries resulting from installing and using an accessory carrier, for any omissions in the instructions
accompanying an accessory carrier, or for your failure to follow the instructions. Damage caused by using an accessory carrier is not covered by the warranty.
Carrying Accessories
The hitch receiver is designed to support vertical loads
up to
160 lbs (72 kg). When carrying bicycles, skis, or
other items on the
Model Y hitch, always check to
ensure that the maximum weight is not exceeded. When calculating weight, remember to include the weight of
the accessory carrier.
For example, assuming the carrier
weighs 40 lbs (18 kg), the weight threshold is sufficient
for carrying two bicycles weighing approximately 60 lbs
(27 kg) each, or four items weighing approximately 30
lbs (14 kg) each.
NOTE: Consult the product details of your accessory
carrier for more information, such as additional weight or load limits. Damage caused by non Tesla-approved
accessories is not covered by the warranty.CAUTION: Exceeding the maximum weight the
Model Y hitch is designed to support (as
previously described) can cause significant

damage.
CAUTION: Do not attempt to install an accessory
carrier on Model Y that is not equipped with the
tow package. Doing so can cause significant
damage.
Trailer Towing
The maximum trailer weight (including all cargo and
additional equipment), and the trailer tongue weight
depend on the number of occupants in your vehicle and the tires being used. The maximum towing capacity and
trailer tongue weight must never exceed the following:
Wheel/Rim Size# of
PassengersMaximum
Towing
CapacityMaximum
Tongue
Weight19", 20"
and 21"up to 33,500 lbs
(1,588 kg)350 lbs (159
kg)19" and
21"4 - 53,500 lbs
(1,588 kg)350 lbs (159
kg)20"4 - 52,300 lbs
(1,043 kg)**230 lbs (104
kg)**19"6 - 7*2000 lbs
(907 kg)**200 lbs (91
kg)**20"6 - 7*Towing not
permitted-21"6 - 7*1200 lbs
(544 kg)**120 lbs (54
kg)**
*Applicable only to vehicles with seven seating
positions.
** You must operate within the speed limitations of your trailer and tires, and only drive at speeds appropriate for
the load you are towing, the weather, road and
traffic
conditions, and your level of towing experience. Always
obey posted speed limits and local regulations regarding
speed.
NOTE: In Canada, towing is limited to 55 mph (89 km/h).
For trailers with a combined loading of more than 1650
lbs (750 kg), Tesla recommends using a separate braking
system with an independent controller (see
Trailer
Brakes on page 81). Carefully follow the instructions
provided by the trailer brake manufacturer to ensure that trailer brakes are properly installed, adjusted, and
maintained.
Towing and Accessories
79Driving

4. Low Voltage Power (if equipped)5.
Ground
6.
Left Turn Signal and Brake Light
7.
Tail Lamps
Loss of trailer lights when towing may be the result of a
fault in the trailer wiring or excessive power
consumption by the lights connected to the trailer output(s). When this occurs, a red Trailer Mode icon
appears on the touchscreen. Fix any issues with the wiring and/or reduce the number of lights connected to the trailer output(s), then toggle Trailer Mode
off and on
again.
NOTE: Vehicles with a lead-acid low voltage battery
have auxiliary power. Vehicles with low voltage lithium-
ion batteries do not have auxiliary power at this time.
You can determine which battery your vehicle is
equipped with by touching
Controls > Software >
Additional Vehicle Information.
CAUTION: Always ensure that the trailer electrical
cable does not contact or drag on the ground and
there is enough slack in the cable to allow for
turns.
WARNING: Use only the electrical connections
designed by Tesla. Do not attempt to directly
splice or attempt to connect a trailer

The wiring between the wall power and the Wall Connector has been incorrectly installed. Consult your electrician.
For more information, see the installation guide for your Wall Connector.
CC_a010
Unable to charge - Wall Connector issue
Wall Connector needs service
What this alert means:
Wall Connector hardware issue. Possible issues include:
1.
Contactor not working
2.
Self-test of internal ground fault monitoring circuit failed
3.
Thermal sensor disconnected
4.
Other hardware component issues
What to do:
An internal issue was detected by the Wall Connector.
1.
Try charging again by disconnecting the Wall Connector from the vehicle and reconnecting.
2.
If the issue persists, turn OFF the circuit breaker for the Wall Connector, wait 10 seconds, and turn the circuit
breaker ON again. Then try reconnecting the Wall Connector to the vehicle.
3.
If the issue persists, have an electrician make sure all wires are properly connected and torqued according to the
instructions in the Wall Connector Installation Manual.
4.
Once your electrician has completed all work and restored power to the Wall Connector, try charging again by reconnecting the Wall Connector to the vehicle.
5.
If the issue persists, the Wall Connector requires service.
For more information, see the installation guide for your Wall Connector.
CC_a011
Unable to charge - Wall Connector too hot
Let Wall Connector cool and try again
What this alert means:
Over temperature protection (latchoff).
What to do:
Make sure the Wall Connector is not covered by anything and that there is no heat source nearby. If the problem
persists in normal ambient temperatures
(under 100

This is not typically an issue with your vehicle or your Wall Connector, but rather an issue with the building wiring. This may be caused by a loose building wiring connection to the Wall Connector and can be
fixed quickly by an
electrician.
To regain normal charge operation, try the following steps.
If the Wall Connector is plugged into a wall outlet, make sure:

CC_a030
Unable to charge - Primary / paired unit mismatch
Wall Connector current ratings must match
What this alert means:
Load sharing (circuit breaker sharing) network: The paired Wall Connectors have different maximum current
capabilities.
What to do:
Only Wall Connectors with the same maximum current capabilities can be paired in a load sharing (circuit breaker
sharing) network. Have your electrician inspect the type labels on the Wall Connectors and make sure the current
capabilities match. It is further recommended that your electrician only pair Wall Connectors with the same part
number, as an easy way to make sure paired units are compatible.
For more information, see the installation guide for your Wall Connector.
CC_a041
Charge rate reduced - Wall connection hot
Outlet or Wall Connector wiring must be checked
What this alert means:
High temperature detected by Wall Connector alerts indicate the building connection to the Wall Connector is
getting too warm, so charging has been slowed to protect the wiring and Wall Connector.
This is not typically an issue with your vehicle or your Wall Connector, but rather an issue with the building wiring.
This may be caused by a loose building wiring connection to the Wall Connector and can be fixed quickly by an
electrician.
What to do:
Contact an electrician to inspect the building wiring connection to the Wall Connector. They should make sure that
all wires are properly connected and torqued according to the installation guide for the Wall Connector.
For more information, see the installation guide for your Wall Connector.
CC_a043
Wall Connector configuration must be completed
Refer to Installation Guide to enable charging
What this alert means:
Wall Connector configuration is incomplete.
What to do:
The Wall Connector needs to be commissioned to appropriately configure the circuit breaker size and protective
earth connection type.
For more information, refer to Commissioning Procedure in the Wall Connector Installation Manual. If the issue persists, contact an electrician to inspect the building wiring connection to the Wall Connector. They should make
sure the power output and grounding connections are properly
configured according to the installation guide for the
Wall Connector.
For more information, see the installation guide for your Wall Connector.
Troubleshooting Alerts
245Troubleshooting

If the alert remains present, limited AC charging should still be available.
For more information on charging, see Charging Instructions on page 169.
CP_a101
Charge rate reduced - Wall connection hot
Outlet or Wall Connector wiring must be checked
What this alert means:
High temperature detected by Wall Connector alerts indicate the building connection to the Wall Connector is
getting too warm, so charging has been slowed to protect the wiring and Wall Connector.
This is not typically an issue with your vehicle or your Wall Connector, but rather an issue with the building wiring.
This may be caused by a loose building wiring connection to the Wall Connector and can be fixed quickly by an
electrician.
What to do:
Contact an electrician to inspect the building wiring connection to the Wall Connector. They should make sure that
all wires are properly connected and torqued according to the installation guide for the Wall Connector.
Wall Connector installation guides can be found here.
CP_a102
Unable to charge - Wall connection too hot
Outlet or Wall Connector wiring must be checked
What this alert means:
High temperature detected by Wall Connector alerts indicate the building connection to the Wall Connector is
getting too warm, so charging has been slowed to protect the wiring and Wall Connector.
This is not typically an issue with your vehicle or your Wall Connector, but rather an issue with the building wiring.
This may be caused by a loose building wiring connection to the Wall Connector and can be fixed quickly by an
electrician.
What to do:
Contact an electrician to inspect the building wiring connection to the Wall Connector. They should make sure that
all wires are properly connected and torqued according to the installation guide for the Wall Connector.
For more information, see the installation guide for your Wall Connector.
CP_a143
Charging adapter has electric arc flash hazard
Use different charging equipment
What this alert means:
Charging is unavailable because your vehicle has detected an electric arc flash hazard in the third-party charging
adapter used to connect a Combined Charging System (CCS) charge handle to your vehicle

This does not indicate an issue with your Mobile Connector or vehicle, but instead points to an issue with the wall
outlet / electrical installation the Mobile Connector is connected to.
A warm outlet may be caused by a plug that is not fully inserted, a loose building wiring connection to the outlet, or
an outlet that is beginning to wear out.
What to do:
Make sure your adapter is fully plugged into the outlet. If charging speed does not return to normal, contact an
electrician to inspect the outlet and building wiring connections to the outlet and complete any repairs needed.
If the outlet is worn, it should be replaced with a high-quality outlet. Consider upgrading to a Tesla Wall Connector
for greater convenience and highest charging speed.
UMC_a009
Cannot charge - Charge handle temperature high
Check charge handle or charge port for debris
What this alert means:
Charging has been interrupted because the Mobile Connector has detected a high temperature in the charge handle
that connects to your vehicle