Specifications -> Wheels and Tires for Your Tesla Model-Y SUV 2023

Wheels and Tires  
Wheel Specifications (Factory)  
Wheel Diameter  
Location  
Width (in)  
9.5  
Offset (mm)  
19"  
20"  
21"  
21"  
Front/Rear  
Front/Rear  
Front  
45  
45  
40  
48  
9.5  
9.5  
Rear  
10.5  
Lug Nut Torque  
129 lb. ft (175 Nm)  
21 mm  
Lug Nut Socket Size  
NOTE: For instructions on how to jack/lift Model Y, see Jacking and Lifting on page 197.  
Tire Specifications (Factory)  
Tire Size  
19"  
Location  
Front/Rear  
Front/Rear  
Front  
Size  
255/45R19 XL  
255/40R20 XL  
255/35R21 XL  
275/35R21 XL  
20"  
21"  
21"  
Rear  
Tire pressures vary depending on the type of tires fitted. Refer to the tire pressures printed on the Tire and  
Loading Information label. This label is located on the center door pillar and is visible when the driver’s door is  
open (see Maintaining Tire Pressures on page 184).  
Winter tires can be purchased from a Tesla service center or may be available for purchase on the Tesla web site.  
Specifications  
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Wheels and Tires  
Understanding Tire Markings  
Laws require tire manufacturers to place standardized information on the sidewall of all tires. This information  
identifies and describes the fundamental characteristics of the tire. It also provides the tire identification number  
(TIN) for certification of safety standards, and in case of a recall.  
1. Tire category: P indicates that the tire is for passenger vehicles.  
2. Tire width: This 3-digit number is the width (in millimeters) of the tire from sidewall edge to sidewall edge.  
3. Aspect ratio: This 2-digit number is the sidewall height as a percentage of the tread width. So, if the tread width is  
205 mm, and the aspect ratio is 50, the sidewall height is 102 mm.  
4. Tire construction: R indicates that the tire is of Radial ply construction.  
5. Wheel diameter: This 2-digit number is the diameter of the wheel rim in inches.  
6. Load index: This 2 or 3-digit number is the weight each tire can support. This number is not always shown.  
7. Speed rating: When stated, indicates the maximum speed (in mph) at which the tire can be used for extended  
periods. Q=99 mph (160 km/h), R=106 mph (170 km/h), S=112 mph (180 km/h), T=118 mph (190 km/h), U=124 mph  
(200 km/h), H=130 mph (210 km/h), V=149 mph (240 km/h), W=168 mph (270 km/h), Y=186 mph (300 km/h),  
(Y)=vehicle's top speed (exceeds the "Y" rating).  
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Wheels and Tires  
8. Load range: Shown as Standard Load (SL) or Extra Load (XL), the load range determines how much weight your  
tires can support at a specified tire pressure. When replacing tires, only use tires of the same load range. If towing  
with snow tires, ensure they are the same load range of the tires your vehicle came equipped with.  
9. Tire composition and materials: The number of plies in both the tread area and the sidewall area indicates how  
many layers of rubber coated material make up the structure of the tire. Information is also provided on the type  
of materials used.  
10. Maximum tire load: The maximum load which can be carried by the tire.  
11. Maximum permissible inflation pressure: This pressure should not be used for normal driving.  
12. U.S. DOT Tire Identification Number (TIN): Begins with the letters DOT and indicates that the tire meets all federal  
standards. The next 2 digits/letters represent the plant code where it was manufactured, and the last 4 digits  
represent the week and year of manufacture. For example, the number 1712 is used to represent the 17th week of  
2012. The other numbers are marketing codes used at the manufacturer’s discretion. This information can be used  
to contact consumers if a tire defect requires a recall.  
13. Treadwear grade: This number indicates the tire’s wear rate. The higher the treadwear number is, the longer it  
should take for the tread to wear down. A tire rated at 400, for example, lasts twice as long as a tire rated at 200.  
14. Traction grade: Indicates a tire’s ability to stop on wet roads. A higher graded tire should allow you to stop your  
vehicle in a shorter distance than a tire with a lower grade. Traction is graded from highest to lowest as AA, A, B,  
and C.  
15. Temperature grade: The tire’s resistance to heat is grade A, B, or C, with A indicating the greatest resistance. This  
grading is provided for a correctly inflated tire, which is being used within its speed and loading limits.  
Specifications  
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Wheels and Tires  
Uniform Tire Quality Grading  
The following information relates to the tire grading system developed by the National Highway Traffic Safety  
Administration (NHTSA), which grades tires by tread wear, traction and temperature performance. Tires that have  
deep tread, and winter tires, are exempt from these marking requirements.  
Where applicable, quality grades are found on the tire’s sidewall between the tread shoulder and maximum section  
width. For example:  
• TREADWEAR 180  
• TRACTION AA  
• TEMPERATURE A  
The quality grades are described next.  
NOTE: In addition to the marking requirements, passenger car tires must conform to Federal Safety Requirements.  
Treadwear  
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled  
conditions on a specified government test course.  
For example, a tire graded 150 wears one and a half times better on a government test course than a tire graded 100.  
The relative performance of tires depends on the actual conditions of their use, however, and can depart significantly  
from the norm due to variations in driving habits, service practices, road characteristics, and climate.  
Traction  
The traction grades, from highest to lowest, are: AA, A, B, and C. These grades represent a tire’s ability to stop on  
wet pavement as measured under controlled conditions on test surfaces of asphalt and concrete. A tire marked C  
might have poor traction performance.  
WARNING: Defective tires are dangerous. Do not drive if a tire is damaged, excessively worn, or is inflated to  
an incorrect pressure. The safety of the vehicle and occupants can be adversely affected. Check tires regularly  
for wear and to ensure there are no cuts, bulges or exposure of the ply/cord structure.  
WARNING: The traction grade assigned to the tire is based on straight-ahead braking tests, and does not  
include: acceleration, cornering, hydroplaning or peak traction characteristics.  
Temperature  
The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and  
its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel.  
Sustained high temperature can cause the tire to degenerate and reduce tire life, and excessive temperature can lead  
to sudden tire failure.  
The grade C corresponds to the minimum level of performance that all passenger car tires must meet under the  
Federal Motor Safety Standard No. 109. Grades B and A represent levels of performance on the laboratory test wheel  
that exceed the minimum requirements.  
WARNING: A tire’s temperature grade is established for a tire that is properly inflated and not overloaded.  
Excessive speed, under-inflation, or excessive loading, either separately or in combination, can cause heat  
buildup and possible tire failure.  
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Wheels and Tires  
Tire and Loading Glossaries  
General Wheel and Tire Terms  
Accessory Weight  
Bead  
The combined weight (in excess of those items replaced) of items available as factory  
installed equipment.  
The inner edge of a tire that is shaped to fit to the rim and form an air tight seal. The  
bead is constructed of steel wires which are wrapped, or reinforced, by the ply cords.  
Cold Tire Pressure  
Curb Weight  
The air pressure in a tire that has been standing in excess of three hours, or driven for less  
than one mile.  
The weight of a standard vehicle, including any optional equipment fitted, and with the  
correct fluid levels.  
Gross Vehicle Weight  
The maximum permissible weight of a vehicle with driver, passengers, load, luggage, and  
equipment.  
kPa (kilo pascal)  
A metric unit used to measure pressure. One kilo pascal equals approximately 0.145 psi.  
Maximum Inflation  
Pressure  
The maximum pressure to which the tire should be inflated. This pressure is given on the  
tire side wall in psi (lbf/in ).  
2
CAUTION: This pressure marked on the tire is the maximum allowed by the tire  
manufacturer. It is not the pressure Tesla recommends using for Model Y.  
Maximum Loaded  
Vehicle Weight  
The sum of curb weight, accessory weight, vehicle capacity weight, and production  
options weight.  
Production Options  
Weight  
The combined weight of options installed which weigh in excess of 3 lb (1.4 kg) more  
than the standard items that they replaced, and are not already considered in curb or  
accessory weights.  
2
Pounds per square inch (the unit used to measure tire pressure).  
PSI (lbf/in )  
Recommended Tire  
Inflation Pressure  
Tire inflation pressure, established by Tesla, which is based on the type of tires that are  
mounted on the vehicle at the factory. This information can be found on the Tire and  
Loading Information label located on the door pillar.  
Rim  
The metal support for a tire, or tire and tube, upon which the tire beads are seated.  
The number of seats multiplied by 150 lbs (68 kg) plus the rated amount of load/luggage.  
Vehicle Capacity  
Weight  
Load Carrying Definitions  
Normal occupant weight  
68 kilograms (150 lbs) times the number of occupants specified in the second column  
of the tables for calculating load limits (see Vehicle Loading on page 208).  
Occupant distribution  
Passenger car tire  
Distribution of occupants in a vehicle.  
A tire intended for use on passenger cars, multipurpose passenger vehicles, and  
trucks, that have a Gross Vehicle Weight Rating (GVWR) of 10,000 lbs (4536 kg) or  
less.  
Rim diameter  
Nominal diameter of the bead seat.  
Rim size designation  
Rim type designation  
Rim width  
Rim diameter and width.  
The manufacturing industry's designation for a rim by style or code.  
Nominal distance between the rim's flanges.  
Vehicle maximum load on Load on an individual tire that is determined by distributing to each axle its share of  
the tire  
the maximum loaded vehicle weight and dividing by two.  
Specifications  
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Wheels and Tires  
Vehicle normal load on the Load on an individual tire that is determined by distributing to each axle its share of  
tire  
the curb weight, accessory weight, and normal occupant weight and dividing by two.  
Pneumatic Radial Tire Definitions  
Bead separation  
Bias ply tire  
A breakdown of the bond between components in the bead.  
A pneumatic tire in which the ply cords that extend to the beads are laid at alternate angles  
substantially less than 90 degrees to the center line of the tread.  
Carcass  
The tire structure, except tread and sidewall rubber which, that when inflated, bears the load.  
The breaking away of pieces of the tread or sidewall.  
Chunking  
Cord  
The strands forming the plies in the tire.  
Cord separation  
Cracking  
The parting of cords from adjacent rubber compounds.  
Any parting within the tread, sidewall, or inner liner of the tire extending to cord material.  
Extra load tire  
A tire designed to operate at higher loads and higher inflation pressure than the  
corresponding standard tire.  
Groove  
The space between two adjacent tread ribs.  
Inner liner  
The layer(s) forming the inside surface of a tubeless tire that contains the inflating medium  
within the tire.  
Inner liner  
separation  
The parting of the inner liner from cord material in the carcass.  
Load rating  
The maximum load that a tire is rated to carry for a given inflation pressure.  
Maximum load  
rating  
The load rating for a tire at the maximum permissible inflation pressure for that tire.  
Measuring rim  
Open splice  
The rim on which a tire is fitted for physical dimension requirements.  
Any parting at any junction of tread, sidewall, or inner liner that extends to the cord material.  
The overall diameter of an inflated new tire.  
Outer diameter  
Overall width  
The linear distance between the exteriors of the sidewalls of an inflated tire, including  
elevations due to labeling, decorations, or protective bands or ribs.  
Ply  
A layer of rubber-coated parallel cords.  
Ply separation  
Pneumatic tire  
A parting of rubber compound between adjacent plies.  
A mechanical device made of rubber, chemicals, fabric and steel or other materials, that,  
when mounted on an automotive wheel, provides the traction and contains the gas or fluid  
that sustains the load.  
Radial ply tire  
Reinforced tire  
Section width  
Sidewall  
A pneumatic tire in which the ply cords that extend to the beads are laid at substantially 90  
degrees to the center line of the tread.  
A tire designed to operate at higher loads and at higher inflation pressures than the  
corresponding standard tire.  
The linear distance between the exteriors of the sidewalls of an inflated tire, excluding  
elevations due to labeling, decoration, or protective bands.  
The portion of a tire between the tread and bead.  
Sidewall separation The parting of the rubber compound from the cord material in the sidewall.  
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Wheels and Tires  
Snow tire  
Test rim  
A tire that attains a traction index equal to or greater than 110, compared to the ASTM  
E1136-93 (re-approved 2003, incorporated by reference, see §571.5) Standard Reference Test  
Tire when using the snow traction test as described in ASTM F1805-00 (incorporated by  
reference, see §571.5), and that is marked with an Alpine Symbol specified in S5.5(i) on at  
least one sidewall.  
The rim on which a tire is fitted for testing, and may be any rim listed as appropriate for use  
with that tire.  
Tread  
The portion of a tire that comes into contact with the road.  
A tread section running around the circumference of a tire.  
The pulling away of the tread from the tire carcass.  
Tread rib  
Tread separation  
Tread wear  
indicators (TWI)  
The projections within the principal grooves designed to give a visual indication of the  
degrees of wear of the tread.  
Wheel-holding  
The fixture used to hold the wheel and tire assembly securely during testing.  
fixture  
Specifications  
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Contacting Tesla Roadside Assistance  
Tesla Roadside Assistance is available to you 24 hours a day, 365 days a year, for the duration of your warranty  
period. Tesla Roadside Assistance is also available to speak with roadside service professionals to answer any  
questions and explain the proper procedure for transporting your vehicle.  
When contacting Tesla Roadside Assistance, please provide:  
• The Vehicle Identification Number (VIN). The VIN is displayed when you touch Controls > Software. The VIN can  
also been seen on the upper dashboard by looking through the driver's side of the windshield.  
Your exact location.  
• The nature of the problem.  
If available in your region, you can also expedite your request, by choosing the Roadside Assistance option in the  
Tesla mobile app.  
NOTE: For a detailed description of Tesla's Roadside Assistance policy, go to the support page on the Tesla web site  
for your region.  
Regional Phone Number(s)  
NOTE: The phone number is also available by touching Controls > Service.  
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