2021 Cadillac XT4 Spare Tire
The Cadillac XT4 does not come standard with a spare tire. Rather, it is equipped with run-flat tires that allow the vehicle to continue to drive, at a limited speed and distance, when they are flat. This sleek SUV design features an optional Compact Spare Tire (RJA), a T135/70R18 blackwall which is a little smaller in size and lighter in weight than regular tires. If you prefer to have a spare tire, Cadillac does offer a spare tire kit for this model at an additional cost. Depending on the trim level, the kit may come complete with a jack and tools necessary to change the tire. It should be noted that cargo space may be affected by the addition of the spare tire as it requires a specific storage area within the vehicle.
2021 Cadillac XT4 comes with 2 OEM tire size options. Select the original equipment the tire size installed on your vehicle to see all spare tires that have roughly the same tire diameter and can be used as a temporary replacement in the event of a flat tire. Remember that load carrying capacity of the spare tire must be the same or higher than the load carrying capacity of the original equipment tires in order to safely support the weight of your vehicle. Refer to vehicle owner's manual or contact Cadillac dealership to confirm the correct 2021 Cadillac XT4 spare tire size.
235/60R18
235/60R18 tire has a diameter of 29.1". These temporary spare tires fit the acceptable tire diameter range of 28.2" to 30".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T155/85D18from $185.43 | 28.4" | -2.4% |
| T155/80R19from $173.33 | 28.8" | -1% |
| T155/90D18from $163.99 | 29" | -0.3% |
| T155/90R18from $134.96 | 29" | -0.3% |
| T165/90R17from $119.99 | 28.7" | -1.4% |
| T165/90D18from $115.96 | 29.7" | 2.1% |
| T165/90D17from $109.43 | 28.7" | -1.4% |
| T175/90D17 | 29.4" | 1% |
| T175/80R18 | 29" | -0.3% |
| T175/80D18 | 29" | -0.3% |
| T165/90R18 | 29.7" | 2.1% |
| T155/80D19 | 28.8" | -1% |
| T145/80R20 | 29.1" | 0% |
| T175/90R17 | 29.4" | 1% |
245/45R20
245/45R20 tire has a diameter of 28.7". These temporary spare tires fit the acceptable tire diameter range of 27.8" to 29.6".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T155/85D18from $185.43 | 28.4" | -1% |
| T145/80R19from $183.34 | 28.1" | -2.1% |
| T155/80R19from $173.33 | 28.8" | 0.3% |
| T155/90D18from $163.99 | 29" | 1% |
| T155/90R18from $134.96 | 29" | 1% |
| T165/90R17from $119.99 | 28.7" | 0% |
| T155/90D17from $114.99 | 28" | -2.4% |
| T165/90D17from $109.43 | 28.7" | 0% |
| T145/80R20 | 29.1" | 1.4% |
| T155/80D19 | 28.8" | 0.3% |
| T155/90R17 | 28" | -2.4% |
| T175/80D18 | 29" | 1% |
| T175/80R18 | 29" | 1% |
| T175/90D17 | 29.4" | 2.4% |
| T175/90R17 | 29.4" | 2.4% |
More Cadillac XT4 Spare Tires
All listed guides, data and/or calculations are for informational purposes only. Spare-Tires.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information. Always refer to vehicle owner's manual for the correct spare tire size configuration.