2022 Cadillac carried the brand’s modern performance-luxury identity into a lineup of sharp rear-wheel-drive sport sedans, with the CT4 and CT5 serving buyers who wanted Cadillac character in distinctly different footprints. In this model year, tire selection is not a one-size-fits-all exercise, because the two-model range uses 10 different metric radial sizes spread across 17-, 18-, 19-, and 20-inch wheels. The practical choice comes down first to identifying whether you have a CT4 or CT5, then confirming whether your car uses a square or staggered setup and which rim diameter is already on the car. Starting with the exact model and wheel size will narrow the field quickly and keep the tire search accurate.
Which Tire Size Is Right for Your 2022 Cadillac
Ten tire sizes are used across 2022 Cadillac vehicles, and they vary by model rather than being shared across the full range. Every size here is a metric radial, so the key decision is not bias-ply versus radial construction but confirming the correct model, axle fitment, and rim diameter first. Understanding those distinctions before choosing a product saves time and helps match the tire to the car correctly.
Year(s): 2022|Fit(s): CT4|Construction: Radial|Rim: 17 in
225/45R17 is a metric radial size with a 225-millimeter section width, a stated 45-series aspect ratio, and a 17-inch rim diameter. This CT4-specific size is available from BFGoodrich and Nitto in Blackwall form, with W speed ratings up to 168 mph appearing across the size and load capacities reaching 1,477 pounds at 50 psi on some products. It suits CT4 applications that use the smaller 17-inch wheel package and keeps the search focused on modern radial options rather than vintage-style construction choices.
Year(s): 2022|Fit(s): CT4|Construction: Radial|Rim: 19 in
235/35R19 is a metric radial size with a 235-millimeter section width, a 35-series aspect ratio, and a 19-inch rim diameter. This CT4-specific size comes from Nitto and BFGoodrich in Blackwall styling, and speed ratings vary by product between W at 168 mph and Y at 186-plus mph. It is the right path for CT4 fitments that call for a lower-profile 19-inch tire, especially when preserving the intended wheel diameter and stance matters.
Year(s): 2022|Fit(s): CT4|Construction: Radial|Rim: 18 in
235/40R18 is a metric radial size with a 235-millimeter section width, a 40-series aspect ratio, and an 18-inch rim diameter. This CT4-specific size is available from BFGoodrich and Nitto in Blackwall form, with W-rated products to 168 mph and Y-rated products to 186-plus mph, and load capacities reaching 1,521 pounds at 50 psi on some versions. It is a strong match for CT4 owners running 18-inch wheels who want to stay with the size family intended for that chassis.
Year(s): 2022|Fit(s): CT4|Construction: Radial|Rim: 18 in
255/35R18 is a metric radial size with a 255-millimeter section width, a 35-series aspect ratio, and an 18-inch rim diameter. This CT4-specific size is available from BFGoodrich and Nitto in Blackwall styling, with W speed ratings up to 168 mph across the size and load capacities reaching 1,477 pounds at 50 psi on some products. It typically serves the wider end of a CT4 fitment strategy, so buyers should confirm whether their car uses this size at one axle rather than assuming a same-size setup all around.
Year(s): 2022|Fit(s): CT4|Construction: Radial|Rim: 18 in
275/35R18 is a metric radial size with a 275-millimeter section width, a 35-series aspect ratio, and an 18-inch rim diameter. This CT4-specific size is offered by BFGoodrich and Nitto in Blackwall form, and speed ratings vary by product between W at 168 mph and Y at 186-plus mph, with load capacities reaching 1,709 pounds at 50 psi on some products. It belongs to CT4 applications that use a wider 18-inch tire, so it is best chosen after verifying whether the car carries a staggered wheel-and-tire combination.
Year(s): 2022|Fit(s): CT5|Construction: Radial|Rim: 18 in
245/45R18 is a metric radial size with a 245-millimeter section width, a 45-series aspect ratio, and an 18-inch rim diameter. This CT5-specific size is available from BFGoodrich and Nitto in Blackwall styling, with speed ratings varying by product between W at 168 mph and Y at 186-plus mph, and load capacities reaching 1,764 pounds at 50 psi on some versions. It fits CT5 applications built around an 18-inch wheel package and is a good starting point for owners confirming a more conventional sidewall height within the CT5 range.
Year(s): 2022|Fit(s): CT5|Construction: Radial|Rim: 20 in
255/35R20 is a metric radial size with a 255-millimeter section width, a 35-series aspect ratio, and a 20-inch rim diameter. This CT5-specific size comes from BFGoodrich and Nitto in Blackwall form, with speed ratings varying by product between W at 168 mph and Y at 186-plus mph, and load capacities reaching 1,609 pounds at 50 psi on some products. It is the correct direction for CT5 fitments using the largest wheel diameter in this year’s Cadillac sedan range.
Year(s): 2022|Fit(s): CT5|Construction: Radial|Rim: 19 in
245/40R19 is a metric radial size with a 245-millimeter section width, a 40-series aspect ratio, and a 19-inch rim diameter. This CT5-specific size is offered by BFGoodrich in Blackwall form, with speed ratings varying by product between W at 168 mph and Y at 186-plus mph, and load capacities reaching 1,653 pounds at 50 psi on some products. It suits CT5 applications on 19-inch wheels where maintaining the correct front or square fitment size is more important than simply matching width alone.
Year(s): 2022|Fit(s): CT5|Construction: Radial|Rim: 19 in
275/35R19 is a metric radial size with a 275-millimeter section width, a 35-series aspect ratio, and a 19-inch rim diameter. This CT5-specific size is available from BFGoodrich and Nitto in Blackwall styling, and speed ratings vary by product between W at 168 mph and Y at 186-plus mph, with load capacities reaching 1,764 pounds at 50 psi on some products. It is generally the wider companion within a 19-inch CT5 setup, so confirming axle position before purchase is especially important.
Year(s): 2022|Fit(s): CT5|Construction: Radial|Rim: 19 in
305/30R19 is a metric radial size with a 305-millimeter section width, a 30-series aspect ratio, and a 19-inch rim diameter. This CT5-specific size is available from Nitto and Pro-Trac, with Blackwall, RWL, and Redline sidewall styles offered and W speed ratings up to 168 mph appearing on products that state a speed symbol. It is the most specialized size in the 2022 Cadillac range and will appeal to CT5 owners who need the widest 19-inch fitment while also choosing between understated or more distinctive sidewall appearance.
Two 2022 Cadillac models are covered here: the CT4 and CT5. They do not share the same tire sizes, so identifying the model is the first step before narrowing the search by wheel diameter and exact fitment. Select a model below to see model-specific tire history, size breakdowns, and the products that match that car.
2022 Cadillac CT4
The 2022 Cadillac CT4 is Cadillac’s compact sport sedan, positioned as the smaller and more agile member of the brand’s rear-wheel-drive luxury lineup. Its tires mount on 17-, 18-, and 19-inch wheels depending on the setup, which means the exact size matters just as much as the model name when replacing tires.
The 2022 Cadillac CT5 is the larger midsize sport sedan in the family, blending Cadillac luxury with a broader footprint and more wheel-and-tire variation across trims and performance packages. Its tires mount on 18-, 19-, and 20-inch wheels, so CT5 owners should verify both the model and the wheel package before settling on a size.
Forty products are available across 10 tire sizes for 2022 Cadillac vehicles. CT4 sizes span 17-, 18-, and 19-inch radial choices from BFGoodrich and Nitto in Blackwall form, while CT5 sizes add 20-inch options plus 305/30R19 selections from Nitto and Pro-Trac with Blackwall, RWL, and Redline sidewalls. Confirm the exact size first, since speed ratings can vary within the same size.
These FAQs sort out the real questions around 2022 Cadillac tire selection, including model-specific sizing, staggered-width fitments, speed-rating differences within the same size, sidewall choices on 305/30R19, and smart care for low-use modern performance sedans.
Size Basics & Fitment
What tire sizes fit 2022 Cadillac vehicles?
2022 Cadillac vehicles use 10 different tire sizes split between two models. The CT4 uses 225/45R17, 235/35R19, 235/40R18, 255/35R18, and 275/35R18. The CT5 uses 245/45R18, 255/35R20, 245/40R19, 275/35R19, and 305/30R19. Rim diameters across the range are 17, 18, 19, and 20 inches, and several sizes include published rim-width ranges such as 7.0 to 8.5 inches for 225/45R17, 8.0 to 9.5 inches for 235/40R18, 9.0 to 11.0 inches for 275/35R18, and 7.5 to 9.0 inches for 245/45R18.
Model identification matters because no tire size is shared across both 2022 Cadillac model lines here. Wheel diameter matters just as much, especially on cars with larger wheel packages or staggered front-and-rear sizing. A quick check of the tire sidewall already on the car will usually confirm the exact size faster than relying on appearance alone.
What does 225/45R17 mean on a 2022 Cadillac tire?
On a 2022 Cadillac, 225/45R17 is a modern metric radial size. The 225 is the nominal section width in millimeters, 45 is the aspect ratio, meaning the sidewall height is 45 percent of the section width, R means radial construction, and 17 is the wheel diameter in inches. For 2022 Cadillac applications, this size is used on the CT4 and fits 17-inch wheels, with published rim-width ranges extending from 7.0 to 8.5 inches on some products and 8.5 to 10.0 inches on others.
That code matters because each part affects fitment, profile, and wheel compatibility. Even when two tires share the same section width, a different aspect ratio or rim diameter creates a different overall fit. If your CT4 currently wears 17-inch tires, matching the complete code is the safest starting point before comparing brand, load rating, and intended use.
Do all 2022 Cadillac models use the same tire size?
No. The 2022 Cadillac CT4 and 2022 Cadillac CT5 use completely different tire size groups. The CT4 range runs from 225/45R17 through wider 18- and 19-inch sizes, while the CT5 range starts at 245/45R18 and extends to 255/35R20 and 305/30R19. Several of those sizes suggest front-and-rear width differences within the same model family, especially where both narrower and wider sizes appear on the same wheel diameter.
That means year and make alone are not enough to select a replacement tire. Buyers should confirm the model first, then verify whether the car uses the same size at all four corners or a staggered combination. Reading both front and rear sidewalls before ordering is a smart habit on modern Cadillac sport sedans.
Buying the Right Tire
What sidewall styles are available for 2022 Cadillac tires?
Most 2022 Cadillac tire sizes here are available in Blackwall form, which suits the modern factory look of the CT4 and CT5. The exception is 305/30R19 for the CT5, where Blackwall, RWL, and Redline sidewall treatments are all available. That makes 305/30R19 the one size in this group where sidewall appearance becomes a meaningful part of the selection, rather than just a fitment decision.
For owners aiming to keep a contemporary OE-style appearance, Blackwall is the most straightforward match. RWL and Redline choices introduce a more customized visual effect and may appeal to buyers building a more personalized performance look. Sidewall style will not change the basic size code, but it can change how the car presents visually from curbside distance.
What brands make tires for 2022 Cadillac vehicles?
2022 Cadillac tire sizes are covered primarily by BFGoodrich and Nitto, with Pro-Trac joining the mix in 305/30R19. BFGoodrich appears across nearly every size in several g-Force family variations, while Nitto covers many of the same modern performance sizes with the NT555 G2. Pro-Trac’s contribution is more specialized, centered on 305/30R19 with sidewall styling options that include RWL and Redline.
Brand choice matters less than matching the exact size, wheel diameter, and intended axle position first. Once fitment is confirmed, buyers can compare details such as sidewall style, speed symbol, load capacity, and published rim-width range. That approach keeps the search grounded in compatibility before moving into brand preference.
What is the difference between BFGoodrich g-Force Phenom T/A and Nitto NT555 G2 for a 2022 Cadillac?
On several 2022 Cadillac sizes, BFGoodrich g-Force Phenom T/A and Nitto NT555 G2 overlap closely on fitment but differ in details such as sidewall treatment, speed symbol, load figure, and sometimes published rim-width information. In 235/35R19, for example, the BFGoodrich g-Force Phenom T/A carries a 91Y marking with a 1,356-pound load figure at 50 psi and an 8 to 9.5-inch rim-width range, while the Nitto NT555 G2 appears as a 91W XL product. In 275/35R18, the BFGoodrich version carries a 99Y marking and 1,709-pound rating at 50 psi, while the Nitto version appears as a 99W XL with the same 1,709-pound load figure at 50 psi.
Those distinctions give buyers a practical way to narrow the field after fitment is settled. If one tire in the correct size carries a higher speed symbol or a clearer rim-width recommendation that suits the wheel already on the car, that can help break the tie. Comparing the full sidewall code and published wheel range is more useful than comparing model names alone.
Fitting & Setup
What rim width do 2022 Cadillac tires require?
Published rim-width ranges vary by size on 2022 Cadillac applications. Examples include 225/45R17 at 7.0 to 8.5 inches on some products and 8.5 to 10.0 inches on others, 235/40R18 at 8.0 to 9.5 inches, 255/35R18 at 8.5 to 10.0 inches, 275/35R18 at 9.0 to 11.0 inches, 245/45R18 at 7.5 to 9.0 inches, 255/35R20 at 8.5 to 10.0 inches, 245/40R19 at 8.0 to 9.5 inches, and 275/35R19 at 9.0 to 11.0 inches.
Those ranges are important because two tires with the same nominal size can still publish slightly different acceptable wheel widths. If the car already has factory wheels, the existing wheel width often falls inside the intended range, but it is still wise to compare the exact wheel against the chosen tire’s recommendation. That check becomes especially important on staggered setups and aftermarket wheels.
Do 2022 Cadillac tires require inner tubes?
The 2022 Cadillac tire sizes here are modern radial performance sizes, and none carries a tube-type marking. The sidewall codes shown across these sizes use standard modern metric radial construction with speed symbols such as W and Y, which aligns with tubeless passenger-car fitment rather than vintage tube-type practice.
Even so, wheel condition still matters. A bent rim, damaged bead seat, or leaking valve stem can create air-loss issues that look like tire problems but are really wheel or hardware problems. If a car has aftermarket wheels or has sat for a long period, checking valve stems and bead sealing during installation is time well spent.
Maintenance, Storage & Longevity
How should I store a 2022 Cadillac when the tires are fitted?
A 2022 Cadillac should be stored in a cool, dry space away from direct sunlight, electric motors, generators, welders, and other ozone sources that can age rubber prematurely. Clean concrete is fine, but keeping the car away from chemical spills, standing moisture, and constant UV exposure will help preserve the tires. Maintaining the tires at proper pressure during storage also helps reduce flat-spotting and casing stress.
If the car will sit for long periods, move it occasionally to change the contact patch or place it on stands if that fits the storage plan. Modern radials generally tolerate storage better than older bias-ply tires, but they still benefit from routine movement and stable inflation. A well-stored performance sedan usually returns to service with fewer vibration and pressure-retention issues.
How long do tires on a 2022 Cadillac typically last?
On a 2022 Cadillac, tire age matters at least as much as tread depth because many sporty luxury sedans cover relatively low annual mileage. A sensible rule is to begin evaluating tires closely once they reach roughly five to seven years from the DOT date code, and to treat around ten years as a serious replacement threshold even if the tread still looks serviceable.
Driving style, climate, alignment, and storage conditions can shorten that timeline, especially on low-profile performance tires. A tire that still has tread but shows cracking, hardening, impact damage, or irregular wear should not be kept in service simply because mileage is low. Age, condition, and how the car has been stored tell the fuller story.
How often should tires on a 2022 Cadillac be inspected?
Tires on a 2022 Cadillac should be inspected before every drive and given a more careful look before any longer trip. Check inflation pressure, tread wear pattern, punctures, sidewall damage, and any signs of rubbing or bulging. On performance-oriented sedans with staggered sizes, it is especially important to inspect all four tires individually rather than assuming the front and rear are interchangeable.
A quick routine catches problems early, including inner-edge wear from alignment issues or damage from potholes that may not be visible at a glance. If the car has been parked for weeks, check for pressure loss and vibration during the first miles back on the road. Regular inspection is one of the simplest ways to protect both the tires and the wheels.
Safety & Road Use
Are 2022 Cadillac tires safe for highway driving?
Yes, the 2022 Cadillac tire sizes here are modern radial performance tires with speed symbols that include W and Y on many applications. W-rated tires carry a 168 mph ceiling, while Y-rated tires carry a 186-plus mph ceiling. Those ratings are far beyond normal U.S. highway speeds, so under ordinary road use the larger concerns are condition, inflation, alignment, and matching the correct size to the correct wheel and axle position.
That does not mean every tire in the correct size is interchangeable. Buyers should still check the exact sidewall code because some sizes include more than one speed symbol depending on the product. On a modern Cadillac sport sedan, suspension condition, brake condition, and proper tire matching usually matter more in real-world highway confidence than chasing the highest speed letter alone.
What inflation pressure should I use for 2022 Cadillac tires?
Load-and-pressure figures appear on many of these 2022 Cadillac sizes, but they are tire capacity figures rather than blanket vehicle inflation settings. Examples include 225/45R17 at up to 1,477 pounds at 50 psi on some products, 235/40R18 at up to 1,521 pounds at 50 psi, 275/35R18 at up to 1,709 pounds at 50 psi, 245/45R18 at up to 1,764 pounds at 50 psi, 255/35R20 at up to 1,609 pounds at 50 psi, and 275/35R19 at up to 1,764 pounds at 50 psi.
Use the Cadillac door-jamb placard or owner’s manual for the vehicle’s recommended cold inflation pressure, then confirm that the chosen tire’s own maximum load-and-pressure marking is appropriate for the application. A capacity figure from one size should never be transferred to another size. Correct pressure is one of the biggest factors in wear, handling balance, and ride quality.
What should I check before taking a 2022 Cadillac on a longer drive?
Before a longer trip in a 2022 Cadillac, inspect all four tires for cuts, cracking, punctures, bulges, uneven wear, and correct cold inflation pressure. Check the spare as well if the car carries one, and confirm that valve stems are in good condition. On cars with staggered sizes, make sure the front and rear tire sizes are exactly where they belong, since a simple rotation assumption can create handling or clearance problems.
Tire prep should be part of a broader pre-drive inspection that also includes brakes, fluids, lights, and suspension condition. Modern low-profile tires can hide damage until the wheel is turned or the tread is viewed from inside, so a deliberate walkaround is worth the time. Catching one pressure loss or one impact bubble before departure can save a trip and a wheel.
