2023 GMC Trucks Tire Fitment Guide

2023 GMC Trucks vehicles use 20 sizes: 255/65R17, 235/55R20, and 235/65R18 for Acadia; 265/65R18, 275/60R20, 275/65R18, and 285/70R17 for Canyon; 305/55R22 and 305/70R18 for Hummer EV; 265/60R20, 275/60R20, 275/65R18, 275/50R22, 255/70R17, 265/70R17, and 265/65R18 for Sierra 1500; 275/65R20, 275/70R18, 245/75R17, and 265/70R17 for Sierra 2500 HD; 275/65R20, 275/70R18, and 235/80R17 for Sierra 3500 HD; 225/65R17, 235/50R19, and 225/60R18 for Terrain; and 275/60R20, 275/50R22, and 265/65R18 for Yukon and Yukon XL.

Those sizes do not share one common wheel diameter across the whole 2023 GMC Trucks range. Rim diameters run from 17 through 22 inches, and the few sizes with product coverage show wheel-width ranges such as 6.0-7.5 inches for 235/80R17, 6.5-7.5 inches for 245/75R17, 7.0-9.0 inches for 255/65R17 and 265/70R17, and 7.5-9.5 inches for 275/65R18 and 275/65R20. The practical takeaway is simple: confirm the exact model first, then verify the wheel diameter and actual rim width before choosing a tire.

On a 2023 GMC Trucks tire, 255/65R17 is a metric radial code. The 255 is the nominal section width in millimeters, 65 is the aspect ratio, R means radial construction, and 17 is the wheel diameter in inches. Within the 2023 GMC Trucks lineup, that size belongs to the Acadia and mounts on a 17-inch wheel.

That code matters because a 255/65R17 is not interchangeable with Acadia's 18-inch or 20-inch alternatives without changing the wheel itself. BFGoodrich offers this size with a 7.0-9.0 inch rim-width range, an RWL sidewall, and a 114S service description, with a 2,600-pound maximum load at 65 psi. If your Acadia has 17-inch wheels, matching the size code on the sidewall is the quickest way to avoid ordering a tire built for a different wheel package.

No, 2023 GMC Trucks models do not use the same tire size. Acadia, Terrain, Canyon, Sierra 1500, Sierra 2500 HD, Sierra 3500 HD, Yukon, Yukon XL, and Hummer EV all have their own fitment patterns, and even within a single model there can be multiple wheel diameters and tire sizes. A few sizes are shared across related vehicles, such as 265/65R18 and 275/60R20 on Canyon, Sierra 1500, Yukon, and Yukon XL, but there is no single GMC-wide size.

That means year and make alone are not enough for accurate tire selection on 2023 GMC Trucks. A Yukon and a Terrain are both GMC utilities, yet their tire dimensions, wheel diameters, and intended use are very different, and the same is true when comparing a Sierra 1500 to a Sierra 3500 HD. Checking the model badge and the size molded into the current tire sidewall usually narrows the search much faster than trying to compare across the whole GMC range.

2023 GMC Trucks tires with current product coverage come in both RWL and RBL sidewall styles depending on size. RWL appears on sizes such as 255/65R17, 275/65R18, 285/70R17, 265/70R17, 275/70R18, and 245/75R17, while RBL appears on 275/65R20, 235/80R17, and 225/65R17. Those sidewall treatments are tied to the exact size and product, not simply to the GMC model name.

The choice is mostly about appearance and the character you want the vehicle to present. Raised white letters suit buyers who like a more traditional truck look, especially on Canyon and Sierra applications with all-terrain tires, while black sidewalls keep the look more understated on HD trucks and crossover fitments. If appearance matters as much as fitment, check the specific sidewall style before committing to a tire even when the size itself is correct.

BFGoodrich is the brand represented across the currently covered 2023 GMC Trucks sizes, primarily through the All-Terrain T/A KO2 line. It appears in 255/65R17, 275/65R18, 285/70R17, 265/70R17, 275/65R20, 275/70R18, 245/75R17, 235/80R17, and 225/65R17. Every one of those covered products uses radial construction and a truck-oriented all-terrain format.

That concentration makes sense for GMC applications where owners often want a more rugged replacement than a highway-focused original tire. It also means the first question is less about choosing among many brands and more about making sure the size, wheel diameter, sidewall style, and load version align with your specific Acadia, Canyon, Sierra, Terrain, or Yukon application. Once those basics are correct, brand choice becomes much simpler because the range is tightly focused.

For 2023 GMC Trucks applications using 285/70R17, BFGoodrich offers two All-Terrain T/A KO2 versions. One carries a 116Q service description, a 2,755-pound maximum load at 50 psi, and a 50.3-pound weight; the other carries a 121/118R service description, a 3,195-pound maximum load at 80 psi, and a 58.2-pound weight. Both use the same 17-inch rim diameter, 7.5-9.5 inch approved rim-width range, radial construction, and RWL sidewall styling.

The practical difference is that the two tires serve different load and speed needs even though they share the same nominal size. Q is rated to 99 mph, while R is rated to 106 mph, and the heavier-duty 121/118R version also carries substantially more load at a higher inflation pressure. Canyon owners should choose between them by matching the truck's intended use and load requirement, not by assuming every 285/70R17 is identical.

Rim-width guidance for covered 2023 GMC Trucks sizes varies by tire size. 255/65R17 and 265/70R17 fit 7.0-9.0 inch rims, 275/65R18 and 275/65R20 fit 7.5-9.5 inch rims, 285/70R17 also fits 7.5-9.5 inch rims, 275/70R18 fits 7.0-9.0 inch rims, 245/75R17 fits 6.5-7.5 inch rims, 235/80R17 fits 6.0-7.5 inch rims, and 225/65R17 fits 6.0-8.0 inch rims. Those ranges are tied to the tire size itself, not just the model family.

That is especially important on 2023 GMC Trucks because several models offer multiple wheel packages. A Sierra 1500 or Canyon may share a rim diameter with another GMC, yet still require a different tire width range, while HD truck fitments can be narrower or heavier-duty than light-duty truck sizes. Before mounting a new set, confirm both the wheel diameter and the actual rim width so the tire falls within the approved range for that specific size.

The covered 2023 GMC Trucks products are modern radial truck tires and none of the available size markings indicate tube-type construction. Sizes such as 255/65R17, 275/65R18, 285/70R17, 265/70R17, 275/65R20, 275/70R18, 245/75R17, 235/80R17, and 225/65R17 appear in standard tubeless-style modern radial format. That points buyers toward conventional tubeless fitment on the correct wheel type.

The important check is the wheel, not just the tire. If a wheel is damaged, excessively corroded at the bead seat, or otherwise unsuitable for sealing, the solution is to repair or replace the wheel rather than assume a tube will solve the problem. On a 2023 GMC Trucks application, a clean tubeless wheel, correct valve stem, and proper bead seating are the real setup priorities.

A 2023 GMC Trucks vehicle should be stored away from direct sunlight, standing moisture, and ozone-producing equipment such as electric motors, battery chargers, welders, and air compressors. Keeping the tires clean, properly inflated, and parked on a cool surface helps protect the rubber during long idle periods. Rolling the vehicle periodically also helps prevent temporary flat spotting and keeps the contact patch from sitting in one place for months.

That matters even on a late-model GMC because trucks, SUVs, and crossovers often spend long stretches parked between weekend trips, towing duty, or seasonal use. If storage will be prolonged, many owners either move the vehicle slightly every few weeks or support it in a way that reduces constant load on one section of the tire. Good storage habits preserve ride quality and reduce the chance of finding weathering or vibration issues when it is time to drive again.

On a 2023 GMC Trucks vehicle, tire life should be judged by age and condition as much as by tread depth. A good rule is to begin more careful annual evaluation once tires reach about five to seven years from the DOT date code, and to treat around ten years as a serious replacement point even if the tread still looks usable. Low-mileage collector and secondary-use vehicles often age out tires before they wear them out.

That approach is especially useful on GMC trucks and SUVs that may see seasonal towing, camping, or occasional utility use rather than daily commuting. Sidewall cracking, hardening rubber, vibration, and pressure loss are all more important warning signs than odometer miles alone. Checking the date code on each tire gives you a clearer picture of true service age, particularly if the vehicle was bought used or has seen mixed replacement history over time.

Tires on a 2023 GMC Trucks vehicle should be inspected before every drive and more carefully before any longer trip, towing run, or heavy-load use. Look for cuts, punctures, bulges, uneven tread wear, cracking, objects in the tread, and any sign that a tire is losing pressure. A quick pressure check matters just as much as a visual inspection, especially on larger trucks where load demand can change from trip to trip.

That habit is especially important on Sierra and Yukon models that may alternate between everyday use and more demanding work. A tire that appears fine in the driveway can still have an underinflation issue, a damaged valve stem, or a wear pattern that points to alignment or suspension trouble. Catching those problems early protects the tire, improves stability, and helps you avoid discovering an issue after the vehicle is already loaded or on the highway.

Yes, 2023 GMC Trucks tires in the covered sizes are built in modern radial construction and carry highway-capable speed ratings where products are available. Current examples include S-rated tires with a 112 mph ceiling, R-rated tires with a 106 mph ceiling, and Q-rated tires with a 99 mph ceiling. Those ratings are well above normal U.S. highway speeds, although the exact rating still depends on the specific tire version and size.

The bigger real-world question is whether the chosen tire matches the vehicle's duty cycle. A Canyon or Sierra used off-road, for towing, or under heavy load needs the right load-capacity version just as much as a suitable speed rating, while a Terrain or Acadia needs the correct wheel-diameter match first. Safe highway use starts with proper inflation, sound wheels, correct load range, and a tire in good condition rather than simply choosing by size code alone.

Inflation pressure on 2023 GMC Trucks tires depends on the exact size and tire version. Covered examples include 255/65R17 at 2,600 pounds maximum load at 65 psi, 275/65R18 at 3,415 pounds at 80 psi, 285/70R17 at either 2,755 pounds at 50 psi or 3,195 pounds at 80 psi, 265/70R17 at either 2,470 pounds at 50 psi or 3,195 pounds at 80 psi, 275/65R20 at 3,750 pounds at 80 psi, and 235/80R17 at 3,085 pounds at 80 psi. Those are tire capacity limits, not blanket vehicle settings.

Use the GMC placard or owner's manual for the factory vehicle recommendation, then confirm that the tire you choose is appropriate for that application. A Sierra 2500 HD, for example, should not borrow inflation assumptions from an Acadia or Terrain just because both wear 17-inch tires. Matching pressure to the exact size, load version, and vehicle role is the safest path and prevents underinflation or overinflation based on the wrong reference point.

Before taking a 2023 GMC Trucks vehicle on a longer drive, inspect each tire for visible cracking, cuts, punctures, bulges, and uneven wear, then verify cold inflation pressure on all four corners and the spare. It is also wise to check the date codes, valve stems, and tread depth, especially on a truck or SUV that sees irregular use. Any vibration, pull, or repeated pressure loss deserves attention before the trip starts.

Tires are only one part of the pre-drive routine, but they are the part that directly carries the vehicle and load. On a Sierra, Yukon, or Canyon headed out for towing or vacation use, also think about payload, alignment condition, and whether the tire's load version matches the job. On an Acadia or Terrain, the same principles apply, just with more emphasis on correct wheel-size matching and avoiding a last-minute discovery that the tires are older than expected.