The 2020 Chevrolet Trucks Traverse sits in the modern three-row crossover class, blending family-duty space with a more substantial road presence than many midsize utility vehicles. Buyers usually know it as a vehicle expected to handle commuting, travel, and everyday cargo without sacrificing comfort. Tire fitment centers on two primary radial sizes, 255/65R18 and 255/55R20, depending on sub-model and wheel package. That makes the key decision less about vintage construction and more about confirming the correct wheel diameter first, then choosing the right overall tire style for how the Traverse is equipped and used. For owners replacing worn tires, trim level and actual wheel setup matter just as much as the size stamped on the sidewall.
Which Tire Size Is Right for The 2020 Chevrolet Trucks Traverse
The 2020 Chevrolet Trucks Traverse uses two primary tire sizes, and the right one depends on sub-model and wheel diameter. Both are radial metric sizes, but they mount on different rims, so the first step is confirming whether the vehicle has 18-inch or 20-inch wheels. Once that is settled, the decision becomes choosing the right tire within the proper size for the Traverse's trim level and actual wheel setup.
Fit(s): High Country, LS, LT, Premier, Premier Redline Edition, and RS
Construction: Radial|Rim: 20 in
255/55R20 is a metric radial size in which 255 identifies nominal section width in millimeters, 55 is the aspect ratio, R denotes radial construction, and 20 is the wheel diameter in inches. On the 2020 Chevrolet Trucks Traverse, this size belongs to 20-inch wheel applications rather than the full model line. Its overall dimensions keep it very close in height to the 18-inch fitment while pairing with a larger rim. This is the size to evaluate when the Traverse is equipped with 20-inch wheels and the goal is maintaining the proper metric fitment for that setup.
255/65R18 is a metric radial size that uses the same 255-millimeter nominal section width as the 20-inch option, but with a 65 aspect ratio and an 18-inch rim diameter. For the 2020 Chevrolet Trucks Traverse, it serves the 18-inch wheel applications and should not be treated as interchangeable with the 20-inch fitment simply because the overall diameter is similar. The size points to a different wheel package, not just a different sidewall shape. This is the correct starting point when the vehicle has 18-inch wheels or a sub-model commonly equipped with that rim diameter.
Sub-model fitment matters on the 2020 Chevrolet Trucks Traverse because tire size changes with wheel package and trim. Some versions use one dedicated size, while LS and LT can appear with either 18-inch or 20-inch fitment, so the exact sub-model and actual wheel diameter should be confirmed before replacement.
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2020 Chevrolet Trucks Traverse High Country
The 2020 Chevrolet Trucks Traverse High Country uses the 255/55R20 radial size. Tire selection starts with keeping the 20-inch wheel fitment intact and choosing a replacement built for that metric radial application.
The 2020 Chevrolet Trucks Traverse L uses the 255/65R18 radial size. That keeps tire selection straightforward, with the main focus on matching the 18-inch wheel setup and confirming the vehicle has not been changed from stock wheel diameter.
The 2020 Chevrolet Trucks Traverse LS can use either 255/65R18 or 255/55R20, depending on the wheel configuration. Replacement choice depends on checking the actual wheel diameter on the vehicle rather than assuming every LS uses the same tire size.
The 2020 Chevrolet Trucks Traverse LT also appears with either 255/65R18 or 255/55R20 radial fitment. That makes wheel confirmation especially important before ordering, since the correct tire is tied directly to whether the Traverse has 18-inch or 20-inch rims.
The 2020 Chevrolet Trucks Traverse Premier uses the 255/55R20 radial size. For replacement, the important point is staying with the proper 20-inch metric fitment and checking that the wheels on the vehicle still match that configuration.
2020 Chevrolet Trucks Traverse Premier Redline Edition
The 2020 Chevrolet Trucks Traverse Premier Redline Edition uses the 255/55R20 radial size. Tire choice centers on the 20-inch wheel package, so owners should confirm the current wheels before comparing replacement options.
The 2020 Chevrolet Trucks Traverse RS uses the 255/55R20 radial size. That makes the size decision simple, with attention shifting to proper 20-inch fitment, overall condition of the wheels, and any changes made since the vehicle left its original configuration.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Frequently Asked Questions
Common 2020 Chevrolet Trucks Traverse tire questions usually come down to the correct size for the exact sub-model, whether the vehicle has 18-inch or 20-inch wheels, and what to inspect before putting replacement tires into regular road use.
Tire Size & Fitment
What tire size fits a 2020 Chevrolet Trucks Traverse?
The 2020 Chevrolet Trucks Traverse uses two primary tire sizes: 255/65R18 and 255/55R20. Both are radial metric sizes, and the correct one depends on the sub-model and wheel package rather than the model name alone.
High Country, Premier, Premier Redline Edition, and RS use 255/55R20, while L uses 255/65R18. LS and LT can use either size, so the most important next step is checking the actual wheel diameter on the vehicle. Matching the tire to the installed rim is essential, even though the two sizes are very close in overall height.
What size rim does a 2020 Chevrolet Trucks Traverse use?
A 2020 Chevrolet Trucks Traverse uses either an 18-inch or 20-inch rim, depending on sub-model and wheel configuration. The 255/65R18 tire mounts on an 18-inch rim, while the 255/55R20 tire mounts on a 20-inch rim.
Wheel diameter should be confirmed before choosing replacement tires, especially on LS and LT models that can appear with either fitment. Looking only at trim level is not always enough if the Traverse has had wheel changes at some point. The rim diameter stamped on the tire sidewall and the current wheel itself should agree before a new tire is selected.
Why does the 2020 Chevrolet Trucks Traverse have more than one tire size?
The 2020 Chevrolet Trucks Traverse has more than one tire size because different sub-models and wheel packages use different rim diameters. One setup uses 255/65R18 on an 18-inch wheel, and the other uses 255/55R20 on a 20-inch wheel.
That does not mean both sizes apply to every Traverse. It means the correct replacement depends on how the vehicle is equipped right now. Since LS and LT can be found with either size, owners should confirm the actual wheel diameter and current tire markings before replacement, especially if the vehicle was purchased used or has aftermarket wheels.
Choosing the Right Tire
What should I consider when choosing a 2020 Chevrolet Trucks Traverse tire?
Start with the exact tire size already tied to the vehicle's wheel setup: either 255/65R18 or 255/55R20. Both are radial metric sizes, so the core decision is not construction type but selecting the correct size for the installed 18-inch or 20-inch rim.
After size is confirmed, compare replacement tires by intended use, load suitability, tread design, and how the Traverse is driven. A daily commuter, long-distance family vehicle, and lightly used secondary vehicle may all point toward different priorities. Wheel condition, suspension condition, and any previous modifications should also be checked before settling on a specific replacement.
How do I choose between the available 255/55R20 and 255/65R18 tires for a 2020 Chevrolet Trucks Traverse?
Choosing between 255/55R20 and 255/65R18 is not a matter of preference alone, because each size belongs to a different wheel diameter. The correct choice depends first on whether the 2020 Chevrolet Trucks Traverse is running 20-inch or 18-inch wheels.
Once the size is confirmed, compare tires within that size based on the vehicle's use and the owner's priorities for road manners, seasonal conditions, and replacement consistency across all four corners. It also helps to check whether the Traverse still has its original wheel package. A used vehicle may carry a different setup than the trim name alone would suggest.
What rim-fitment details should I compare when choosing 2020 Chevrolet Trucks Traverse tires?
The main rim-fitment detail on a 2020 Chevrolet Trucks Traverse is wheel diameter, since the vehicle uses either 18-inch or 20-inch applications. A 255/65R18 tire is built for an 18-inch wheel, while a 255/55R20 tire is built for a 20-inch wheel.
Beyond diameter, inspect the actual wheel condition and confirm that any replacement tire matches the current setup on the vehicle. That is especially important if the Traverse has aftermarket wheels, a previous trim-package swap, or mixed replacement history. Tire size stamped on the current sidewall, wheel markings, and the exact sub-model together provide the clearest path to the proper fitment.
Restoration & Appearance
Does correct tire fitment matter for a 2020 Chevrolet Trucks Traverse restoration or refresh?
Correct tire fitment still matters on a 2020 Chevrolet Trucks Traverse, even though it is a modern vehicle rather than a vintage restoration subject. Using the proper 255/65R18 or 255/55R20 size helps preserve the intended relationship between wheel diameter, sidewall profile, and overall stance.
For an owner refreshing the vehicle's appearance, the best starting point is confirming the trim and actual wheel package before replacing tires. That keeps the Traverse looking consistent with its current configuration instead of mixing sizes meant for different setups. If appearance accuracy is especially important, compare the vehicle against original sales literature or model-specific reference material.
How does tire size affect the appearance of a 2020 Chevrolet Trucks Traverse?
Tire size has a noticeable effect on how a 2020 Chevrolet Trucks Traverse looks because the two primary fitments pair the same basic overall height with different wheel diameters. The 255/65R18 setup carries more sidewall, while the 255/55R20 setup visually emphasizes the larger wheel.
That difference matters when keeping the vehicle aligned with its trim-specific presentation. A Traverse equipped for 20-inch tires can look out of character on the 18-inch fitment, and the reverse is also true. Owners who want the vehicle to retain its intended appearance should match the replacement tire to the wheel package actually on the vehicle rather than choosing by size preference alone.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2020 Chevrolet Trucks Traverse?
Yes, modifications can affect tire fitment on a 2020 Chevrolet Trucks Traverse. Wheel changes, suspension alterations, ride-height changes, and previous trim-package swaps can all change which tire size belongs on the vehicle and how much clearance is available.
That is why a used Traverse should be checked in person before replacement, even when the trim level suggests a likely size. The owner should confirm actual wheel diameter, inspect for rubbing marks, and look at the current tire sidewall before choosing between 255/65R18 and 255/55R20. Steering clearance and fender clearance are both worth checking if the vehicle has been modified.
What should I inspect before driving a 2020 Chevrolet Trucks Traverse on new tires?
Before regular road use, inspect the wheel condition, verify the tire size matches the installed rim, and make sure all four tires are appropriate for the vehicle's setup. The 2020 Chevrolet Trucks Traverse should also be checked for proper inflation, secure valve stems, and any obvious alignment or suspension issues.
A short visual check after installation can prevent larger problems. Look for uneven seating at the bead, confirm there is no contact with suspension or bodywork at full steering lock, and monitor air pressure after the first drives. Any vibration, pull, or unusual wear pattern deserves attention early, especially on a Traverse that has had wheel or suspension changes.
How often should tires on a 2020 Chevrolet Trucks Traverse be inspected?
Tires on a 2020 Chevrolet Trucks Traverse should be inspected regularly rather than only when tread looks worn. Pressure loss, sidewall damage, punctures, uneven wear, and age-related deterioration can all develop before the need for replacement becomes obvious from a distance.
A good routine includes checking inflation visually and with a gauge, looking over tread and sidewalls, and paying attention to how the Traverse feels on the road. Vehicles that sit for longer periods still need inspection because low use does not prevent air loss or aging. More frequent checks make sense before highway travel or after striking potholes, curbs, or road debris.
