The 2015 Chevrolet Impala represents the full-size sedan in a distinctly modern form, with a longer, lower, more refined character than earlier generations and trim levels that could move from everyday commuter duty to a more upscale appearance package. Tire choice on this Impala starts with identifying the exact wheel and sub-model setup, because 235/50R18, 245/45R19, and 245/40R20 fit different versions of the car and all are radial sizes. From there, the decision shifts toward sidewall style, tire series, and brand, with Blackwall, Redline, and raised white letter options appearing in certain sizes. The right match should respect the car's actual wheel diameter, overall look, and intended road use.
Which Tire Size Is Right for The 2015 Chevrolet Impala
The 2015 Chevrolet Impala uses three primary tire sizes, and the right one depends on the exact sub-model and wheel diameter. All three are radial fitments, but they span 18-inch, 19-inch, and 20-inch rims, so confirming the car's current wheel setup is the first step. Once that is settled, the real choice becomes selecting the right tire series, sidewall treatment, and performance-oriented product within the correct size.
235/50R18 is a modern metric radial size in which 235 identifies the nominal section width in millimeters, 50 is the aspect ratio, R denotes radial construction, and 18 is the rim diameter in inches. On the 2015 Chevrolet Impala, this size is used on 18-inch wheel applications and suits buyers who need to stay with that wheel diameter. Available choices include BFGoodrich, Nitto, and Pro-Trac, with Blackwall, Redline, and raised white letter sidewall presentations depending on the tire series. It is a useful size to evaluate when maintaining an LS setup or an LT equipped with 18-inch wheels.
245/45R19 follows the same metric radial sizing pattern, with a 245-millimeter nominal section width, a 45-series profile, radial construction, and fitment on a 19-inch rim. For the 2015 Chevrolet Impala, this size serves certain LT and LTZ configurations, making wheel confirmation especially important before selection. Product choices in this size come from BFGoodrich and Nitto, with Blackwall sidewalls across multiple g-Force and NT555 G2 series options. This size makes sense when the car already wears 19-inch wheels and the goal is to keep the existing fitment rather than move to a different rim diameter.
245/40R20 is a lower-profile modern metric radial, combining a 245-millimeter nominal section width with a 40-series aspect ratio on a 20-inch rim. On the 2015 Chevrolet Impala, it is used on 20-inch applications, particularly within the upper trim range, so it should be matched carefully to the actual wheel package on the car. Available options include BFGoodrich, Nitto, and Pro-Trac, with Blackwall, Redline, and raised white letter treatments depending on the product line. Buyers considering this size often need to balance appearance, wheel compatibility, and the driving character that comes with a shorter sidewall.
Sub-model fitment matters on the 2015 Chevrolet Impala because tire size changes with trim and wheel package. Some versions share a size, while others step up to a different rim diameter, so identifying the exact LS, LT, or LTZ configuration keeps the search focused on the right tire.
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2015 Chevrolet Impala LS
The 2015 Chevrolet Impala LS uses a single tire fitment, making selection more straightforward than on the other trims. Once the 18-inch wheel setup is confirmed, the main decision becomes choosing among available radial product lines and sidewall styles rather than sorting through multiple primary sizes.
The 2015 Chevrolet Impala LT can use either an 18-inch or 19-inch tire fitment, so the wheel diameter on the car should be verified before any tire is chosen. That distinction affects not only size selection but also which brands, tire series, and sidewall options are available.
The 2015 Chevrolet Impala LTZ uses either a 19-inch or 20-inch tire fitment depending on how the car is equipped. Tire selection here starts with confirming the actual wheel diameter, then narrowing the choice by desired sidewall presentation and the character of the available radial tire series.
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.
Best 2015 Chevrolet Impala Tires for Sale
Available 2015 Chevrolet Impala tire choices center on radial fitments from BFGoodrich, Nitto, and Pro-Trac. Depending on size, buyers can compare g-Force, NT555 G2, Phenom T/A, and Street Pro III series options, with Blackwall, Redline, and raised white letter sidewall treatments appearing in selected applications.
Owners shopping tires for a 2015 Chevrolet Impala usually need to sort out size by sub-model and wheel diameter first, then compare radial tire series, sidewall styles, and practical fitment checks before putting the car back on the road.
Tire Size & Fitment
What tire size fits a 2015 Chevrolet Impala?
The 2015 Chevrolet Impala uses three primary tire sizes: 235/50R18, 245/45R19, and 245/40R20. All three are radial fitments, and the correct size depends on the exact trim and wheel package, with LS using 235/50R18, LT using either 235/50R18 or 245/45R19, and LTZ using either 245/45R19 or 245/40R20.
The practical first step is to confirm the wheel diameter actually on the car, since the Impala spans 18-inch, 19-inch, and 20-inch applications. That matters even more on cars that may have had wheel changes over time, because picking the correct tire starts with matching the tire size to the rim already in service.
What size rim does a 2015 Chevrolet Impala use?
A 2015 Chevrolet Impala can use 18-inch, 19-inch, or 20-inch rims depending on sub-model and configuration. The 235/50R18 size fits an 18-inch rim, 245/45R19 fits a 19-inch rim, and 245/40R20 fits a 20-inch rim, so there is no single rim diameter shared across the entire model line.
Checking the car's actual wheel diameter before ordering tires is essential, especially on LT and LTZ models that can use more than one fitment. The simplest approach is to read the current tire size on the sidewall and compare it with the wheel installed, then review rim-width suitability if you are choosing between multiple tire lines.
Do all 2015 Chevrolet Impala sub-models use the same tire size?
No, the 2015 Chevrolet Impala sub-models do not all use the same tire size. LS uses 235/50R18, LT uses either 235/50R18 or 245/45R19, and LTZ uses either 245/45R19 or 245/40R20, so trim level alone does not always narrow the choice to one size.
That variation means the exact sub-model should be identified first, and the wheel on the car should still be confirmed second. LT and LTZ buyers in particular should avoid assuming a trim badge answers the fitment question by itself, because the same trim can appear with different rim diameters and therefore different tire sizes.
Choosing the Right Tire
What should I consider when choosing a 2015 Chevrolet Impala tire?
Start with the correct size for the car's sub-model and wheel diameter, since the 2015 Chevrolet Impala uses 235/50R18, 245/45R19, or 245/40R20. From there, compare tire construction, tire series, sidewall treatment, rim-width compatibility, and useful product details such as load figures or weight when those factors affect how you want the car to look and drive.
A buyer keeping the car close to its current setup may focus on staying with the same size and choosing among available radial product lines. Someone more appearance-conscious may also want to compare Blackwall against Redline or raised white letter styles where those treatments are offered in the correct fitment.
What sidewall styles are available for 2015 Chevrolet Impala tires?
Sidewall choices for the 2015 Chevrolet Impala include Blackwall, Redline, and RWL, which is a raised white letter presentation. Availability depends on tire size, with Blackwall appearing across all three primary sizes, while Redline and RWL show up in selected 18-inch and 20-inch applications through the Street Pro III line.
That makes sidewall style part of the selection process rather than just a cosmetic afterthought. Buyers who want a more understated modern look may stay with Blackwall, while those aiming for a sportier or more custom presentation can compare Redline or raised white letter options once the correct size and wheel diameter have been confirmed.
What brands offer tires for the 2015 Chevrolet Impala?
Tires for the 2015 Chevrolet Impala are available from BFGoodrich, Nitto, and Pro-Trac in the covered sizes. Depending on the exact fitment, choices include g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, NT555 G2, and Street Pro III product lines, so there is meaningful variety within the Impala's radial size range.
Brand selection should follow fitment, not replace it. After the correct tire size is confirmed, compare the available series in that size, check rim-width suitability where stated, and decide whether you want a conventional Blackwall look or a more distinctive sidewall treatment in the sizes that offer those appearance options.
Restoration & Appearance
Which tire should I choose for a period-style 2015 Chevrolet Impala?
A period-style approach on a 2015 Chevrolet Impala usually starts by keeping the car's proper wheel diameter and primary tire size rather than changing the overall fitment. Within that size, the appearance choice comes from the available radial product lines and sidewall treatments, especially in sizes that offer Redline or raised white letter options alongside more restrained Blackwall designs.
That decision depends on whether the goal is a clean late-model sedan look or a more customized presentation. Staying close to the car's existing size preserves the intended visual balance, while the sidewall treatment lets you shape the final appearance without jumping to a different tire diameter or profile unnecessarily.
How does tire construction affect the appearance of a restored 2015 Chevrolet Impala?
Tire construction is less of a visual dividing line on a 2015 Chevrolet Impala because the primary fitments are already radial. The bigger appearance differences come from sidewall style, profile, and wheel diameter, since an 18-inch, 19-inch, or 20-inch setup changes the car's stance and tire-to-wheel relationship far more than a construction choice would here.
For an appearance-minded build, the more useful comparison is Blackwall versus Redline or raised white letter within the correct size. Keeping the proper trim-specific fitment also helps the car avoid looking mismatched, especially if the goal is to retain a balanced, factory-inspired presentation rather than create a more aggressive custom look.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2015 Chevrolet Impala?
Yes, modifications can affect tire fitment on a 2015 Chevrolet Impala even when the tire size is correct for the original trim. Aftermarket wheels, altered offsets, suspension changes, or lowering can all change how much room the tire has at the fender, strut, and steering components, especially on the 19-inch and 20-inch applications.
Any Impala that has been changed from stock should be checked carefully before a new tire is selected. Wheel diameter is only the starting point, because width and clearance matter too, and the safest approach is to inspect the actual setup on the car rather than assume the original trim specification still tells the whole story.
What should I inspect before driving a 2015 Chevrolet Impala on new tires?
Before driving a 2015 Chevrolet Impala on new tires, inspect the wheels for damage, confirm the tire size matches the rim diameter, and make sure the tires are properly seated and inflated. It is also wise to check for rubbing at full steering lock, look over suspension and steering components, and verify that the car tracks evenly once the tires are installed.
A road-ready check should include watching for vibration, air loss, or any sign that the tire is contacting the body or chassis. If the Impala has different wheels than it left the factory with, a careful clearance review becomes even more important because the correct nominal size does not erase issues created by wheel width or offset changes.
How often should tires on a 2015 Chevrolet Impala be inspected?
Tires on a 2015 Chevrolet Impala should be inspected regularly, not only when replacement time arrives. Routine checks should include tread wear, cuts, sidewall cracking, bulges, and pressure loss, and those inspections matter just as much on a lightly driven car as on one that sees daily use because aging can affect tires even when mileage stays low.
A quick visual check before longer drives is a smart habit, especially on cars using lower-profile 19-inch or 20-inch fitments where impact damage can be easier to overlook. Consistent inspection also helps catch uneven wear patterns early, which can point to alignment, suspension, or inflation issues before they shorten tire life.
