Northtown Automotive Buick GMC

Saved
CarBravo
Call 866-467-6047 Directions
Northtown Buick GMC — Yankton, SD

When to Replace Your Truck Tires (and How to Choose the Right Ones)

Your truck works hard — hauling, towing, and grinding through South Dakota winters. Its tires are the only thing standing between all that weight and the road.

Schedule Service New Tires Service Specials Certified Service Contact Us

At Northtown Buick GMC in Yankton, SD, the service team hears the same question almost every week: how do you actually know when it's time for new tires? The answer comes down to a handful of signs, starting with tread depth.

Key Takeaways

  • Tread depth below 2/32" — or a failed penny test — means it's time to replace your tires.
  • Tread wear isn't the only clock. Tire age and miles matter, even for tires that still look fine.
  • Uneven wear usually points to an alignment or inflation problem, not just old tires.
  • The right replacement matches your truck's load rating and size, plus the seasons you actually drive in, including winter tires for snow and ice.
  • Regular tire rotation and inspections catch small problems before they turn into a blowout — or a denied tire warranty claim.

How Do You Know When It's Time to Replace Your Truck Tires?

A handful of clear signs point to the need for new tires, and they're worth checking for every month. Here's what to look for, one at a time.

Penny test for truck tire tread depth | Northtown Buick GMC Yankton SD

Tread Depth Below 2/32"

Tread depth is the first thing to check. Most new tires start around 10/32" and are considered worn out at 2/32".

The penny test makes this easy. Insert a penny into the tread groove with Lincoln's head pointing down. If the top of his head is visible, it's time for new tires.

Cracked truck tire sidewall | Northtown Buick GMC Yankton SD

Cracks or Bulges in the Sidewall

Cracks, bulges, or blisters mean the tire's internal structure is compromised. This can happen even on tires that still have plenty of tread.

Don't wait on this one. A bulge can lead to a blowout with no warning.

Aging truck tire rubber | Northtown Buick GMC Yankton SD

Tire Age Over Six Years

Rubber breaks down over time, even on trucks that don't rack up many miles. Most manufacturers recommend replacement between six and ten years, regardless of remaining tread.

The manufacture date is stamped right on the sidewall, so it takes a minute to check.

Uneven truck tire tread wear from alignment | Northtown Buick GMC Yankton SD

Uneven Wear Across the Tread

Uneven wear usually points to an alignment issue or an inflation problem rather than normal aging.

Left unchecked, it shortens the life of the whole set. A quick inspection can catch it early.

Low tire pressure warning light on a GMC truck | Northtown Buick GMC Yankton SD

Frequent Low-Pressure Warnings

Constantly topping off air can mean a slow leak, a damaged valve stem, or a tire that's simply worn thin.

It's worth having it looked at the next time the truck comes in for tire service, rather than just adding air and moving on.

How Do You Choose the Right Replacement Tires for a Truck?

Match the new tires to the truck's size and load rating first, then pick the type that fits how it's actually driven.

How to read a truck tire size and load index | Northtown Buick GMC Yankton SD

Match the Size and Load Rating

The size code on the sidewall — something like 265/70R17 — lists the tire's width, its sidewall height as a percentage of that width, and the wheel diameter. The load index next to it shows how much weight each tire can safely carry.

Staying close to the original size and load rating keeps the speedometer accurate and the suspension working as designed.

Year-Round

All-Season Tires

A solid pick for year-round commuting and light towing. They ride comfortably and wear evenly, but they're not built for deep snow.

Pavement + Gravel

All-Terrain Tires

Better suited to a mix of pavement and gravel or light off-road work. Expect a bit more road noise and slightly lower fuel economy in exchange.

Snow + Ice

Winter Tires for Real Cold-Weather Grip

In a South Dakota winter, dedicated winter tires make the biggest difference. Their softer rubber compound stays flexible in the cold and grips ice and snow far better than an all-season tire ever will.

Truck tire rotation service | Northtown Buick GMC Yankton SD

Keep Up with Tire Rotation

Whatever is chosen, regular tire rotation every 5,000 to 7,500 miles helps the new set wear evenly and last as long as it's built to last.

Shop New Tires

Is It Dangerous to Drive on the Wrong Tires?

Yes. Mismatched or worn tires reduce traction, increase stopping distance, and put extra strain on a truck's suspension and steering components.

01

Longer Stopping Distances

Worn or wrong-for-the-season tires require more stopping distance, especially on wet or icy pavement. Running all-season tires through a hard South Dakota winter can turn an easy stop into a slide.

02

Voided Tire Warranty Coverage

Uneven wear and neglected inflation issues can complicate a tire warranty claim if the manufacturer traces the damage to a maintenance problem rather than a defect.

03

Traction and Stability Problems

Mismatched tires — different sizes, tread patterns, or even brands on the same axle — can throw off traction control and stability systems. This matters even more on 4x4 and AWD trucks.

04

Poor Grip in Snow and Ice

An all-season tire simply can't match a winter-rated tire's grip once temperatures drop, no matter how new the tread is. Catching worn or mismatched tires early, through a routine check or a quick service visit, is a lot cheaper than dealing with a blowout on the highway.

Keeping a Truck's Tires Road-Ready in Yankton

Tires aren't exciting until they're a problem, and by then it's usually urgent. Keeping an eye on tread depth, tire age, and wear patterns goes a long way toward staying safe on Yankton's roads through every season.

Northtown Buick GMC's service team can take the guesswork out of it, checking tread, alignment, and rotation intervals in one quick visit.

Noticing a crack in the sidewall, a shaky ride, or tread that's looking thin? It's an easy fix. Stop by Northtown Buick GMC in Yankton, SD, or book online to schedule tire service and get a straight answer on what the truck actually needs.

Frequently Asked Questions

How often should tires be rotated?

Most trucks benefit from a tire rotation every 5,000 to 7,500 miles, or at every other oil change.

How do I check my tread depth without a gauge?

The penny test works well: insert a penny with Lincoln's head down into the tread groove, and if the top of his head is visible, it's time for new tires.

Do I need winter tires in South Dakota?

Dedicated winter tires aren't required, but they make a real difference in traction on ice and snow compared with all-season tires once temperatures drop.

What causes uneven tire wear?

Uneven wear is usually caused by improper inflation, a worn suspension component, or a truck that needs an alignment.

Will a tire warranty cover uneven wear?

It depends. Most tire warranty coverage excludes damage caused by misalignment or inflation issues, so regular maintenance matters.

How do I know what size tires my truck needs?

The correct size is listed on the tire sidewall and on the inside of the driver's door jamb. Matching that size keeps handling and safety as intended.

Truck Tire Service in Yankton, SD
at Northtown Buick GMC

The information on this page is general tire maintenance guidance only. Always follow the tire size, load rating, inflation pressure, and rotation schedule listed in your GMC Owner's Manual and on your vehicle's Tire and Loading Information label. Tire warranty terms are set by each tire manufacturer. Service needs vary by vehicle, mileage, and driving conditions; see Northtown Automotive Buick GMC for details. Sources: northtowncars.com and official manufacturer information. Northtown Automotive Buick GMC, 3818 Broadway Ave, Yankton, SD 57078.