2023 GMC Sierra 1500 Tire Size, Pressure & Wheel Specs

As an ASE-certified master technician, I regularly service the latest GM trucks, and the 2023 GMC Sierra 1500 is a frequent visitor to the shop. Whether you are running a standard Pro trim or a fully-loaded Denali Ultimate, having the correct tire specifications is critical for maintaining ride quality, towing stability, and overall safety.

Here is your comprehensive guide to the tire sizes, pressures, and wheel specifications for the 2023 GMC Sierra 1500.

Quick answer

• OEM Tire Sizes: 255/70R17, 275/65R18, 275/60R20, or 275/50R22 (depending on trim and packages).
• Recommended Cold Tire Pressure: Typically 35 PSI front / 35 PSI rear (AT4 and models with specific all-terrain packages may specify 38 PSI; always check the driver’s side door jamb placard).
• Bolt Pattern: 6x139.7 mm (6x5.5").
• Wheel Sizes: 17x8", 18x8.5", 20x9", 22x9" (Offsets generally range from +24mm to +28mm).
• Load Index / Speed Rating: Varies by size, commonly 113T, 115T, 116S, or 119/116S (for LT-metric tires).
• Spare Tire Size: 255/80R17 (temporary) or matching full-size depending on the configuration.
• TPMS Frequency: 433 MHz.

Tire sizes by trim

The 2023 GMC Sierra 1500 offers a wide variety of wheel and tire combinations. Below is a breakdown of the standard and optional tire sizes by trim level:

Recommended replacement tires

When it is time to replace the factory rubber on your Sierra 1500, I recommend matching the tire type to your primary driving habits (e.g., highway commuting vs. off-roading vs. heavy towing).

1. Michelin Defender LTX M/S (Premium) An industry standard for half-ton trucks. They offer incredible tread life, a smooth highway ride, and excellent wet traction. Perfect for SLT and Denali owners who stick to the pavement.
2. BFGoodrich All-Terrain T/A KO2 (Mid-to-Premium) If you drive an AT4 or frequently hit dirt roads, the KO2 provides aggressive off-road capability without sacrificing too much highway comfort. It’s a favorite among truck enthusiasts.
3. Falken Wildpeak A/T3W (Mid-Range) A fantastic all-terrain option that performs exceptionally well in snow and rain. It offers rugged looks and durability at a slightly lower price point than the BFG.
4. Cooper Discoverer AT3 4S (Budget-Friendly/Mid-Range) A great middle-ground tire that balances daily driving comfort with light off-road traction, offering excellent value for the price.

When to inflate to max load psi

Note: The GMC Sierra 1500 is a half-ton light-duty truck, not an HD (Heavy Duty) model like the 2500HD or 3500HD. However, payload and towing still dictate tire pressure adjustments.

For everyday unladen driving, you should strictly follow the door placard (usually 35-38 PSI). However, if you are towing a heavy camper or maxing out the bed payload, you may need to increase the rear tire pressure to support the weight and reduce sidewall flex.

If your Sierra is equipped with LT-metric tires (like those on the AT4X), you can safely inflate them closer to the maximum PSI listed on the tire sidewall (often 50-65 PSI for LT Load Range C or E tires) only when carrying maximum loads. If you are running standard P-metric tires, do not exceed the max cold pressure stamped on the sidewall (typically 44 PSI). Always air back down to the placard pressure once the load is removed to prevent uneven tire wear and a harsh ride.

Lug nut torque & pattern

Proper wheel installation is a critical safety step. The 2023 GMC Sierra 1500 uses a 6-lug hub configuration:

• Bolt Pattern: 6x139.7 mm (also known as 6x5.5 inches).
• Lug Nut Torque: 140 lb-ft (190 Nm).

Always use a calibrated torque wrench and tighten the lugs in a crisscross (star) pattern. If you've just installed new wheels or tires, re-torque the lug nuts after the first 50 to 100 miles of driving.

Common tire issues for this vehicle

1. TPMS Relearn Failures: When rotating tires on newer GM trucks, the TPMS system must be reset using a specialized 433 MHz relearn tool. Without it, the dashboard will display incorrect tire pressures or a TPMS warning light.
2. Edge Wear from Alignment: Independent front suspension on half-ton trucks is sensitive to alignment changes, especially if leveling kits are installed. Outer or inner edge wear is a common sign that the toe or camber is out of specification.
3. Cupping on Aggressive Treads: Owners of the AT4 who run factory Goodyear DuraTracs or other aggressive mud-terrain tires often experience tire cupping and excessive road noise if rotations are neglected. I recommend rotating aggressive truck tires every 5,000 miles to keep the wear even.

Need new tires? Find a trusted shop on Repairius.