2018 Chevrolet Tahoe Tire Size & Pressure

Quick Answer

• OEM Tire Size: 265/65R18, 275/55R20
• Recommended Cold Tire Pressure (Door Placard): 32-35 PSI (front and rear, depending on trim and tire size)
• Bolt Pattern: 6x139.7mm
• Wheel Size: 18x8.5", 20x9"
• Load Index/Speed Rating: 116T (for 265/65R18), 113H (for 275/55R20)
• Spare Tire Size: Full-size spare, typically matching one of the OEM tire sizes.
• TPMS Frequency: 315 MHz

Tire Sizes by Trim

Recommended Replacement Tires

When it's time for new tires on your 2018 Chevrolet Tahoe, you have a variety of excellent options, ranging from all-season touring tires to more aggressive all-terrain choices. Here are a few popular choices across different price tiers:

• Michelin Defender LTX M/S (Premium Tier): Often considered the benchmark for SUV and light truck tires, the Defender LTX M/S offers exceptional wet and dry traction, long tread life, and a comfortable, quiet ride. Expect to pay around $250-$350 per tire, depending on size.

• Goodyear Wrangler SR-A (Mid-Range Tier): A common OEM tire, the Wrangler SR-A provides a good balance of on-road performance and light off-road capability. It's a reliable all-season option that offers decent traction in various conditions. Prices typically fall in the $200-$280 range per tire.

• Falken Wildpeak A/T3W (Value/All-Terrain Tier): If you occasionally venture off the beaten path or live in an area with unpredictable weather, the Wildpeak A/T3W is an excellent hybrid all-terrain tire. It delivers aggressive off-road traction without sacrificing too much on-road comfort. These can be found for approximately $180-$260 per tire.

• Cooper Discoverer HTP (Mid-Range Tier): The Discoverer HTP is another strong contender for Tahoe owners looking for a capable and durable highway-terrain tire. It offers good handling, a quiet ride, and reliable all-season performance. Expect prices in the $190-$270 range.

Lug Nut Torque & Pattern

The correct lug nut torque is crucial for your safety and to prevent damage to your wheels. For the 2018 Chevrolet Tahoe, the recommended lug nut torque is 140 lb-ft (190 Nm). Always use a torque wrench to ensure even and accurate tightening. The tightening pattern for the 6-lug wheel is a star pattern:

1. Start with one lug nut.
2. Move directly across to the opposite lug nut.
3. Continue in a star pattern, tightening opposing lug nuts until all are snug.
4. Go around again in the star pattern to torque each lug nut to the specified 140 lb-ft.

Common Tire Issues for This Vehicle

While the 2018 Chevrolet Tahoe is a robust vehicle, certain tire-related issues can arise:

• Uneven Wear: Due to its weight and suspension geometry, the Tahoe can be susceptible to uneven tire wear, particularly on the outer edges of the front tires if alignment is off or if tires aren't rotated regularly. Regular rotations (every 5,000-7,000 miles) and alignments are key.
• TPMS Sensor Issues: The 315 MHz TPMS sensors can occasionally malfunction, leading to false low-pressure warnings. This can be caused by battery degradation over time, damage during tire service, or simply electronic glitches. Sensor replacement usually resolves this.
• Vibration at Highway Speeds: If you experience vibrations, especially after new tires are installed, it's often due to improper tire balancing. Ensure that your tires are dynamically balanced by a reputable shop.
• Road Noise: Some more aggressive all-terrain tires, while offering great traction, can introduce increased road noise compared to the OEM highway-oriented tires. This is a trade-off to consider based on your driving needs.
• Pothole Damage: The Tahoe's larger wheel options (20-inch and 22-inch) have lower-profile tires, which can be more susceptible to sidewall damage or bent rims when encountering potholes or road debris. Being mindful of road conditions can help prevent this.

Need new tires? Find a trusted shop on Repairius.