2018 Chevrolet Silverado 1500: Tire Size, Pressure & Specs
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Quick answer
- OEM tire size: 245/70R17, 265/70R17, 265/65R18, 275/55R20, or 285/45R22
- Recommended cold tire pressure (door placard): 35 psi (front/rear)
- Bolt pattern: 6x139.7
- Wheel size: 17x8.0, 18x8.5, 20x9.0, or 22x9.5
- Load index/speed rating: 111S, 115S, 112S, 111S, or 114S
- Spare tire size: 265/70R17
- TPMS frequency: 315 MHz
Tire sizes by trim
| Trim | Tire Size |
|---|---|
| Work Truck | 245/70R17 or 265/70R17 |
| LS | 245/70R17 or 265/70R17 |
| LT | 265/70R17 or 265/65R18 |
| LTZ | 265/65R18 or 275/55R20 |
| High Country | 275/55R20 or 285/45R22 |
Recommended replacement tires
- Budget: Firestone Destination LE3
- Mid-range: BFGoodrich Trail-Terrain T/A
- Premium: Michelin Defender LTX M/S2
- Off-road: Goodyear Wrangler DuraTrac
When to inflate to max load psi
When towing or hauling heavy loads, you should inflate the tires on your 2018 Chevrolet Silverado 1500 to the maximum load psi indicated on the tire's sidewall. This will ensure that the tires can support the additional weight and prevent them from overheating. However, you should not exceed the maximum load psi, as this can cause the tires to become overinflated and lead to a blowout.
Lug nut torque & pattern
- Lug nut torque: 140 lb-ft
- Lug nut pattern: Star pattern
Common tire issues for this vehicle
One of the most common tire issues for the 2018 Chevrolet Silverado 1500 is premature tire wear. This can be caused by a number of factors, including improper inflation, misalignment, and aggressive driving. To help prevent premature tire wear, it is important to check your tire pressure regularly, have your alignment checked at least once a year, and avoid aggressive driving.
Another common tire issue for the 2018 Chevrolet Silverado 1500 is tire vibration. This can be caused by a number of factors, including out-of-balance tires, bent wheels, and worn suspension components. If you are experiencing tire vibration, it is important to have your tires balanced and your wheels and suspension inspected by a qualified technician.
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More specs for the 2018 Chevrolet Silverado 1500
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
2014 Silverado 1500
2015 Silverado 1500
2016 Silverado 1500
2017 Silverado 1500
2019 Silverado 1500
2020 Silverado 1500
Maintenance & repair guides
2018 Chevrolet Silverado 1500 Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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