2021 Jeep Grand Cherokee — Tire Size & Pressure Specs

Quick answer

• OEM tire size(s): Commonly 265/60R18 (Laredo, Limited, Trailhawk) or 265/50R20 (Overland, High Altitude, Summit); SRT/Trackhawk use 295/45ZR20
• Recommended cold tire pressure (door placard): Most non‑SRT trims 33–36 psi front/rear (commonly 33 psi). SRT/Trackhawk typically ~36 psi F/R. Always follow your driver’s door placard.
• Bolt pattern: 5x127 mm (5x5")
• Wheel size(s): 18x8 +~56 mm offset; 20x8.0 +~56 mm; SRT/Trackhawk 20x10 +~50 mm
• Load index & speed rating (typical): 18" packages LI 109–111, T–H; 20" packages LI 109–111, H–V; SRT/Trackhawk 110Y (summer performance)
• Spare tire: Usually compact temporary 18" (e.g., T145/80R18); some trims/packages include a full‑size spare; SRT/Trackhawk may use an inflator kit or compact spare if equipped
• TPMS frequency: 433 MHz

Tire sizes by trim

Notes:

• Exact placard PSI can vary slightly by tire brand and package—always default to the driver’s door placard on your Jeep.
• Offset values shown are typical for factory wheels; most OE WK2 wheels fall in the +50 to +57 mm range.

Recommended replacement tires

• Budget daily driving
  • Cooper Endeavor (18/20 in): Solid value all‑season, good treadlife and wet grip.
  • General Grabber HTS60 (18 in): Highway all‑season with durable casing, good for commuters.
• Mid‑range
  • Continental CrossContact LX25 (18/20 in): Quiet, refined ride; strong wet/snow performance for an all‑season.
  • Pirelli Scorpion Verde All Season Plus II (20 in): Common OE‑style upgrade for Overland/Summit ride quality.
• Premium
  • Michelin Defender LTX M/S (18/20 in): Top choice for longevity, comfort, and towing stability.
  • Michelin Latitude Tour HP (20 in): Premium on‑road manners for luxury‑oriented trims.
• Trailhawk/all‑terrain focus
  • Falken WildPeak A/T Trail or Goodyear Wrangler Adventure w/Kevlar (265/60R18): Tougher sidewalls, good snow traction (check 3PMSF ratings where applicable).
• SRT/Trackhawk performance
  • Pirelli P Zero or Scorpion Zero Asimmetrico (295/45ZR20): OE‑style ultra‑high‑performance fitments.
  • Continental ExtremeContact DWS 06 Plus (295/45ZR20, availability varies): All‑season UHP option for mixed climates.

Tip: Match the service description (load index/speed rating) to your door placard or higher. For towing or performance models, do not downgrade speed rating.

When to inflate to max load psi

This guidance applies to heavy‑duty trucks; the Grand Cherokee is not an HD truck. Do not use the tire’s sidewall “max” pressure for normal driving. Use the Jeep door‑placard pressures. If towing or carrying near GVWR, you may run the higher end of the placard range shown for your trim, but still stay at or below the placard value unless Jeep service information states otherwise.

Lug nut torque & pattern

• Bolt pattern: 5x127 mm (5x5")
• Hub bore: 71.5 mm
• Lug thread: M14 x 1.50
• Lug nut torque: ~110 ft‑lb (149 N·m) is typical for WK2. Re‑torque after 25–50 miles on new wheel/tire installs. Always verify with your owner’s manual or service info for your exact trim/wheel.

Common tire issues for this vehicle

• Inner shoulder wear on 20" trims: The WK2’s suspension and alignment specs can produce mild negative camber; keep rotations at 5–6k miles and ensure alignment is set to the most tire‑friendly side of spec.
• Road noise/impact harshness on 20" wheels: Low‑profile 265/50R20 and 295/45R20 tires ride firmer; consider moving to 18" wheels for more sidewall if comfort is a priority.
• Trailhawk cupping/feathering: Aggressive all‑terrain tread can cup if underinflated or if rotations are stretched. Maintain pressures near placard and rotate frequently.
• TPMS and seasonal sets: 2021 uses 433 MHz sensors. Program or relearn when adding a winter/summer set. Sensor batteries typically last 7–10 years.
• SRT/Trackhawk accelerated wear: High torque, stagger‑worthy width (295) and aggressive compounds wear quickly. Maintain 36 psi cold, frequent rotations (if square set), and precise performance alignment.

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