2006 Pontiac Grand Prix Tire Size & Pressure

The 2006 Pontiac Grand Prix tire size depends on trim: the Base takes P225/60R16 97S; the GT takes P225/55R17 95H; the GXP takes P255/45R18 99W, per the factory service manual.

Factory-Spec Tire Size
Varies by trim
  • Base: P225/60R16 97S
  • GT: P225/55R17 95H
  • GXP: P255/45R18 99W

Base

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
AllP225/60R16 97SDoor Placard

GT

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
AllP225/55R17 95HDoor Placard

GXP

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
AllP255/45R18 99WDoor Placard
AllP225/50R18 94WDoor Placard

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Frequently Asked Questions

What size tires does a 2006 Pontiac Grand Prix take?

It depends on the trim: Base uses P225/60R16 97S; GT uses P225/55R17 95H; GXP uses P255/45R18 99W.

What is the tire pressure for a 2006 Pontiac Grand Prix?

Refer to the tire pressure placard on your vehicle's driver side door jamb for exact cold inflation pressures.

What is the bolt pattern on a 2006 Pontiac Grand Prix?

Bolt pattern data is available in the factory service manual.

Other Pontiac Grand Prix Years

Other Pontiac Models