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The 2003 Jeep Grand Cherokee has three different trim levels with two tire size options. The Limited and Overland versions are equipped with P235/65R17 tires on 17-inch rims that are 7.5 inches wide. On the other hand, the Laredo model features P225/75R16 tires on 16-inch rims that are 7 inches wide. To ensure optimal performance and fuel efficiency, maintain tire pressure between 33 to 36 PSI and conduct regular inspections for proper inflation. It is recommended to keep a high-quality tire gauge in the vehicle at all times for checking tire pressure accurately. Simply remove the valve stem cap and firmly press the gauge onto the stem to measure the tire pressure.
The 2003 Jeep Grand Cherokee should have its tires filled to 33 psi, with tire size P235/65R17. The standard wheel size for the 2003 Jeep Grand Cherokee differs depending on the model. For the base model, it typically comes with 17-inch silver aluminum wheels.