2018 Jeep Grand Cherokee Laredo Tire Size

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2018 Jeep Grand Cherokee Laredo Tire Size

The 2018 Jeep Grand Cherokee Laredo is a popular SUV known for its reliability and off-road capability. One of the most crucial aspects of maintaining this vehicle, or any vehicle for that matter, is proper tire care and understanding the correct tire size. Using the wrong tire size can negatively impact performance, safety, and even fuel efficiency. This article delves into the specifics of the 2018 Grand Cherokee Laredo's tire size, common problems, and practical solutions for both car owners and mechanics.

Understanding the Correct Tire Size

The standard tire size for the 2018 Jeep Grand Cherokee Laredo is typically 245/70R17. However, it's crucial to consult your vehicle's door jamb sticker or owner's manual to confirm the exact specification for your specific vehicle trim and configuration. This information is the definitive source for the correct tire size.

Deciphering the tire size is also essential. Let's break down "245/70R17":

  • 245: Tire width in millimeters.
  • 70: Aspect ratio (sidewall height as a percentage of the tire width).
  • R: Radial construction.
  • 17: Wheel diameter in inches.

Common Tire-Related Problems and Solutions

Problem: Uneven Tire Wear

Symptoms: One tire wearing down significantly faster than the others, or wear concentrated on the inside or outside edge of the tire. This can manifest as needing to replace a tire much sooner than expected.

Causes:

  • Misalignment: This is the most common culprit. When the suspension is misaligned, the tires don't make proper contact with the road, leading to uneven wear.
  • Improper Inflation: Under-inflated or over-inflated tires wear unevenly. Under-inflation typically causes wear on the edges, while over-inflation causes wear in the center.
  • Worn Suspension Components: Worn ball joints, tie rod ends, or struts can cause instability and lead to uneven tire wear.
  • Unbalanced Tires: Unbalanced tires can cause vibrations and uneven wear, particularly at higher speeds.

Solutions:

  • Wheel Alignment: Get a professional wheel alignment. This will ensure that all wheels are properly aligned according to the manufacturer's specifications.
  • Tire Inflation Check: Regularly check and adjust tire pressure to the recommended PSI (pounds per square inch), found on the door jamb sticker or in the owner's manual. Use a reliable tire pressure gauge.
  • Suspension Inspection: Have a mechanic inspect the suspension system for worn components. Replace any worn parts as needed.
  • Tire Balancing: Have your tires balanced regularly, especially when installing new tires or after experiencing vibrations.

Example: Imagine a 2018 Jeep Grand Cherokee Laredo experiencing feathering on the inside edge of the front tires. This is a classic symptom of excessive toe-in. A four-wheel alignment will correct the toe angle and prevent further uneven wear.

Problem: Premature Tire Wear

Symptoms: Tires wearing down significantly faster than expected, even with regular maintenance.

Causes:

  • Aggressive Driving: Hard acceleration, braking, and cornering put extra stress on tires, leading to faster wear.
  • Incorrect Tire Type: Using tires that aren't suitable for the vehicle's intended use or the local climate can lead to premature wear.
  • Overloading the Vehicle: Exceeding the vehicle's weight capacity puts extra stress on the tires.
  • Lack of Tire Rotation: Failing to rotate tires regularly can lead to uneven wear patterns and shorter tire lifespan.

Solutions:

  • Modify Driving Habits: Practice smoother driving techniques to reduce stress on the tires.
  • Choose the Right Tires: Select tires that are appropriate for your driving style and the local climate. Consider factors like tread pattern, load rating, and speed rating.
  • Avoid Overloading: Adhere to the vehicle's weight capacity.
  • Regular Tire Rotation: Rotate tires every 5,000-7,000 miles, or as recommended in the owner's manual. This helps to distribute wear evenly and prolong tire life.

Example: A 2018 Jeep Grand Cherokee Laredo frequently used for towing a heavy trailer might experience premature tire wear if the tires aren't properly rated for the added load. Upgrading to tires with a higher load rating can significantly improve tire lifespan.

Problem: Tire Pressure Monitoring System (TPMS) Issues

Symptoms: TPMS warning light illuminating on the dashboard, inaccurate tire pressure readings, or failure of the TPMS to function properly.

Causes:

  • Faulty TPMS Sensor: The most common cause. TPMS sensors have a limited lifespan and may fail due to battery depletion or physical damage.
  • Low Tire Pressure: A significant drop in tire pressure will trigger the TPMS warning.
  • TPMS Sensor Malfunction: Sensor damage or electrical issues can lead to inaccurate readings.
  • Incorrect TPMS Sensor Installation: Improper installation or calibration can cause the TPMS to malfunction.

Solutions:

  • Check Tire Pressure: First, manually check the tire pressure with a gauge. If the pressure is low, inflate the tire to the correct PSI.
  • TPMS Sensor Replacement: If the TPMS sensor is faulty, it needs to be replaced. This is typically a straightforward procedure for a qualified mechanic.
  • TPMS Sensor Relearn: After replacing a TPMS sensor, the system may need to be relearned to recognize the new sensor. This can often be done using a TPMS relearn tool.
  • Professional Diagnosis: If the TPMS continues to malfunction after checking tire pressure and replacing sensors, consult a mechanic for a professional diagnosis.

Example: The TPMS light on a 2018 Jeep Grand Cherokee Laredo illuminates even after inflating all tires to the correct pressure. This likely indicates a faulty TPMS sensor that needs to be replaced and relearned.

Maintaining Your 2018 Jeep Grand Cherokee Laredo Tires

Preventative maintenance is key to extending the life of your tires and ensuring safe driving. Here are some essential tips:

  • Regular Tire Pressure Checks: Check tire pressure at least once a month and before long trips.
  • Tire Rotation: Rotate tires every 5,000-7,000 miles.
  • Wheel Alignment: Get a wheel alignment every 12 months or whenever you notice uneven tire wear.
  • Tire Balancing: Have your tires balanced when installing new tires or if you experience vibrations.
  • Visual Inspections: Regularly inspect your tires for cuts, bulges, or other damage.
  • Proper Storage: If storing tires, keep them in a cool, dry place away from direct sunlight.

Conclusion

Understanding the correct tire size for your 2018 Jeep Grand Cherokee Laredo, along with proper maintenance and troubleshooting techniques, is crucial for safety, performance, and longevity. By following the tips outlined in this article, both car owners and mechanics can ensure that the tires are in optimal condition, leading to a smoother, safer, and more enjoyable driving experience. Remember, neglecting tire maintenance can lead to costly repairs and potentially dangerous situations. Prioritize tire care to keep your Jeep Grand Cherokee Laredo running smoothly for years to come.

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