2024-2025 Jeep, Ram, Dodge TPMS Sensor Handling Best Practices

Stellantis has released STAR Online Publication S2522000001, a comprehensive guide detailing best practices for handling and installing Tire Pressure Monitoring System (TPMS) sensors. This document, applicable to various 2024-2025 Jeep, Ram, and Dodge models, including the Jeep Wrangler TPMS sensor handling, aims to prevent damage to these critical components during tire service procedures.

Proper Jeep Wrangler TPMS sensor handling and installation are crucial for maintaining the accuracy and functionality of the vehicle's tire pressure monitoring system. This publication serves as a reference for technicians, emphasizing careful techniques to avoid costly sensor damage.

Why These Best Practices Matter

TPMS sensors are delicate electronic components integrated into the wheel assembly. Incorrect procedures during tire dismounting or mounting can easily lead to sensor damage, resulting in system malfunctions, warning lights, and potential safety concerns. Following these guidelines helps ensure the longevity and reliability of the TPMS.

Key Procedures for TPMS Sensor Protection

This publication provides detailed steps across several stages of tire service to safeguard TPMS sensors.

Tire Dismounting for Sensor Protection

To protect the sensor during tire dismounting, technicians should first add a white mark to the sensor valve. This mark helps determine if rotation occurs. When removing the tire, it's essential to follow the tire changer manufacturer's instructions while paying special attention to the TPMS sensor. The bead breaker should be avoided in the area surrounding the sensor for both upper and lower beads. After the bead is broken, lubricant should be applied to both wheel flanges to minimize the risk of sensor damage. Finally, the mounting/dismounting tool should be inserted carefully within ±10° of the valve stem position for safe removal of both upper and lower beads.

Initial Inspection and Sensor Removal

Before removal, technicians must inspect the sensor and valve. This includes checking that the white mark remains in its original position, inspecting the sensor housing and potting for cracks or wear, and examining the valve for stress marks or aging. If any damage is found, the sensor or valve should not be reused. The sensor's position and condition must be documented prior to removal.

For sensor and valve removal, the sensor enclosure should be removed before the valve itself. A valve anti-rotation pin, if available, can stabilize the valve while loosening the screw. Minimal force should be used to avoid damaging the sensor housing. The sensor enclosure is then carefully pulled off the valve, and the valve pushed downward to release it from the rim.

Important Considerations: If any damage is found or created during this process, the Tire Pressure sensor or valve must not be reused. If tire sealant is detected, the sensor should be cleaned with a damp cloth, and the rim and valve hole thoroughly cleaned before reinstalling any sensor or valve.

New Sensor Preparation and Installation

Before installing a new sensor, verify part compatibility. Technicians should not use valves older than 12 months (check the WWYY date code) and must always install a new screw and valve. Proper sensor alignment is critical: ensure the rim hole and sealing surfaces are clean, and the transmitter is horizontal and not touching the rim. The Tire Pressure sensor must be flush and concentric with the valve hole, avoiding any tilting or contact between the sensor transmitter and rim. Valve bulbs must rest fully against the rim.

Technicians must follow the orientation markings on the transmitter. Incorrect sensor positioning, as illustrated in Figure 1 and Figure 2, can lead to improper dynamic performance, even if the RKE Mopar tool communicates correctly.

Valve Seating Validation

After installation, inspect for trapped rubber or incomplete valve rib pull-through. Damaged valves or those requiring excessive force for seating should be replaced. A white mark should be added to the valve to detect rotation during tire mounting.

Tire Mounting for Sensor Protection

When mounting the tire, follow the tire changer manufacturer's instructions carefully to avoid damaging the Tire Pressure sensor. After securing the wheel, position the valve stem of the Tire Pressure sensor approximately 210° clockwise from the changer head. Then, rotate the wheel clockwise to mount the tire, applying this method for both upper and lower beads. The wheel should be placed on the changer so the Tire Pressure sensor is about 210° clockwise from the working end of the mounting/dismounting tool. This ensures the sensor is clear of the lower bead breaker area when it rises. The tool is then rotated counterclockwise to mount the tire, using this approach for both upper and lower beads.

Post Tire Mounting Checks

After mounting, several checks are necessary. Verify that the white mark on the valve remained in position. Use standard service procedures to activate and verify the Tire Pressure sensor, confirming RF response with the correct ID and pressure. If there's no response or incorrect pressure, the assembly should be flagged for rework. Inspect for valve cone damage or misalignment, replacing the valve if excessive force was needed. Finally, check the entire assembly for leaks. Figure 3 provides examples of common damage that can occur during tire dismount and sensor insertion.

Important Warnings for Owners and Technicians

• Do not reuse the Tire Pressure sensor or valve if any damage is found or created during service.
• Do not use valves older than 12 months (check the WWYY date code).
• Do not install OEM Tire Pressure sensors in unapproved wheel assemblies.
• Incorrect sensor positioning may result in communication with the RKE Mopar tool but cause improper dynamic performance.

This guide for Jeep Wrangler TPMS sensor handling and other Stellantis vehicles is crucial for preventing issues and ensuring the safety and functionality of your vehicle's TPMS.

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Source: NHTSA ID: 11022183, Case Number: S2522000001