2024-2025 Jeep Wrangler/Gladiator IPC Display Flickers TSB

Owners of 2024-2025 Jeep Wrangler and Gladiator vehicles might observe their instrument panel cluster (IPC) display flickering, showing overlapping images, or having multiple warning lamps turn on and off. This issue, which can be particularly noticeable when starting the vehicle or navigating the cluster menu, is often related to voltage supply problems to the IPC. This technical service bulletin, identified as TSB S2508000068, provides guidance for technicians to diagnose and resolve these display irregularities.

Symptoms

If you own a 2024-2025 Jeep Wrangler or Gladiator, you might experience one or more of the following symptoms related to your instrument panel cluster:

• The IPC display flickers intermittently.
• Displayed images on the cluster appear to overlap.
• Multiple warning lamps illuminate and then turn off unexpectedly.

These visual disturbances indicate potential underlying electrical issues affecting the IPC's performance. If you notice your Jeep Wrangler IPC display flickers, it's important to have it inspected.

Fault Codes / DTCs

When these symptoms occur, technicians may find specific voltage-related Diagnostic Trouble Codes (DTCs) stored in the vehicle's modules. These codes pinpoint the nature of the electrical irregularity:

Code	Description
B21DD-84	System Voltage-Signal Below Allowable Range
B21DD-85	System Voltage-Signal Above Allowable Range

These DTCs indicate that the voltage supplied to the IPC is either too low or too high, leading to the observed display problems.

Diagnosis and Trigger Conditions

Technicians will begin diagnosis by measuring the voltage at the cluster's B+ feed terminal location. Improper power or ground feeds to the IPC are a common cause for these display irregularities. The presence of DTCs B21DD-84 or B21DD-85 confirms a voltage-related issue.

Repair Procedure Summary

To address the flickering instrument panel cluster and associated issues, the repair procedure outlined in TSB S2508000068 involves several steps:

1. Inspect Connections: Technicians will correct any terminal or connection issues found at the cluster connector.
2. Battery Check and Charge: The vehicle's battery will be checked, and if necessary, charged or replaced to ensure the State of Charge (SOC) is consistent and at the preferred 80% SOC.
3. IPC Replacement (If Necessary): In rare cases, if the connections and power supply are confirmed to be correct, and the display flickering condition persists, the Instrument Panel Cluster (IPC) itself will be replaced.

This systematic approach ensures that underlying electrical supply problems are resolved before considering component replacement.

Important Warnings

This communication, TSB S2508000068, serves as a record of past experiences and does not authorize warranty repairs. It does not provide definitive conclusions on the root cause of every vehicle issue. Instead, it compiles known cases related to the described symptoms. Technicians are considered the experts responsible for determining the appropriate course of action based on their assessment.

Owner Action

If your 2024-2025 Jeep Wrangler or Gladiator is experiencing a flickering instrument panel cluster, overlapping displays, or intermittent warning lights, it is recommended to schedule an appointment with an authorized Jeep service center. Inform them of the symptoms you are observing and mention the potential relevance of TSB S2508000068 and the associated DTCs B21DD-84 and B21DD-85.

NHTSA ID: 11022187