2022 Jeep Compass IPC Auto-Dimming TSB 08-233-24

Symptoms

Owners of the 2022 Jeep Compass may observe specific issues with their vehicle's Instrument Panel Cluster. The primary symptom is that "The Instrument Panel Cluster (IPC) auto-dimming does not work correctly." This means the display fails to adjust its brightness appropriately for ambient light conditions. Consequently, the "ICP stays in night mode when vehicle is in direct sunlight," making it difficult to read in bright conditions.

Cause

The root cause of the Jeep Compass IPC auto-dimming malfunction is identified as an issue within the Body Control Module (BCM) software. An outdated or faulty BCM software version prevents the IPC from correctly sensing and responding to changes in light, leading to the auto-dimming failure.

Important Warnings for Owners and Technicians

This Technical Service Bulletin includes several critical warnings, especially for PHEV/MHEV (Plug-in Hybrid Electric Vehicle/Mild Hybrid Electric Vehicle) models, to ensure safety during the repair process:

• High Voltage Safety: For PHEV/MHEV vehicles, it is essential to make the vehicle safe before performing any software reprogramming. This involves disconnecting the power supply of the high-voltage system to prevent contact with live high voltage components. Only specifically trained and qualified technicians are authorized to work on high-voltage systems.
• Charging During Update: PHEV/MHEV vehicles must not be connected to a high-voltage charger while performing software updates.
• Battery Voltage Stability: During the flash process, a battery charger must be installed to maintain the battery voltage between 13.2 and 13.5 volts. The charging voltage should not drop below 13.2 volts or climb above 13.5 volts.
• Interrupted Flash: If the software flash process is interrupted or aborted for any reason, it must be restarted from the beginning.

Diagnosis

To diagnose the Jeep Compass IPC auto-dimming issue, technicians should use a Scan Tool, specifically wiTECH, along with the diagnostic procedures available in DealerCONNECT/Service Library. The diagnostic process involves verifying that all related systems are functioning as designed. If any Diagnostic Trouble Codes (DTCs) or other symptom conditions are present beyond the IPC auto-dimming issue, they should be recorded and addressed before proceeding with the BCM software update.

Repair Procedure Summary

The repair for the Jeep Compass IPC auto-dimming problem involves updating the Body Control Module (BCM) with the latest available software. The procedure, outlined in TSB 08-233-24, includes several steps:

1. Vehicle Type Check: Determine if the vehicle is a PHEV/MHEV model.
2. HV Battery Contactor Management (PHEV/MHEV only): If the vehicle is a PHEV/MHEV, technicians must first disable the HV Battery Contactors using the wiTECH tool's Misc Functions tab. After disabling, they must confirm the contactors are open and wait five minutes before proceeding.
3. BCM Reprogramming: The Body Control Module (BCM) is then reprogrammed using the wiTECH Diagnostic Application to install the latest software. If any issues arise during this process, a ticket should be submitted to the Helpdesk.
4. HV Battery Contactor Re-enable (PHEV/MHEV only): For PHEV/MHEV vehicles, the HV Battery Contactors must be re-enabled via the wiTECH tool after the BCM reprogramming is complete.
5. DTC Clearance: Finally, all Diagnostic Trouble Codes (DTCs) that may have been set in any module during the reprogramming process must be cleared using the wiTECH application.

Required Tools or Parts

• wiTECH Diagnostic Application: This specialized scan tool is essential for both diagnosing the issue and performing the BCM software update, including managing HV Battery Contactors for PHEV/MHEV vehicles.
• Battery Charger: Required to maintain stable battery voltage (13.2-13.5 volts) throughout the software flash process.

Warranty Information

This repair, identified by Labor Operation No. 18-19-02-9Q for BCM reprogramming (0.4 hours) and 18-19-87-53 for wiTECH Routine to Disable/Enable HV Battery Contactors (0.2 hours), is reimbursable within the provisions of the vehicle's warranty. The failure code to be used by dealers for this Technical Service Bulletin is 'CC' (Customer Concern).

NHTSA ID: 11010475