2020-2025 Jeep Compass Alternator Pulley Failure TSB

Introduction to TSB 08-387-25

Stellantis has released Technical Service Bulletin (TSB) 08-387-25, dated December 2, 2025, to address an issue concerning alternator decoupler pulley failure in certain Jeep Compass and Jeep Meridian vehicles. This condition, often caused by an incorrectly torqued alternator pulley, can lead to significant electrical problems, including the battery not charging and the vehicle failing to start. This TSB provides a detailed repair procedure to resolve the Jeep Compass alternator pulley failure.

Important Note for US Owners

It is crucial for owners to understand that Technical Service Bulletin (TSB) 08-387-25, which addresses the Jeep Compass alternator pulley failure, applies exclusively to vehicles sold in the Australia and Japan markets. This bulletin does not apply to vehicles in the North American (NA) market or other regions. If you are in the US and experiencing similar symptoms, consult your local dealership for diagnosis specific to your region.

Symptoms of Alternator Pulley Failure

Owners of affected Jeep Compass and Meridian vehicles may experience one or more of the following issues related to an alternator decoupler pulley failure:

• The alternator pulley may spin freely due to a decoupler failure.
• The vehicle will not start due to a depleted battery, as the alternator may not be charging it.
• A "Battery symbol displayed in the Instrument Panel Cluster (IPC)" may illuminate.
• A "Noise head from the alternator" may be heard, indicating mechanical stress or failure.

These symptoms collectively point to a critical issue where the alternator is unable to effectively charge the vehicle's battery.

Cause of the Issue

The root cause of this Jeep Compass alternator pulley failure has been identified as an incorrectly torqued alternator pulley. Improper torque during assembly can lead to premature wear and failure of the decoupler mechanism within the pulley, compromising its function.

Critical Warnings and Recommendations

Stellantis provides important guidance for technicians performing this repair:

• This repair procedure specifically covers pulley replacement only. The entire alternator should not be replaced unless it is determined to be defective after thorough diagnosis.
• When pulley replacement is necessary, it is strongly recommended to always replace the alternator pulley with the new OAP (Overrunning Alternator Pulley) P/N 68677871AA, along with a new serpentine belt P/N 68672638AA and a new pulley cap P/N 68746952AA together. Replacing all three components ensures a complete and lasting repair.

Repair Procedure Overview

To address the alternator decoupler pulley failure, TSB 08-387-25 outlines a procedure focused on replacing the faulty components. The diagnosis involves confirming the customer's reported symptoms. The repair process, detailed under Labor Operation Number 08-05-01-Y9, involves removing and replacing the alternator pulley, serpentine belt, and pulley cap. Technicians should refer to the comprehensive service procedures available in the DealerCONNECT/Service Library under the path: 'Service Info > 08 - Electrical / 8F - Engine Systems / Charging / Generator / Removal and Installation'. This task is categorized under Skill Category '6 - Electrical and Body Systems' and is estimated to take 1.9 hours of labor.

Required Parts

To perform the repair for the Jeep Compass alternator pulley failure, the following parts are required:

Warranty and Claims Information

The repair described in TSB 08-387-25 is reimbursable within the provisions of the vehicle's warranty. The specific claims data for this service action includes Labor Operation Number 08-05-01-Y9, with a Labor Description of 'Cap, Alternator Pulley and Belt - Replace (1 - Semi-Skilled)'. The designated Failure Code for this issue is 'ZZ', indicating a service action. Owners should consult their authorized dealership for specific warranty coverage details and to initiate the repair process.

Source: NHTSA ID: 11026541