2021-2024 Jeep Compass Alternator Pulley Cap Failure TSB 08-217-25

Jeep has released Technical Service Bulletin (TSB) 08-217-25 to address an issue with the alternator pulley cap in certain 2021-2024 Jeep Compass and Meridian vehicles. This bulletin, also released as Rapid Service Update (RSU) 25-132, covers vehicles equipped with the 2.0L I4 Turbo Diesel Engine with ESS (Sales Code EBS). It's important to note that this TSB does not apply to vehicles built for the US market.

The TSB highlights that an incorrectly torqued alternator pulley can lead to various problems, including a depleted battery and unusual engine noise. Owners experiencing these issues should have their vehicle inspected by a qualified service technician.

Symptoms of Alternator Pulley Cap Failure

Owners of affected vehicles may notice one or more of the following symptoms related to a Jeep Compass alternator pulley failure:

• "Vehicle will not start due to a depleted battery."
• "Noise heard from the engine compartment."
• Multiple indicators and messages may display on the Instrument Panel Cluster (IPC) with no Diagnostic Trouble Codes (DTCs), including:
  • "Battery Symbol."
  • "Service Transmission."
  • "Check DEF System."
  • "ABS Service Required."
  • "Service Park Brake."
  • "Stop/Start Unavailable 'Service Battery'."

The Cause: Incorrectly Torqued Alternator Pulley

The root cause identified in TSB 08-217-25 is an incorrectly torqued alternator pulley. This can lead to the alternator pulley cap becoming loose or missing, which then affects the alternator's operation and the vehicle's charging system.

Diagnosis and Inspection

Service technicians will follow a specific procedure to diagnose the Jeep Compass alternator pulley failure. This involves:

1. Inspecting the alternator pulley for the presence of the pulley cap.
2. If the cap is present, starting the engine and listening for any irregular noise from the alternator.

If the cap is missing or irregular noise is detected, further action is required.

Repair Procedure Summary

For vehicles exhibiting symptoms or diagnostic findings consistent with a Jeep Compass alternator pulley failure, the repair involves:

1. Inspection: Checking if the alternator pulley cap is present.
2. Noise Check: If the cap is present, checking for irregular noise from the alternator.
3. Replacement: If the cap is missing or irregular noise is detected, the alternator pulley and serpentine belt will be replaced. Detailed service procedures are available in the DealerCONNECT/Service Library.

If the alternator itself is found to be damaged, its replacement requires additional approval.

Required Tools or Parts

Technicians performing this repair may utilize the following parts and special tools:

• Serpentine Belt: Mopar Part No. 68672638AA (EMEA 00463581360E)
• Generator Pulley: Mopar Part No. 552568640 (EMEA 00552568640E)
• Alternator Assembly: Mopar Part No. 68348758AB (EMEA 00520831740E) - Requires approval to replace.
• Diagnostic Tool: wiTECH or Equivalent
• Special Tool: Multi Tool-Removing/Refitting Alternator Pulley (Ref. No. 1870785000, Local PN 59064447)

Important Warnings

Owners should be aware that if the alternator is found to be damaged during the inspection, its replacement requires specific approval from the manufacturer. This TSB is reimbursable under warranty provisions.

Owner Action

If you own a 2021-2024 Jeep Compass or Meridian (H6 or M6 models) equipped with the 2.0L I4 Turbo Diesel Engine with ESS (Sales Code EBS) and are experiencing any of the described symptoms, it is recommended to contact your authorized Jeep dealer. They can verify if your vehicle is covered by TSB 08-217-25 and perform the necessary inspection and repair.

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Source: NHTSA ID: 11020828