2024 Jeep Wrangler MIL with DTC P0607-00 / P0C78-00 TSB
Owners of the 2024 Jeep Wrangler may encounter a Malfunction Indicator Lamp (MIL) illumination on their dashboard. This issue is often accompanied by Diagnostic Trouble Codes (DTCs) P0607-00 (ECU Internal Performance) or P0C78-00 (Hybrid/EV Battery System Precharge Time Too Long). A software…
Owners of the 2024 Jeep Wrangler may experience an illuminated Malfunction Indicator Lamp (MIL) on their dashboard. This condition indicates a potential issue within the vehicle's systems. This article details a manufacturer communication, TSB 10248942, that addresses specific diagnostic trouble codes associated with this warning light.
Symptoms
The primary symptom reported by owners is the illumination of the "Malfunction Indicator Lamp (MIL) illumination" on the instrument cluster. This warning light signals that the vehicle's onboard diagnostic system has detected a fault.
Fault Codes / DTCs
Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the vehicle's system:
| Code | Description |
|---|---|
| P0607-00 | ECU Internal Performance |
| P0C78-00 | Hybrid/EV Battery System Precharge Time Too Long |
These codes point to issues within the vehicle's electronic control unit or the hybrid/EV battery system's precharge function, leading to the 2024 Jeep Wrangler MIL P0607-00 issue.
Diagnosis
When the "Malfunction Indicator Lamp (MIL) illumination" occurs, a diagnostic scan will reveal the presence of DTC P0607-00 or P0C78-00. These codes indicate that the Battery Pack Control Module (BPCM) may require an update to correct internal performance or precharge timing issues.
Repair Procedure Summary
The resolution for these specific DTCs and the illuminated MIL involves updating the Battery Pack Control Module (BPCM) with the latest available software. This software update, outlined in TSB 10248942, is designed to optimize the BPCM's performance and correct the conditions that trigger the fault codes.
Owner Action
If you own a 2024 Jeep Wrangler and are experiencing a "Malfunction Indicator Lamp (MIL) illumination" or suspect issues related to DTC P0607-00 or P0C78-00, it is recommended to schedule an appointment with an authorized Jeep service center. The dealership technicians can perform a diagnostic scan to confirm the presence of these codes and apply the necessary BPCM software update. This update is typically covered under warranty.
Source: NHTSA ID: 10248942
Frequently Asked Questions
- What does a Malfunction Indicator Lamp (MIL) mean in my 2024 Jeep Wrangler?
- A Malfunction Indicator Lamp (MIL) illumination in your 2024 Jeep Wrangler indicates that the vehicle's diagnostic system has detected a fault. It often accompanies specific Diagnostic Trouble Codes (DTCs) like P0607-00 or P0C78-00, which point to issues with the Battery Pack Control Module (BPCM).
- What are DTC P0607-00 and P0C78-00?
- DTC P0607-00 signifies an "ECU Internal Performance" issue, while DTC P0C78-00 indicates a "Hybrid/EV Battery System Precharge Time Too Long." Both codes are related to the Battery Pack Control Module (BPCM) and can trigger the Malfunction Indicator Lamp (MIL) in a 2024 Jeep Wrangler.
- How is the 2024 Jeep Wrangler MIL P0607-00 issue resolved?
- The issue leading to the 2024 Jeep Wrangler MIL P0607-00 or P0C78-00 is resolved by updating the Battery Pack Control Module (BPCM) with the latest available software. This procedure is performed by a dealership technician as per manufacturer communication TSB 10248942.
- Should I be concerned if my 2024 Jeep Wrangler has a MIL light on?
- While not always an immediate safety hazard, an illuminated MIL light should be addressed promptly. It indicates a system malfunction that could affect vehicle performance or lead to more significant issues if left uncorrected. Contact your dealership to have the vehicle diagnosed and repaired.
What Jeep Wrangler owners report
Counted from the records in our database across 41 model years.
- 18,838
- Owner complaints
- 104
- Recalls
- 2,758
- Service bulletins
- 572
- Crashes reported
- 552
- Fires reported
- 435
- Injuries reported
The 2024 model year
970 complaints, the 4th most of 41 model years on file. Owners reported 14 crashes, 13 fires and 7 injuries for this year, which also has 14 recalls on file.
Exterior Lighting, the system this article covers, accounts for 225 of 18,838 complaints (1%), including 5 for 2024.
Complaints by model year
| 2006 | 730 | |
|---|---|---|
| 2007 | 1,750 | |
| 2008 | 1,904 | |
| 2010 | 686 | |
| 2012 | 836 | |
| 2014 | 658 | |
| 2018 | 1,827 | |
| 2019 | 747 | |
| 2021 | 963 | |
| 2024 | 970 |
Most-reported systems
- Steering — 3,929
- Electrical System — 3,613
- Power Train — 2,470
- Engine — 2,406
- Fuel System — 2,015
Latest recalls for the 2024 model year
- 26V363000 — Steering (Jun 2026) — Park outside
- 26V327000 — Back Over Prevention (May 2026)
- 25V766000 — Engine (Nov 2025)
Recent owner reports about exterior lighting
The contact owns a 2024 Jeep Wrangler. The contact stated that the side marker lights do not function when connected to the Recreational Vehicle he towed.
Read owner complaints →The Daytime Running Light feature has never worked even with the feature turned on in the settings.
Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.
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