2024 Jeep Wrangler MIL & O2 Sensor DTCs TSB 18-065-24
This TSB 18-065-24 for the 2024 Jeep Wrangler addresses Malfunction Indicator Lamp (MIL) illumination accompanied by specific O2 sensor Diagnostic Trouble Codes (DTCs) P0032, P0038, P0052, and P0058. The fix involves a Powertrain Control Module (PCM) software update.
Owners of 2024 Jeep Wrangler vehicles equipped with the 3.6L V6 VVT Engine Upgrade 1 (Sales Code ERC) may experience a Malfunction Indicator Lamp (MIL) illumination on their dashboard. This issue is addressed by Technical Service Bulletin (TSB) 18-065-24, which has also been released as Rapid Service Update (RSU) 24-110, both issued on August 2, 2024. The primary cause for this condition is identified as Powertrain Control Module (PCM) software.
This bulletin provides a solution for the 2024 Jeep Wrangler MIL DTCs, ensuring proper vehicle performance and addressing the underlying software problem.
Symptoms
If your 2024 Jeep Wrangler is affected by this issue, you will notice the "Malfunction Indicator Lamp (MIL) illumination" on your instrument cluster. This warning light will be accompanied by one or more specific Diagnostic Trouble Codes (DTCs) related to the oxygen sensor heater circuits. These DTCs indicate a problem with the heating element of the oxygen sensors, which are crucial for emissions control and engine efficiency.
Fault Codes / DTCs
The following Diagnostic Trouble Codes (DTCs) are associated with this TSB and will typically be present when the "Malfunction Indicator Lamp (MIL) illumination" occurs:
| Code | Description |
|---|---|
| P0032 | O2 - Sensor 1/1 Heater Circuit High |
| P0038 | O2 - Sensor 1/2 Heater Circuit High |
| P0052 | O2 - Sensor 2/1 Heater Circuit High |
| P0058 | O2 - Sensor 2/2 Heater Circuit High |
Diagnosis / Trigger Conditions
The presence of the "Malfunction Indicator Lamp (MIL) illumination" along with any of the DTCs P0032, P0038, P0052, or P0058 indicates that your 2024 Jeep Wrangler is experiencing the condition described in TSB 18-065-24. The root cause has been identified as an issue with the PCM software. Technicians will use a diagnostic scan tool, such as wiTECH, to verify these codes and confirm the vehicle's eligibility for the update.
Repair Procedure Summary
The repair for the 2024 Jeep Wrangler MIL DTCs primarily involves updating the Powertrain Control Module (PCM) software. The general procedure is as follows:
- Vehicle Eligibility Check: The technician first verifies if the vehicle's VIN is listed on the Rapid Service Update (RSU) VIN list. If not, they check if the symptoms match the bulletin's description.
- Software Level Inspection: The PCM's current software level is checked. If it already has the latest software, the bulletin is considered completed.
- PCM Reprogramming: The PCM is reprogrammed with the latest available software. This step is crucial for resolving the underlying software issue.
- DTC Re-check and Diagnostics: After reprogramming, the system is checked to see if any of the original DTCs (P0032, P0052, P0058, P0038) return. If they do, further diagnostics based on published DTC procedures may be performed, which could include replacing one or more oxygen sensors.
- DTC Clearing: Finally, all Diagnostic Trouble Codes that may have been set in any module due to the reprogramming process are cleared using the wiTECH application.
Required Tools or Parts
To perform this service, technicians will require a wiTECH or Equivalent diagnostic tool for inspecting software levels, reprogramming the PCM, and clearing DTCs. In some cases, depending on further diagnostics, new oxygen sensors may be required.
Important Warnings
During the PCM reprogramming process, it is critical to ensure stable battery voltage. A battery charger must be installed to maintain the battery voltage between 13.2 and 13.5 volts. Do not allow the charging voltage to climb above 13.5 volts during the flash process. If the flash process is interrupted or aborted for any reason, it should be restarted from the beginning.
Owner Action
If your 2024 Jeep Wrangler is displaying the Malfunction Indicator Lamp (MIL) and you suspect it might be related to the O2 sensor DTCs P0032, P0038, P0052, or P0058, you should schedule an appointment with an authorized Jeep dealer. This repair, which involves a PCM software update, is reimbursable within the provisions of your vehicle's warranty. The dealer will perform the necessary diagnostics and software update to resolve the 2024 Jeep Wrangler MIL DTCs issue.
Source: NHTSA ID: 11005724
Frequently Asked Questions
- What is TSB 18-065-24 about for the 2024 Jeep Wrangler?
- TSB 18-065-24 addresses the illumination of the Malfunction Indicator Lamp (MIL) in 2024 Jeep Wrangler vehicles, specifically when accompanied by certain oxygen sensor-related Diagnostic Trouble Codes (DTCs).
- What are the common symptoms of this issue in a 2024 Jeep Wrangler?
- The primary symptom is the illumination of the 'Malfunction Indicator Lamp (MIL)' on the dashboard. This will typically occur alongside specific O2 sensor heater circuit DTCs such as P0032, P0038, P0052, or P0058.
- What Diagnostic Trouble Codes (DTCs) are associated with TSB 18-065-24?
- The DTCs associated with this TSB are P0032 ('O2 - Sensor 1/1 Heater Circuit High'), P0038 ('O2 - Sensor 1/2 Heater Circuit High'), P0052 ('O2 - Sensor 2/1 Heater Circuit High'), and P0058 ('O2 - Sensor 2/2 Heater Circuit High').
- How is the issue of 2024 Jeep Wrangler MIL DTCs resolved?
- The issue is resolved by reprogramming the Powertrain Control Module (PCM) with the latest available software. In some cases, if the DTCs persist after the software update, oxygen sensors may also need to be replaced.
- Is the repair for TSB 18-065-24 covered by warranty?
- Yes, all repairs performed under TSB 18-065-24, including the PCM software update and any necessary oxygen sensor replacements, are reimbursable within the provisions of your vehicle's warranty.
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.
Power Train, the system this article covers, accounts for 2,470 of 18,838 complaints (13%), including 200 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 power train
While driving my vehicle, I have noticed a significant decrease in power and a corresponding slowdown, particularly in traffic conditions. This has resulted in a near-miss collision with another vehicle in the rear.
Read owner complaints →My 2024 Wrangler 4xe has 27,000 miles on it. On Friday, 7/10/2026 around 7:00 in the morning the check engine light came on. I immediately called the dealer to set up an appointment and they could not get me in until 7/15/2026.
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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