NHTSA service bulletin

NHTSA Service Bulletin 11021048: 2024 Jeep Wrangler 4xe

Official manufacturer communication context for 2024 Jeep Wrangler 4xe, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11021048 summary graphic for 2024 Jeep Wrangler 4xe
11021048NHTSA document ID
Manufacturer communicationcommunication type
1affected product rows
82/100quality score

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mustexhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): **P04B5 - Fuel Fill Door Stuck Open. P1D83 - Implausible Engine Oil Temperature Signal Received.** P2450 - Fuel Tank Isolation Valve Stuck Open. P0032 - O2 Sensor 1/1 Heater Circuit High. P2097 - Downstream Fuel Trim System 1 Rich. P0171 - Fuel System 1/1 Lean. P0300 - Multiple Cylinder Misfire. P06E4 - Control Module Wake-Up Circuit Performance. B12B4 - Charge Status Indicator Module Internal. P061B - Internal Control Module Torque Calculation Performance. P0810 - Clutch Position Control Error. P2885 - Engine Disconnect Clutch Engagement Fault. Customers may also experience one or more of the following: **Decreased Fuel Efficiency. Reduced engine performance or rough idling.** "Service Hybrid System" message displays on the Instrument Panel Cluster (IPC). Wrench icon displays on the IPC. Vehicle misfires. Low speed engine stall at idle. Difficulty shifting out of 4LO. Idle creep while in 4LO with transmission in neutral. This bulletin involves reprogramming the Powertrain Control (PCM) and the Auxiliary Hybrid Control Processor (AHCP) also known as Power Inverter Module (PIM) and possibly the Transmission Control Module (TCM) with the latest available software.

What this bulletin may mean before buying

Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.

Affected products listed in this communication

MakeModelModel yearsBuyer note
JeepWrangler 4xe2024Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 11021048?

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mustexhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): **P04B5 - Fuel Fill Door Stuck Open. P1D83 - Implausible Engine Oil Temperature Signal Received.** P2450 - Fuel Tank Isolation Valve Stuck Open. P0032 - O2 Sensor 1/1 Heater Circuit High. P2097 -.

Is a service bulletin the same as a recall?

No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.

How should a used-car buyer use this bulletin?

Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.

Check the exact VIN before you buy

Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.

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