NHTSA service bulletin

NHTSA Service Bulletin 11005322: 2023 Jeep Grand Wagoneer

Official manufacturer communication context for 2023 Jeep Grand Wagoneer, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11005322 summary graphic for 2023 Jeep Grand Wagoneer
11005322NHTSA document ID
Manufacturer communicationcommunication type
2affected product rows
2source rows grouped

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 must exhibit/set the following Diagnostic Trouble Code (DTC):** **P018B - Fuel Pressure Sensor ""B"" Circuit Range/Performance.** Customer may also experience one or more of the following: **Undesirable vehicle drivability behavior causing the a Shift to Park event during Engine Stop Start (ESS) while Adaptive Cruise Control (ACC) is active. Pressing ACC button while ESS active can shift the vehicle to park. Idle speed oscillations observed when in Snow and Mud modes. Poor engine performance (undershoots engine speed) for ESS and for non-ESS engine start. Screen two incorrectly pops up on the Instrument Cluster Panel (IPC) for 5 seconds during Terrain and Rock mode.** Poor or reduced air conditioning performance during wide open throttle or heavy acceleration. This bulletin involves reprogramming the PCM 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
JeepGrand Wagoneer2023Ask for service records and run the exact VIN before purchase.
JeepWagoneer2023Ask 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 11005322?

"Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC):** **P018B - Fuel Pressure Sensor ""B"" Circuit Range/Performance.** Customer may also experience one or more of the following: **Undesirable vehicle drivability behavior causing the a Shift to Park event during.

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.

Get Full Report