NHTSA service bulletin

NHTSA Service Bulletin 11023582: 2021-2024 Jeep Grand Cherokee

Official manufacturer communication context for 2021-2024 Jeep Grand Cherokee, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11023582 summary graphic for 2021-2024 Jeep Grand Cherokee
11023582NHTSA document ID
Manufacturer communicationcommunication type
3affected product rows
3source 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

Not applicable to vehicles built for US market. R1H Radio U40.20 USB Software Update - Korea Customers may experience one or more of the following: **T-maps navigation feature is intermittently not available due to map loading. When the navigation speed alarm margin is set and the while driving the vehicle between the speed limit and the set margin, the navigation speed alarm will sound off continuously and the user is unable to control the volume. After setting a navigation destination and then the customer is following the navigation route, the navigation system will stop operating. Navigation touch screen menu is inoperable after setting a navigation destination. The home screen widget will be black and the navigation display map will no longer show the navigation route.** WI-FI Software update pop up is being triggered in non connected vehicles. Vehicle Forward Collision Warning must have two options: OFF/ Warning + Active Braking. Temperature shows at upper left and right of center display highlights opposite side of what temperature hard switch is pressed. Affects RHD only. With key on and radio on, The radio display freezes then restarts (Rearview Camera (RVC) functions normally). Radio is taking more than one minute to start after starting the engine (RVC functions normally). System displays a blank screen in E-Hybrid tab when user switches into dark-theme mode (RVC functions normally). This bulletin involves inspecting and if required, updating the radio software level to **U40.20**. Depending on the radio's current software level the radio may need a one or two USB update

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 Cherokee2021-2024Ask for service records and run the exact VIN before purchase.
JeepGrand Cherokee 4xe2021-2024Ask for service records and run the exact VIN before purchase.
JeepGrand Cherokee L2021-2024Ask 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 11023582?

Not applicable to vehicles built for US market. R1H Radio U40.20 USB Software Update - Korea Customers may experience one or more of the following: **T-maps navigation feature is intermittently not available due to map loading. When the navigation speed alarm margin is set and the while driving the vehicle between the speed limit and the set margin, the navigation speed alarm will sound off continuously and the.

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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