2021-2024 Jeep Wrangler Rear Park Assist Warning TSB
A technical service bulletin (TSB) has been issued for 2021-2024 Jeep Wrangler vehicles regarding an issue where the Rear Park Assist Warning Chime may activate without any obstacles present. This TSB, identified as NHTSA ID 10248900, addresses the false warnings through a software update.
Also applies to
- Jeep Wrangler
- 2022–2024
Owners of 2021-2024 Jeep Wrangler vehicles might encounter an unexpected issue with their rear park assist system. This technical service bulletin (TSB), identified by NHTSA ID 10248900, addresses instances where the system triggers a warning chime even when there are no obstacles behind the vehicle. This can be a nuisance and may lead to drivers ignoring legitimate warnings.
Symptoms
The primary symptom of this issue is the activation of the "Rear Park Assist Warning Chime When Nothing is Behind the Vehicle." This means the audible alert for the rear parking assist system sounds off without any actual objects or obstructions in the vehicle's path. This false warning can occur intermittently and without a clear pattern.
Diagnosis and Trigger Conditions
This false warning condition is attributed to a software anomaly within the vehicle's electrical system, specifically impacting the Advanced Driver-Assistance Systems (ADAS) related to parking assist sensors and software. The system incorrectly interprets environmental data, leading to the erroneous chime. There are no specific driving conditions or external factors noted as consistently triggering this particular 2021 Jeep Wrangler rear park assist warning.
Repair Procedure Summary
The manufacturer's recommended repair for this condition involves a software update. This update will reprogram the module responsible for the rear park assist system, correcting the logic that leads to the false warnings. The update will ensure the system accurately detects obstacles and only chimes when necessary, resolving the 2021 Jeep Wrangler rear park assist warning.
Owner Action
If you own a 2021-2024 Jeep Wrangler and are experiencing the "Rear Park Assist Warning Chime When Nothing is Behind the Vehicle" issue, you should schedule an appointment with your authorized Jeep dealership. Inform them about the false park assist warnings and reference NHTSA Manufacturer Communication 10248900. The dealership will perform the necessary software update to rectify the problem. This repair is typically covered under warranty.
Source: NHTSA Manufacturer Communication 10248900
Frequently Asked Questions
- What is the problem with the Jeep Wrangler's rear park assist?
- Some 2021-2024 Jeep Wrangler vehicles may experience a "Rear Park Assist Warning Chime When Nothing is Behind the Vehicle." This means the parking assist system issues an audible warning even when there are no obstacles detected.
- Which Jeep Wrangler models are affected by the false park assist warning?
- This issue primarily affects 2021, 2022, 2023, and 2024 model year Jeep Wrangler vehicles. The specific details are outlined in NHTSA Manufacturer Communication 10248900.
- How can the false Rear Park Assist Warning Chime be fixed?
- The false warning chime can be fixed by a software update performed by an authorized Jeep dealership. This update addresses the underlying software issue within the ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE component.
- Is there a cost to fix the 2021 Jeep Wrangler rear park assist warning?
- Typically, software updates addressing such issues under a manufacturer communication like NHTSA ID 10248900 are covered under the vehicle's warranty, meaning there should be no cost to the owner.
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 2021 model year
963 complaints, the 5th most of 41 model years on file. Owners reported 21 crashes, 27 fires and 15 injuries for this year, which also has 17 recalls on file.
Electrical System, the system this article covers, accounts for 3,613 of 18,838 complaints (19%), including 313 for 2021.
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 2021 model year
- 26V363000 — Steering (Jun 2026) — Park outside
- 25V741000 — Electrical System (Oct 2025) — Park outside
- 24V720000 — Electrical System (Sep 2024)
Recent owner reports about electrical system
The contact owns a 2021 Jeep Wrangler 4XE. The contact stated that while driving at 75 MPH, the vehicle lost motive power rapidly and unexpectedly. The contact pulled over to the shoulder before the vehicle stalled.
Read owner complaints →After the Jeep 68C recall fix since January 2026: • Aggressive Battery Throttling & "Bogging": The updated software heavily restricts power output (often capping electric draw around 40–50%) to keep the battery cool.
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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