2022-2025 Jeep Wrangler/Gladiator Park Brake TSB 23-034-25

Important Warnings for Owners

Owners of affected vehicles should be aware of critical market applicability information regarding this Technical Service Bulletin (TSB) 23-034-25. This bulletin is explicitly not applicable to vehicles built for the US market. Instead, it specifically applies to China markets. If you are experiencing a Jeep Wrangler park brake issue in a vehicle outside of China, this particular TSB does not apply to your situation.

Symptoms

Owners of certain 2022-2025 Jeep Wrangler (JL) and 2022-2023 Jeep Gladiator (JT) vehicles may experience a specific issue with their park brake system. The primary symptom reported is that the "Park brake will not release."

Cause

The root cause identified for the park brake not releasing is the "Grip out of position." This means the handle grip on the park brake lever has shifted from its intended location, preventing proper operation of the mechanism.

Diagnosis

If a customer describes the symptom of the "Park brake will not release," technicians are instructed to proceed directly with the repair procedure outlined in Technical Service Bulletin (TSB) 23-034-25. No further diagnostic steps are required beyond confirming the customer's reported symptom.

Repair Procedure Summary

Technical Service Bulletin (TSB) 23-034-25, also identified as J23 FSAR-TSB-6374, outlines a detailed procedure to correct the park brake handle positioning. The repair involves using a specialized adhesive to re-secure the grip. The process begins with the removal of the park brake lever. Technicians are instructed to consult the detailed service procedures available in DealerCONNECT/Service Library under 'Service Info > 05 - Brakes / Parking Brake / Lever, Parking Brake / Removal' for precise guidance.

Next, the screws that secure the plastic trim panel to the parking brake lever assembly are removed, as illustrated in Figure 1 of the bulletin. Any residual glue on the shift lever handle must be thoroughly removed. This is done using a clean, lint-free cloth moistened with a 50% solution of water and alcohol. The handle is then immediately wiped dry with another lint-free cloth, as shown in Figure 2.

Once clean, Glue Aron Alpha 403X is applied to the specified bonding surfaces, also depicted in Figure 2. A crucial note advises covering the center console and surrounding areas to prevent any contact with the glue, ensuring a clean repair. The grip is then attached and installed onto the parking brake lever assembly, ensuring it is in the correct position, as demonstrated in Figure 3. Technicians must then confirm that the parking brake lever grip is properly aligned to the parking brake lever, a critical step illustrated in Figure 4.

The screws securing the plastic trim panel to the parking brake lever grip are reinstalled and tightened to a specific torque of 0.45 N·m (3.9 in. lbs.). Following this, the plastic trim panel is reinstalled and secured with its screws. Finally, the park brake lever is reinstalled into the vehicle. Technicians should again refer to the detailed service procedures in DealerCONNECT/Service Library under 'Service Info > 05 - Brakes / Parking Brake / Lever, Parking Brake / Installation' for this final step. This procedure effectively resolves the Jeep Wrangler park brake issue.

Required Tools or Parts

The primary material required for this repair is Glue Aron Alpha 403X. One bottle of this adhesive is sufficient to service approximately eight vehicles. No other special tools or parts are explicitly listed beyond standard workshop equipment.

Fault Codes

The failure code associated with this issue is ZZ.

Warranty Information and Claims Data

Repairs performed under TSB 23-034-25 are reimbursable within the provisions of the vehicle's warranty. The specific labor operation number for this repair is 05-05-01-A2, described as "Park Brake Grip - Remove, Repair and Installation (0 - Introduction)." This task falls under the skill category "6 - Electrical and Body Systems" and has an estimated labor time of 0.9 hours. Owners should consult their dealership for specific warranty coverage details and to confirm eligibility for this repair.

NHTSA ID: 11023607