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Service bulletin S1805000006 REV.B

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11025508
Published by NHTSA2025-11-13
Manufacturer's numberS1805000006 REV.B
Manufacturer's date2025-11-03
NHTSA componentSERVICE BRAKES

NHTSA's summary

ESC Light Illuminated. DTC C1252-92 VACUUM PUMP CONTROL CIRCUIT And Or P258B ELECTRONIC VACUUM PUMP PERFORMANCE

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes

Trouble codes named

C1252, P258B

Vehicles listed
JEEP CHEROKEE2019, 2020, 2021, 2022, 2023
JEEP GLADIATOR2020, 2021, 2022, 2023, 2024, 2025, 2026
JEEP WRANGLER2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
JEEP WRANGLER 4XE2020, 2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
RAM 15002019, 2020, 2021, 2022, 2023, 2024, 2025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20245032024-09-05. Brakes
24V6530002024-09-05. ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
20211562021-03-16. Brakes
21V0370002021-02-01. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
20190502019-02-06. Brakes
19V0670002019-02-05. SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES
20184212018-08-09. Brakes
18V5230002018-08-09. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
1149112026-10-16. Service bulletin. ACTUATOR - PARK BRAKE
1149112026-10-16. Service bulletin. ACTUATOR - PARK BRAKE
05-003-262026-08-19. Service bulletin. Brake Fluid Leak At The Brake System Control Module 2 (BSCM2) The customer may comment the following: SYMPTOM: ● Drops of brake fluid are on the ground. This bulletin involves tightening two BSCM2 brake line fittings.
08-305-262026-08-06. Service bulletin. Flash: Brake System Control Module (BSCM) Updates **Customers may experience one or more of the following: SYMPTOM: ● Warning message "Selec-Speed Unavailable" appears in the Instrument Panel Cluster (IPC) when trying to enable the Selec-Speed Control (SSC) function. NOTE: There will be no Diagnostic Trouble Codes (DTCs) and no driveability concerns with this symptom.** ● Anti-Lock Brake System (ABS), Electronic Stability Control (ESC) and 'Decel ACC' lights on in the IPC. Technicians may also find the following: ● DTC C121A-00 - Steering Angle Sensor Not Initialized - Is stored with no Malfunction Indicator Lamp (MIL). This bulletin involves reprogramming the BSCM with the latest available software.
56D Combo2026-07-23. Service campaign. Customer Satisfaction Notification 56D – Antilock Brake System Control Module Software - Dealer Notification
08-269-262026-07-18. Service bulletin. R1L/R1H Trailer Brake Setting In Radio Cannot Be Changed Customers may experience the following: SYMPTOM: ● Trailer brake setting in radio cannot be changed.
1131232026-07-08. Service bulletin. SPRING KIT - DISC BRAKE PAD
08-237-262026-06-18. Service bulletin. Flash: Brake System Control Module (BSCM) Update Customers may comment on the following: ● Anti-Lock Brake System (ABS), Electronic Stability Control (ESC), 'Decel ACC' lights on in Instrument Panel Cluster (IPC). Technicians may find the following: ● Diagnostic Trouble Code (DTC) "C121A-00 - Steering Angle Sensor Not Initialized" is stored with no Malfunction Indicator Lamp (MIL) illuminated This bulletin involves reprogramming the BSCM with the latest available software.
S26050000022026-03-13. Service bulletin. Whoosh Or Click Noise Heard From Brake Assembly eBooster When Pressing Brake Pedal And After A Recent Repair.
03D Campaign2026-03-05. Other. Fleet Campaign Parts Ordering Process (03D)