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Service bulletin 08-155-26

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 id11031435
Published by NHTSA2026-04-22
Manufacturer's number08-155-26
Manufacturer's date2026-04-16
NHTSA componentFORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

NHTSA's summary

Not applicable to vehicles built for US market. Flash: Adaptive Cruise Control (ACC) Module Update **Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further SYMPTOM: investigation the technician must find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● C14A4-00 - Sensor Adjustment Required.** ● C0063-9A - Yaw Rate Sensor - Component Or System Operating Conditions. Customers may comment on one or more of the following: ● **"ACC/FCW Unavailable, Service Required" message in the Instrument Panel Cluster (IPC).** ● ABS warning lamp on in the IPC. ● ACC warning lamp on in the IPC. ● Message “Lane Assist does not work” in the IPC. ● Message “Fatigue Detection Assist” in the IPC. ● Message “Adaptive Cruise Control” in the IPC. This bulletin involves reprogramming the ACC with the latest available software.

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

Driver assistance, Adaptive cruise control

Trouble codes named

C0063, C14A4

Vehicles listed
JEEP COMPASS2024

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

Other bulletins for the same vehicles and component
08-161-262026-04-22. Service bulletin. Flash: Adaptive Cruise Control (ACC) Module Update Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● C14A4-00 - Sensor Adjustment Required. Customers may also experience the following: ● "ACC/FCW Unavailable, Service Required" message in the Instrument Panel Cluster (IPC). This bulletin involves reprogramming of the ACC module with the latest available software.
08-006-262026-01-14. Service bulletin. Adaptive Cruise Control (ACC) Radar Vertical Misalignment Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● C14A4-00 - Sensor Adjustment Required. Customers may also experience the following: ● "ACC/FCW Unavailable, Service Required" message in the Instrument Panel Cluster (IPC). NOTE: This message can appear on extreme windy conditions at speeds of 97 kph (60 mph) to 113 kph (70 mph). **This bulletin involves installing two washers to the Adaptive Cruise Control (ACC) radar bracket behind the front fascia.
S2523000022 REV.B2025-06-26. Service bulletin. C14A4-00 Sensor Adjustment Required Set In Adaptive Cruise Control Module (ACC).
S2408000114 REV.A2025-05-14. Service bulletin. " Instrument Panel Cluster (IPC) Displays Warning Lamps or Messages for Loss of Advanced Driver Assist System (ADAS)"
S2523000022 REV.A2025-04-17. Service bulletin. C14A4-00 Sensor Adjustment Required Set In Adaptive Cruise Control Module (ACC).
S25230000222025-04-01. Service bulletin. C14A4-00 Sensor Adjustment Required Set In Adaptive Cruse Control Module (ACC).
S25080000132025-02-11. Service bulletin. The Cluster Electronic Vehicle Information Center (EVIC) Displays “ACC/FCW Unavailable Service Required”, “Adaptive Cruise Control (ACC) System is Disabled”
1013722024-11-07. Service bulletin. FCA Caribbean Warranty Operations Newsletter – Volume 10, Issue 10
1013712024-11-07. Service bulletin. Warranty Operations Newsletter – Volume 10, Issue 10
S24080001142024-11-05. Service bulletin. Instrument Panel Cluster (IPC) Displays Warning Lamps or Messages for Loss of Advanced Driver Assist System (ADAS)