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Service bulletin CSN-N-55

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 id10054789
Published by NHTSA2014-02-26
Manufacturer's numberCSN-N-55
Manufacturer's date2013-11-01
NHTSA componentFORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

NHTSA's summary

A CALIBRATION ERROR, ON SOME VEHICLES, CAN AFFECT THE PROPER OPERATION OF FORWARD COLLISION WARNING FUNCTION, ON ADAPTIVE CRUISE CONTROL MODULE (ACCM) AND NEED TO REPROGRAMMED SOFTWARE. MODEL 2014 GRAND CHEROKEE. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Driver assistance, Adaptive cruise control

Vehicles listed
JEEP GRAND CHEROKEE2014

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

Recalls for the same vehicles and component
14V2930002014-06-04. FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

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