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Service bulletin REC18506

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 id10143913
Published by NHTSA2018-08-20
Manufacturer's numberREC18506
Manufacturer's date2018-06-05
NHTSA componentVEHICLE SPEED CONTROL

NHTSA's summary

The roll stability valve air supply line may be incorrectly routed. This condition does not affect normal brake operation. However, during a stability control oversteer event and with slippery road conditions, the parking brakes may be modulated unintentionally.

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

Throttle and cruise control

Vehicles listed
IC BUS CESB2019

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