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Service bulletin CSR 3070

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 id10236326
Published by NHTSA2023-05-16
Manufacturer's numberCSR 3070
Manufacturer's date2023-05-11
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Altec Industries, Inc. has received notification from Fiat Chrysler Automobiles (FCA US) that a condition exists relating to motor vehicle safety, compliance, or emissions in a vehicle you possess that is equipped with Altec equipment. Certain 2021 model year (DJ) Ram 2500 Pickup, (D2) Ram 3500 Pickup, (DD) Ram 3500 Cab Chassis, (DP) Ram 4500/5500 Cab Chassis vehicles equipped with a 6.7L Cummins turbo diesel engine can experience an engine compartment fire originating from the Generation 1 solid state intake air grid heater relay. An electrical short in the relay can lead to a vehicle fire with the ignition on or off. A vehicle fire can result in an increased risk of occupant injury and/or injury to persons outside the vehicle, as well as property damage.

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

Engine

Vehicles listed
ALTEC AERIAL DEVICE2021

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