RAM · Canada · Crit
RAM 4500, 5500 +1 more: Engine
Affects RAM 4500, 5500, 3500 · 2019–2020 — about 2K vehicles.
The hazard
Issue: On certain chassis cab trucks equipped with a Cummins 6.7 L high-output engine, a software problem could cause damage to the connecting rod bearings while the engine is warming up. As a result, a connecting rod could break and cause an engine failure. If this happens, oil could leak onto hot components in the engine compartment. Note: A driver may notice abnormal engine noise if a connecting rod fails. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Additionally, an engine failure could create the risk of a fire. Corrective Actions: Fiat Chrysler Automobiles will notify owners by mail and instruct you to take your truck to a dealer to update the engine calibration software. This will add enhanced engine warm-up protection.
What to do
Contact your dealer; the remedy details were not included in the filing.