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RAM 3500 Recall 21V439: Engine May Not Warn of Low Oil, Risking Fire

NHTSA campaign 21V439, reported June 10, 2021, 32,002 vehicles potentially affected.

What this recall means for you

Certain 2019-2020 Ram 3500, 4500, and 5500 cab chassis trucks with the Cummins 6.7L High Output engine have engine calibration software that may fail to warn the driver when oil volume is low. Running an engine with low oil can damage it, causing an oil leak or a punctured engine block, which increases the risk of a fire.

If you own one of these vehicles, contact an authorized Ram dealer. The dealer will update the engine calibration software at no cost to you. Owner notification letters were mailed June 25, 2021. You can also call FCA US LLC customer service at 1-800-853-1403 and reference recall number Y21.

Check your vehicle identification number (VIN) for open recalls to confirm whether this recall applies to your truck, and do not wait to schedule the repair if it does.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 21V439Chrysler (FCA US, LLC)
Component
ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION
Problem
Chrysler (FCA US, LLC) is recalling certain 2019-2020 Ram 3500, 4500, and 5500 cab chassis vehicles equipped with a Cummins 6.7L High Output engine. The engine calibration software may not warn about low oil volume.
Risk
Low oil can damage the engine, causing an oil leak or a punctured engine block, increasing the risk of a fire.
Remedy
Dealers will update the engine calibration software, free of charge. Owner notification letters were mailed June 25, 2021. Owners may contact FCA US LLC customer service at 1-800-853-1403. FCA US LLC's number for this recall is Y21.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Affected vehicles

RAM 350020192020
RAM 450020192020
RAM 550020192020