NHTSA campaign 18V556000 · Manufacturer campaign U88
Ram Recall 18V-556: Rear Axle may Fail Due to Insufficient Oil Level
NHTSA recall 18V556000 (Manufacturer campaign U88) was reported by Chrysler (FCA US LLC) on August 23, 2018, with 4,171 vehicles potentially affected (per NHTSA). NHTSA's record lists the Ram 1500 for model years 2018–2019. Owners were notified on September 26, 2018, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 18V556000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Ram VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 18V556000 (also written 18V-556 or 18V556)
- Filed by
- Chrysler (FCA US LLC)
- Manufacturer campaign number
- U88
- Report received
- Potentially affected
- 4,171 vehicles (per NHTSA)
- Component
- Power Train — Axle Assembly
- Owners notified
Repair completion: 88.57% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 18V556000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
Ram
All Ram recallsNHTSA's recall notice
As NHTSA's recall record states it for campaign 18V556000.
Defect description
Chrysler (FCA US LLC) is recalling certain 2018-2019 RAM 1500 trucks. The rear differential may have been insufficiently filled, possibly resulting in its failure.
Safety consequence
If the rear axle assembly fails, it can cause a loss of drive or the rear wheels may lock up. Either scenario increases the risk of a crash.
Manufacturer remedy
Chrysler will notify owners, and dealers will inspect the rear axle oil level. Rear axles with an insufficient amount of oil will be replaced, free of charge. The recall began September 26, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U88.
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.safercar.gov.
Sources
Official NHTSA notice for recall 18V556000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.