The most commonly reported issue for the 2015 Ram 1500 is transmission-related problems with the eight-speed automatic, including rough shifting, shudder, and occasional slipping. This issue appears most frequently in owner reports and reliability summaries for this model year.
Top problem area: the eight-speed automatic transmission
Owners frequently report transmission symptoms that affect daily usability. The following are the typical manifestations cited across multiple sources, including consumer guides and vehicle data aggregators:
- Rough or delayed shifts between gears, particularly when the vehicle is cold or under light load
- Shudder or hesitation during acceleration when shifting from lower gears
- Harsh downshifts or clunking noises when braking or slowing down
- Occasional transmission failure requiring service or replacement in extreme cases
In many reports, these transmission issues are noted across different trims and engine options, and some cases prompted service campaigns to update software, valve bodies, or related hardware.
Context: engine options and potential impact
The 2015 Ram 1500 offered several engines—3.6L Pentastar V6, 5.7L Hemi V8, and the 3.0L EcoDiesel—each paired with the eight-speed automatic in many configurations. While transmission problems can occur with any setup, the eight-speed unit is the common factor across models and tends to be the focus of owner-reported issues.
Other commonly reported problems (not as prevalent as the transmission issue)
Beyond transmission concerns, owners and reviewers note a mix of problems that have appeared across model years, including oil consumption in some V8 engines, infotainment glitches, and electrical/interface quirks.
These issues are less uniformly reported than transmission problems but are widely discussed among owners and reliability summaries for the 2015 Ram 1500:
- In some Hemi-equipped trucks, higher-than-normal engine oil consumption was reported, necessitating more frequent checks or top-offs
- Uconnect infotainment system glitches, including freezes, slow responsiveness, and occasional Bluetooth/connectivity problems
- A/C and electrical systems occasionally showing fault codes or requiring dashboard/trim component service
As with any used vehicle, the likelihood and severity of these issues can vary by maintenance history, mileage, and previous ownership. A thorough pre-purchase inspection can help identify existing problems or the need for recall/service campaigns.
What to look for when buying a used 2015 Ram 1500
When evaluating a 2015 Ram 1500, pay particular attention to records related to the transmission service history, any recall repairs, and recent software updates to the Uconnect system. Have a trusted mechanic test-drive, especially focusing on shifting smoothness, hesitation, and any unusual noises during gear changes. If you choose a EcoDiesel model, confirm proper DEF system maintenance and emissions-related service to avoid later issues.
Summary
The 2015 Ram 1500's most commonly reported problem centers on the eight-speed automatic transmission, with symptoms ranging from rough shifting to shudder and occasional failure. While transmission issues are the primary concern, buyers should also be aware of potential infotainment glitches, electrical quirks, and, in some engines, higher oil consumption. A careful pre-purchase inspection and reviewing maintenance/recall history can help mitigate risk when purchasing a used 2015 Ram 1500.