The 2015 refresh replaced the 5-speed automatic with a CVT, and a meaningful share of 2015–16 cars developed a vibration or judder — Honda Service Bulletin 15-046 sorts it into three modes: stopped in gear, light acceleration around 1,000–2,000 rpm, and a 40–50 mph cruise at roughly 1,800–2,200 rpm. The fix is a PCM/software update plus a fluid change, and Honda extended coverage on the emissions-related portion. Honda HCF-2 fluid only — generic CVT fluid will cause shudder on its own. (A 2012–2014 car is a different transmission entirely: the port-injected K24Z7 with a 5-speed automatic on ATF-DW1.)
Drive it from cold: sit in gear at a stop and feel for a pulse through the floor, then accelerate gently from 15 mph and hold a steady 45 mph. Any shudder that comes and goes with light throttle is the SB 15-046 pattern. Ask whether the software update and fluid service were done, and get the RO number — this is verifiable at a Honda dealer against the VIN.
Est. cost: $150–$250 HCF-2 fluid service and software update / $3,000–$5,000 CVT replacement if neglected
Source: Honda Service Bulletin 15-046 (2015–16 CR-V vibration while driving and/or stopped in gear)