Join Date: Nov 2016
Location: Rockville, MD, USA
Dunno about the CR-Z but on my wife's 2003 Civic Hybrid the IMA battery failed twice, at about five year intervals. Yours is approaching that range; I'd have it in for a check.
In the driveway: 2015 CR-Z (manual); 2004 Honda ST1300 (motorcycle); 1998 Toyota Tacoma V6 4WD (manual)
Gone and not forgiven: 2011 MINI Clubman (manual)