Document and Entity Information	3 Months Ended
	Mar. 31, 2015	May 06, 2015
Document and Entity Information
Entity Registrant Name	TrueCar, Inc.
Entity Central Index Key	0001327318
Document Type	10-Q
Document Period End Date	Mar. 31, 2015
Entity Current Reporting Status	Yes
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		81,942,072