Cadillac XTS

Every model year with a verified denominator, worst first.

Model year	Per 1,000	Complaints	Most-reported part
2013	0.58	19	Electrical System 28%
2014	0.42	12	Electrical System 22%

Median across these years: 0.58 per 1,000. A model year well above its own nameplate’s median is the signal worth acting on.