Cadillac DeVille DTS
Report: Check Engine Light on Due to Faulty Catalytic Conveter
Cadillac DeVille DTS Problem
Average Mileage: 84,098 mi (58,495 mi - 130,000 mi)
Visitor, 2003 Cadillac DeVille DTS, 63,800 mi
check enigine light stays on steady. Computer code showed inefficient catalytic converter. Expensive replacement.
Check engine light on, tech referred me to Cadillac as he claimed catalytic converter needed replacement. Dealer verified and replaced under warranty (8 years/80k miles).