Cadillac CTS Quiz
In Brief

Starting the Engine

In this manual: In Brief
Introduction — 6In Brief — 59Keys, Doors, and Windows — 64Seats and Restraints — 66Storage — 15Instruments and Controls — 169Lighting — 22Infotainment System — 95Climate Controls — 10Driving and Operating — 120Vehicle Care — 170Technical Data — 7Customer Information — 48OnStar — 35
~1min read

When first starting the vehicle, the engine idle speed will be elevated to allow the catalytic converter, an emissions control device, to quickly reach operating temperature.

After approximately 20 seconds, the engine will begin to transition to its normal, quieter idle speed, which can vary depending on the temperature. This is normal operation.

Test yourself

A quick Cadillac CTS quiz: every answer comes with an explanation and a link to the manual page.