Cadillac SRX Quiz
Driving and Operating

Engine Heater

In this manual: Driving and Operating
Introduction — 5In Brief — 53Keys, Doors, and Windows — 58Seats and Restraints — 63Storage — 22Instruments and Controls — 126Lighting — 21Infotainment System — 106Climate Controls — 10Driving and Operating — 94Vehicle Care — 105Service and Maintenance — 8Technical Data — 7Customer Information — 25OnStar — 9
~1min read

The engine coolant heater, if available, can help in cold weather conditions at or below −18 °C for easier starting and better fuel economy during engine warm-up.

Plug in the coolant heater at least four hours before starting the vehicle. An internal thermostat in the plug end of the cord will prevent engine coolant heater operation at temperatures above −18 °C.

To Use the Engine Coolant Heater

1. Turn off the engine.
2. Open the hood and unwrap the electrical cord. The cord is located near the air cleaner.
3. Plug it into a normal, grounded 110-volt AC outlet.

4. Before starting the engine, be sure to unplug and store the cord as it was before to keep it away from moving engine parts. If you do not it could be damaged.

The length of time the heater should remain plugged in depends on several factors. Ask a dealer in the area where you will be parking the vehicle for the best advice on this.

Test yourself

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