Instruments and Controls

Anti-theft Alarm System Messages

~1min read

SERVICE THEFT DETERRENT SYSTEM

This message displays when there is a problem with the theft-deterrent system. The vehicle may or may not restart so you may want to take the vehicle to your dealer before turning off the engine. See Immobilizer Operation on page 2‑12 for more information.

Test yourself

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