GMC Terrain: OnStar Services / Security

If equipped, OnStar provides these services:

  • With Stolen Vehicle Assistance, OnStar Advisors can use GPS to pinpoint the vehicle and help authorities quickly recover it.
  • With Remote Ignition Block, if equipped, OnStar can block the engine from being restarted.
  • With Stolen Vehicle Slowdown, if equipped, OnStar can work with law enforcement to gradually slow the vehicle down.

Theft Alarm Notification

If equipped, if the doors are locked and the vehicle alarm sounds, a notification by text, e-mail, or phone call will be sent. If the vehicle is stolen, an OnStar Advisor can work with authorities to recover the vehicle.

    Emergency

    Emergency Services require an active safety and security plan. With Automatic Crash Response, built-in sensors can automatically alert a specially trained OnStar Advisor who is immediately connected in to the vehicle to help...

    OnStar Additional Information

    In-Vehicle Audio Messages Audio messages may play important information at the following times: Prior to vehicle purchase. Press to set up an account...

    Other information:

    GMC Terrain 2018-2025 Owners Manual: Bulb Replacement


    For the proper type of replacement bulbs, or any bulb changing procedure not listed in this section, contact your dealer. Caution Do not replace incandescent bulbs with aftermarket LED replacement bulbs. This can cause damage to the vehicle electrical system...

    GMC Terrain 2018-2025 Owners Manual: Keyless Access Operation


    With the Keyless Access system, you can lock and unlock the doors and access the liftgate without removing the RKE transmitter from your pocket, purse, briefcase, etc. The RKE transmitter should be within 1m(3 ft) of the liftgate or door being opened...

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