GMC Terrain: Service and Maintenance / Special Application Services

GMC Terrain 2018-2026 Owners Manual / Service and Maintenance / Special Application Services

Severe Commercial Use Vehicles Only: Lubricate chassis components every oil change.
Have underbody flushing service performed. See "Underbody Maintenance" in Exterior Care.

Maintenance Schedule

Owner Checks and Services At Each Fuel Stop Check the engine oil level. See Engine Oil. Once a Month Check the tire inflation pressures. See Tire Pressure...

Additional Maintenance and Care

Your vehicle is an important investment and caring for it properly may help to avoid future costly repairs. To maintain vehicle performance, additional maintenance services may be required...

Other information:

GMC Terrain 2018-2026 Owners Manual: Exhaust Fluid Quality Poor

Use only exhaust fluid that is GM approved, or fluid containing the API certified or ISO 22241 label. All DEF has an expiration date. If the system detects poor quality, or contaminated or diluted DEF, the DIC message EXHAUST FLUID QUALITY POOR - SEE OWNERS MANUAL NOW – 160 KM (99 MI) UNTIL 104 KM/H (65 MPH) MAX SPEED displays...

GMC Terrain 2018-2026 Owners Manual: Vehicle Alarm System

This vehicle has an anti-theft alarm system. The indicator light, on the instrument panel near the windshield, indicates the status of the system: Off : Alarm system is disarmed. On Solid : Vehicle is secured during the delay to arm the system. Fast Flash : Vehicle is unsecured...

Vehicle Personalization

The following are all possible vehicle personalization features. Depending on the vehicle, some may not be available.

For System, Apps, and Personal features and functions, see “Settings” in the infotainment manual.

To access the vehicle personalization menu: