GMC Terrain: Vehicle Checks / Automatic Transmission Fluid
It is not necessary to check the transmission fluid level.
A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to your dealer and have it repaired as soon as possible.
Change the fluid at the intervals listed in Maintenance Schedule , and be sure to use the transmission fluid listed in Recommended Fluids and Lubricants.
Caution
Use of the incorrect automatic transmission fluid may damage the vehicle, and the damage may not be covered by the vehicle warranty. Always use the correct automatic transmission fluid. See Recommended Fluids and Lubricants.
There is a special procedure for checking and changing the transmission fluid. Because this procedure is difficult, this should be done by your dealer.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and filter. This is based
on a combination of factors which
include engine revolutions, engine
temperature, and miles driven...
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the
engine compartment on the
passenger side of the vehicle. See
Engine Compartment Overview.
When to Inspect the Engine Air Cleaner/Filter
For intervals on changing and
inspecting the engine air cleaner/filter, see Maintenance Schedule...
Other information:
GMC Terrain 2018-2021 Owners Manual: Warning Lights, Gauges, and Indicators
Warning lights and gauges can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to the warning lights and gauges could prevent injury. Some warning lights come on briefly when the engine is started to indicate they are working...
GMC Terrain 2018-2021 Owners Manual: Reducing Speed While Using Cruise Control
If the cruise control system is already activated: Press and hold –SET until the desired lower speed is reached, then release it. To slow down in small increments, briefly press –SET. For each press, the vehicle goes about 1 km/h (1 mph) slower...
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Categories
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:
Touch the Settings icon on the Home Page of the infotainment display. Touch Vehicle to display a list of available options. Touch to select the desired feature setting. Touch
or R to turn a
feature
off or on.
Touch 
to go to the top
level
of the Settings menu.
