2021 GMC TERRAIN oil viscosity

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Instruments and Controls 105
engine speed, outside temperature, and oil
viscosity. On some models, the oil pump will
vary engine oil pressure according to engine
needs. Oil pressure may change quickly as
the engine speed or load varies. This is
normal. If the oil pressure warning light or
Driver Information Center (DIC) message
indicates oil pressure outside the normal
operating range, check the vehicle's oil as
soon as possible.
Driver Information Center (DIC)
(Uplevel)
The DIC displays are shown in the center of
the instrument cluster in the Info App.
SeeInstrument Cluster (Base and Midlevel)
0 85 or
Instrument Cluster (Uplevel) 088. The
displays show the status of many vehicle
systems.worx: Press to move up or down in
a list.
oorp: Press to move between the
interactive display zones in the cluster.
V: Press to open a menu or select a menu
item. Press and hold to reset values on
certain screens.
Info Page Options
The info pages on the DIC can be turned on
or off through the Options menu.
1. Press
oorpto scroll to the Options
application.
2. Press
worxto scroll to the Info Page
Options and press
V. 3. Press
worxto move through the list
of possible information displays.
4. Press
Vwhile an item is highlighted to
select or deselect that item. When an
item is selected, a checkmark will appear
next to it.
Info Pages
The following is the list of all possible DIC
info page displays. Some may not be
available for your particular vehicle. Some
items may not be turned on by default but
can be turned on through the Options app.
See “Info Page Options” earlier in this
section.
Speed : Shows the vehicle speed in either
kilometers per hour (km/h) or miles per
hour (mph). If equipped, press
Vto open
the menu and select to display speed limit
signs. The sign will show “− −”when there
is no detected speed limit or the system is
unavailable.
Speed Limit : Shows sign information, which
comes from a roadway database in the
onboard navigation, if equipped. The sign
will show “− −”when there is no detected
speed limit or the system is unavailable.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Instruments and Controls 107
selected distance. Displayed below the bar
graph is the best average fuel economy that
has been achieved for the selected distance.
The selected distance is displayed at the top
of the page as“last xxx mi/km.”
Press
Vto select the distance or reset best
value. Use
wandxto choose the
distance and press
V. Presswandxto
select “Reset Best Score.” Press
Vto reset
the best average fuel economy. After reset,
the best value displays “-,-”until the
selected distance has been traveled.
The display provides information on how
current driving behavior affects the running
average and how well recent driving
compares to the best that has been
achieved for the selected distance.
Average Speed : Displays the average
vehicle speed of the vehicle in kilometers
per hour (km/h) or miles per hour (mph).
This average is based on the various vehicle
speeds recorded since the last reset. Reset
the average speed by pressing
Vwhile this
display is active to show a confirmation
window to select yes or no and press
V. Timer :
This display can be used as a timer.
To start the timer, press
Vto open the
menu while this display is active. Use
w
andxto select Start Timer or Reset. Press
V. To stop the timer, pressVwhile this
display is active. The display will show the
amount of time that has passed since the
timer was last reset.
Follow Distance/Gap Setting : If equipped,
the current follow time to the vehicle ahead
is displayed as a time value on this page.
When Adaptive Cruise Control (ACC) has
been engaged, the display switches to the
gap setting page. This page shows the
current gap setting along with the vehicle
ahead indicator.
Driver Assistance : If equipped, shows
information for Lane Keep Assist (LKA), Lane
Departure Warning (LDW), and Forward
Collision Alert (FCA).
Battery Voltage : Displays the current
battery voltage, if equipped. Battery voltage
changes are normal while driving. See
Charging System Light 093. If there is a
problem with the battery charging system, a
DIC will display a message. Coolant Temperature :
Displays the coolant
temperature in degrees Celsius (°C) or
degrees Fahrenheit (°F).
Economy Trend : Shows history of the
Average Fuel Economy from the last 50 km
(30 mi). Each bar represents about 5 km
(3 mi) of driving. During driving the bars will
shift to always reflect the most recent
distance on the right side. Press
Vto open
the menu while this display is active to clear
the graph. Select yes or no and press
V.
Oil Pressure : Oil pressure is displayed in
either kilopascal (kPa) or in pounds per
square inch (psi). Oil pressure can vary with
engine speed, outside temperature, and oil
viscosity. On some models, the oil pump will
vary engine oil pressure according to engine
needs. Oil pressure may change quickly as
the engine speed or load varies. This is
normal. If the oil pressure warning light or
DIC message indicates oil pressure outside
the normal operating range, check the
vehicle's oil as soon as possible.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
262 Vehicle Care
1.Engine Air Cleaner/Filter 0265.
2. Engine Oil Fill Cap. See Engine Oil0262.
3. Engine Oil Dipstick. See Engine Oil0262.
4. Engine Cooling Fan. See Cooling System
0 267.
5. Brake Fluid Reservoir. See Brake Fluid
0 272.
6. Engine Compartment Fuse Block 0281.
7. Remote Positive (+) Terminal (Under Cover). See Jump Starting - North
America 0316.
8. Engine Coolant Surge Tank and Pressure Cap. See Cooling System 0267.
9. Battery - North America 0273.
10. Remote Negative (−) Terminal. See Jump
Starting - North America 0316.
11. Windshield Washer Fluid Reservoir. See Washer Fluid 0271.
Engine Oil
To ensure proper engine performance and
long life, careful attention must be paid to
engine oil. Following these simple, but
important steps will help protect your
investment:
.Use engine oil approved to the proper
specification and of the proper viscosity
grade. See “Selecting the Right Engine
Oil” in this section.
.Check the engine oil level regularly and
maintain the proper oil level. See
“Checking Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the appropriate
time. SeeEngine Oil Life System 0264.
.Always dispose of engine oil properly. See
“What to Do with Used Oil” in this
section.
Checking Engine Oil
Check the engine oil level regularly, every
650 km (400 mi), especially prior to a long
trip. The engine oil dipstick handle is a loop.
See Engine Compartment Overview 0261 for
the location.
{Warning
The engine oil dipstick handle may be
hot; it could burn you. Use a towel or
glove to touch the dipstick handle. If a low oil Driver Information Center (DIC)
message displays, check the oil level. If the
oil is not low and the low oil message
remains on, take the vehicle to your dealer
for service.
Follow these guidelines:
.To get an accurate reading, park the
vehicle on level ground. Check the engine
oil level after the engine has been off for
at least two hours. Checking the engine
oil level on steep grades or too soon after
engine shutoff can result in incorrect
readings. Accuracy improves when
checking a cold engine prior to starting.
Remove the dipstick and check the level.
.If unable to wait two hours, the engine
must be off for at least 15 minutes if the
engine is warm, or at least 30 minutes if
the engine is not warm. Pull out the
dipstick, wipe it with a clean paper towel
or cloth, then push it back in all the way.
Remove it again, keeping the tip down,
and check the level.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Vehicle Care 263
When to Add Engine Oil
If the oil is below the cross-hatched area at
the tip of the dipstick and the engine has
been off for at least 15 minutes, add 1 L (1
qt) of the recommended oil and then
recheck the level. See“Selecting the Right
Engine Oil” later in this section for an
explanation of what kind of oil to use. For
engine oil crankcase capacity, see Capacities
and Specifications 0343.
Caution
Do not add too much oil. Oil levels above
or below the acceptable operating range
shown on the dipstick are harmful to the
engine. If the oil level is above the
operating range (i.e., the engine has so
much oil that the oil level gets above the
cross-hatched area that shows the proper
(Continued)
Caution (Continued)
operating range), the engine could be
damaged. Drain the excess oil or limit
driving of the vehicle, and seek a service
professional to remove the excess oil.
See Engine Compartment Overview 0261 for
the location of the engine oil fill cap.
Add enough oil to put the level somewhere
in the proper operating range. Push the
dipstick all the way back in when through.
Selecting the Right Engine Oil
Selecting the right engine oil depends on
both the proper oil specification and
viscosity grade. See Recommended Fluids
and Lubricants 0339.
Specification
Use full synthetic engine oils that meet the
dexos1 specification.
Engine oils that have been approved by GM
as meeting the dexos1 specification are
marked with the dexos1 approved logo. See
www.gmdexos.com.
Caution
Failure to use the recommended engine
oil or equivalent can result in engine
damage not covered by the vehicle
warranty.
Viscosity Grade
Use SAE 0W-20 viscosity grade engine oil.
When selecting an oil of the appropriate
viscosity grade, it is recommended to select
an oil of the correct specification. See
“Specification” earlier in this section.
Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The
recommended oils meeting the dexos1
specification are all that is needed for good
performance and engine protection.

GMC Terrain/Terrain Denali Owner Manual(GMNA-Localizing-U.S./Canada/
Mexico-14420055) - 2021 - CRC - 11/13/20
Service and Maintenance 339
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission DEXRON-VI Automatic Transmission Fluid. Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See Cooling
System 0267.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco
dexos1 full synthetic is recommended. See Engine Oil0262.
Hood and Door Hinges, and Key Lock Cylinders Multi-Purpose Lubricant. See your dealer. Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl Lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid.
Rear Axle (All-Wheel Drive) See your dealer.
Transfer Case (All-Wheel Drive) Transfer Case Fluid. See your dealer. Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.