2020 GMC TERRAIN fuel pump

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
112 Instruments and Controls
Here are four things that some
owners ask about. None of these
show a problem with the fuel gauge:
.At the service station, the fuel
pump shuts off before the gauge
reads full.
. It takes a little more or less fuel
to fill up than the gauge
indicated. For example, the
gauge indicated the tank was
half full, but it actually took a
little more or less than half the
tank's capacity to fill the tank.
. The gauge moves a little while
turning a corner or speeding up.
. The gauge takes a few seconds
to stabilize after the ignition is
turned on, and goes back to
empty when the ignition is
turned off.Engine Coolant
Temperature Gauge
Metric Uplevel
English Uplevel
This gauge shows the engine
coolant temperature.
If the pointer moves toward the
warning area at the high end of the
gauge, the engine is too hot.
If the engine coolant has
overheated and the vehicle has
been operating under normal driving
conditions, pull off the road, stop the
vehicle, and turn off the engine as
soon as possible. See Engine
Overheating 0294.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Instruments and Controls 133
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.
Timer : This display can be used as
a timer. To start the timer, press
V
to open the menu while this display
is active. Use
wandxto select
Start Timer or Reset. Press
V. To
stop the timer, press
Vwhile this
display is active. The display will
show the amount of time that has
passed since the timer was last
reset. 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.
Press
Vwhile this display is active
to toggle Speed Limit sign on or off.
Battery Voltage : Displays the
current battery voltage, if equipped.
Battery voltage changes are normal
while driving. See Charging System
Light 0115. If there is a problem
with the battery charging system, a
DIC will display a message.
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.
Coolant Temperature :
Displays
the coolant temperature in degrees
Celsius (°C) or degrees Fahrenheit
(°F).
Diesel Exhaust Fluid (DEF) Level
Percent (Diesel Engine Only) :
If equipped, the DEF level will be
displayed as either OK, XX%,
or LOW. When LOW appears on the
display, add DEF as soon as
possible. See Diesel Exhaust Fluid
0 195.
Diesel Exhaust Fluid (DEF) Level
Gauge (Diesel Engine Only) :
If equipped, the DEF level displays
as a horizontal bar gauge with E or
0 and F or 1 at both ends. If more of
the bar is filled green, the vehicle
has a higher level of DEF. When the
estimated level is low, the gauge will
turn red and LOW will display above

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
252 Driving and Operating
Caution
Do not use blends containing
more than 20% biodiesel. Any
engine, fuel system, or exhaust
after-treatment system damage
would not be covered by the
vehicle warranty.
As a renewable fuel, biodiesel
provides some environmental
benefits. However, biodiesel has
unique properties and needs to be
handled differently than diesel fuel.
Its use presents additional risks and
may not be appropriate in all
situations. Certain vehicle operating
modes increase these risks and
should be avoided.
Biodiesel fuel quality degrades with
time and exposure to high
temperature quicker than Ultra Low
Sulfur Diesel fuel. More frequent
refueling provides the best
opportunity to have a supply of fresh
fuel. Storage at hot ambient
temperatures will accelerate
biodiesel degradation. If the vehicle is not driven often and
uses little fuel, or if it is stored for
extended periods of time, avoid the
use of biodiesel blended fuels
above 5% by volume. When the
vehicle is stored for longer than one
month, it should be run out of
biodiesel to below one-quarter tank,
refueled with biodiesel-free fuel, and
driven several kilometers (miles)
before storage.
Cold Weather Operation
(Diesel)
In cold weather, the fuel filter may
become clogged by wax naturally
present in the fuel. To unclog it,
move the vehicle to a warm garage
area and allow the filter to warm up.
The fuel filter may need to be
replaced. See
Fuel Filter
Replacement (Diesel) 0256.
At temperatures below 0 °C (32 °F),
it is recommended to avoid using
biodiesel blends above 5% blend.
This blend may cause fuel filter
plugging, system gelling, and
freezing that may affect vehicle
starting. You may need to turn the ignition on and off a few times
before the vehicle will start. Also,
idle the vehicle for a couple of
minutes before accelerating.
It is recommended to use Ultra Low
Sulfur No. 1-D diesel fuel or a blend
of No. 1-D and No. 2-D diesel fuel to
enhance vehicle operation in cold
weather at temperatures below 0 °C
(32 °F). Use of No. 1-D diesel fuel
may lower the fuel economy. For
additional information for better cold
weather operation, see
Engine
Heater 0186.Water in Fuel (Diesel)
Improper fuel tank inspection or
cleaning, or contaminated fuel from
suppliers, can cause water to be
pumped into the fuel tank along with
the diesel fuel. If a WATER IN FUEL
- CONTACT SERVICE message
displays, the water must be drained
immediately.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
254 Driving and Operating
ProblemRecommended
Action
Message
displays and
stays on. Drain the fuel
filter
immediately.
If no water can
be drained, and
the temperature
is below
freezing, then
water may be
frozen in the
filter. Move the
vehicle to a
warm location to
thaw the water,
then drain the
fuel. If water still
does not drain,
see your dealer. Problem
Recommended
Action
Immediately
after refueling,
message
displays and
stays on. A large amount
of water is in the
fuel tank. Drain
the fuel filter
immediately.
If the message
stays on or
comes back on
without
refueling, then
fuel tank purging
is required. See
your dealer.
If the message
displays and the
engine stalls or
runs rough, do
not drive until
the water
contaminated
fuel is drained.Caution
Driving with this message on can
damage the fuel injection system
and the engine. If the message
comes on right after a refuel,
water was pumped into the fuel
tank. Turn off the engine and
drain the water immediately.
Removing Water from the Fuel
Filter
To drain water: 1. Turn the engine off and apply the parking brake.
2. Place a container under the filter drain valve, which is on
the bottom of the fuel filter.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Driving and Operating 257
8. Start the engine and let it idlefor five minutes. Check the fuel
filter and air bleed valve for
leaks.
9. Reset the fuel filter monitor. See Driver Information Center
(DIC) (Base and Midlevel)
0 124 or
Driver Information Center (DIC)
(Uplevel) 0130.
Filling the Tank
(Gasoline)
An arrow on the fuel gauge
indicates which side of the vehicle
the fuel door is on. See Fuel Gauge
0 111.
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death.
Follow these guidelines to help
avoid injuries to you and others:
(Continued)
Warning (Continued)
.Read and follow all the
instructions on the fuel
pump island.
. Turn off the engine when
refueling.
. Keep sparks, flames, and
smoking materials away
from fuel.
. Do not leave the fuel pump
unattended.
. Avoid using electronic
devices while refueling.
. Do not re-enter the vehicle
while pumping fuel.
. Keep children away from
the fuel pump and never let
children pump fuel.
. Before touching the fill
nozzle, touch a metallic
object to discharge static
electricity from your body.
(Continued)
Warning (Continued)
.Fuel can spray out if the fill
nozzle is inserted too
quickly. This spray can
happen if the tank is nearly
full, and is more likely in hot
weather. Insert the fill nozzle
slowly and wait for any hiss
noise to stop before
beginning to flow fuel.
To open the fuel door, push and
release the rearward center edge of
the door.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
258 Driving and Operating
The capless refueling system does
not have a fuel cap. Fully insert and
latch the fill nozzle, begin fueling.
{Warning
Overfilling the fuel tank by more
than three clicks of a standard fill
nozzle may cause:. Vehicle performance issues,
including engine stalling and
damage to the fuel system.
. Fuel spills.
. Under certain conditions,
fuel fires.
Be careful not to spill fuel. Wait
five seconds after you have finished
pumping before removing the fill
nozzle. Clean fuel from painted
surfaces as soon as possible. See
Exterior Care 0356. Push the fuel
door closed until it latches.
{Warning
If a fire starts while you are
refueling, do not remove the fill
nozzle. Shut off the flow of fuel by
shutting off the pump or by
notifying the station attendant.
Leave the area immediately.
Filling the Tank with a Portable
Fuel Container
If the vehicle runs out of fuel and
must be filled from a portable fuel
container:
1. Locate the capless funnel adapter from under the
spare tire.
2. Insert and latch the funnel into the capless fuel system.
{Warning
Attempting to refuel from a
portable fuel container without
using the funnel adapter may
cause fuel spillage and damage
the capless fuel system. This
could cause a fire. You or others
could be badly burned and the
vehicle could be damaged.
3. Remove and clean the funnel adapter and return it to the
storage location.
Filling the Tank (Diesel)
An arrow on the fuel gauge
indicates which side of the vehicle
the fuel door is on. See Fuel Gauge
0 111. Do not refill the diesel fuel
and Diesel Exhaust Fluid (DEF) at
the same time.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
Driving and Operating 259
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death.
Follow these guidelines to help
avoid injuries to you and others:. Read and follow all the
instructions on the fuel
pump island.
. Turn off the engine when
refueling.
. Keep sparks, flames, and
smoking materials away
from fuel.
. Do not leave the fuel pump
unattended.
. Avoid using electronic
devices while refueling.
. Do not re-enter the vehicle
while pumping fuel.
. Keep children away from
the fuel pump and never let
children pump fuel.
(Continued)
Warning (Continued)
.Before touching the fill
nozzle, touch a metallic
object to discharge static
electricity from your body.
. Fuel can spray out if the fuel
cap is opened too quickly.
This spray can happen if the
tank is nearly full, and is
more likely in hot weather.
Open the fuel cap slowly
and wait for any hiss noise
to stop, then unscrew the
cap all the way.
To open the fuel door, push and
release the rearward center edge of
the door.
Turn the fuel cap counterclockwise
to remove. When refueling, hang the
fuel cap from the hook on the fuel
door. Fully insert and latch the fill
nozzle, begin fueling.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13556230) - 2020 - CRC - 9/4/19
260 Driving and Operating
{Warning
Overfilling the fuel tank by more
than three clicks of a standard fill
nozzle may cause:. Vehicle performance issues,
including engine stalling and
damage to the fuel system.
. Fuel spills.
. Under certain conditions,
fuel fires.
Diesel fuel can foam when filling the
tank. The automatic pump nozzle
may shut off, even if the tank is not
full. Wait for the foaming to stop,
and then fill the tank more slowly.
Be careful not to spill fuel. Wait
five seconds after pumping before
removing the fill nozzle. Clean fuel
from painted surfaces as soon as
possible. See Exterior Care0356.
Reinstall the cap by turning it
clockwise until it clicks. Push the
fuel door closed until it latches.
{Warning
If a fire starts while you are
refueling, do not remove the fill
nozzle. Shut off the flow of fuel by
shutting off the pump or by
notifying the station attendant.
Leave the area immediately.
Caution
If a new fuel cap is needed, be
sure to get the right type of cap
from your dealer. The wrong type
of fuel cap may not fit properly
and could damage the fuel
system. Accidental Refueling with
Gasoline
Caution
If the vehicle is accidentally
refueled with gasoline, do not
continue driving the vehicle
except to get to a location where
it can be stopped safely. Driving
the vehicle will damage the
engine. Tow the vehicle for
service. Have the gasoline
removed from the tank and fuel
system.
Filling a Portable Fuel
Container (Gasoline)
{Warning
Never fill a portable fuel container
while it is in the vehicle. Static
electricity discharge from the
container can ignite the fuel
vapor. You or others could be
(Continued)