2019 GMC TERRAIN check engine

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
140 Instruments and Controls
This light should come on briefly as
the engine is started. If it does not
come on, have the vehicle serviced
by your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer.
Low Fuel Warning Light
For the base level cluster, this light
comes on when the fuel tank is low
on fuel. The light turns off when fuel
is added. If it does not, have the
vehicle serviced.
For the uplevel cluster, this light is
near the fuel gauge and comes on
briefly when the ignition is turned on
as a check to show it is working.
It also comes on when the fuel tank
is low on fuel. The light turns off
when fuel is added. If it does not,
have the vehicle serviced.
Diesel Exhaust Fluid
(DEF) Warning Light
This light, a Driver Information
Center (DIC) Message, and a chime
come on when there is an issue with
the DEF.
If the DEF issue has not been
corrected, the light will continue to
flash. The vehicle's speed may also
be limited. SeeDiesel Exhaust Fluid
0 208.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Instruments and Controls 145
3. PressVto enter the
Options menu.
4. Scroll to Info Pages and press
p.
5. Press
worxto move
through the list of possible
information displays.
6. 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). Trip A or Trip B :
Shows the
current distance traveled, in either
kilometers (km) or miles (mi), since
the trip odometer was last reset.
This also shows the approximate
average liters per 100 kilometers
(L/100 km) or miles per
gallon (mpg). This number is
calculated based on the number of
L/100 km (mpg) recorded since the
last time this menu item was reset.
This number reflects only the
approximate average fuel economy
that the vehicle has right now, and
will change as driving conditions
change.
Press and holdVwhile this display
is active to reset the trip odometer
and the average fuel economy. Trip
A and Trip B can also be reset by
pressing
pand choosing reset.
Fuel Information or Fuel Range :
Shows the approximate distance the
vehicle can be driven without
refueling. LOW will be displayed
when the vehicle is low on fuel. The
fuel range estimate is based on an
average of the vehicle's fuel economy over recent driving history
and the amount of fuel remaining in
the fuel tank.
Oil Life :
Shows an estimate of the
oil's remaining useful life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of the
current oil life remains.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
The oil should be changed as soon
as possible. See Engine Oil0294.
In addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended. See Maintenance
Schedule 0378.
The Oil Life display must be reset
after each oil change. It will not
reset itself. Do not to reset the Oil
Life display at any time other than
when the oil has just been changed.
It cannot be reset accurately until
the next oil change. To reset the
engine oil life system, press
Vfor
several seconds while the Oil Life
display is active or press
pto open

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Instruments and Controls 147
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 and hold
Vto clear the graph
or press
pto reset through
the menu.
Timer : This display can be used as
a timer. To start the timer, press
V
to open the menu while this display
is active. The display will show the
amount of time that has passed
since the timer was last reset. To
stop the timer, press
Vbriefly while
this display is active and the timer is
running. To reset the timer to zero,
press and hold
Vwhile this display
is active, or press
pand select
reset.
Follow Distance : If equipped, the
current follow time to the vehicle
ahead is displayed as a time value
on this page.
Battery Voltage : Displays the
current battery voltage, if equipped.
Battery voltage changes are normal
while driving. See Charging System Light
0133. 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).
Diesel Exhaust Fluid (DEF) Level
(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 0208.
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 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.
See
Instrument Cluster (Base and
Midlevel) 0122 orInstrument
Cluster (Uplevel) 0125. The
displays show the status of many
vehicle systems.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Instruments and Controls 151
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
0 208.
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
the bar. When there is an error, the
bar will be empty and “unavailable”will appear. When LOW appears on
the display, add DEF as soon as
possible. See
Diesel Exhaust Fluid
0 208.
Diesel Exhaust Fluid (DEF) Range
(Diesel Engine Only) : If equipped,
this page displays how far the
vehicle can go before DEF needs to
be replaced. Range is displayed in
mi or km. When the estimated range
is low, LOW will display. If an error
occurs, “−−”will display. When DEF
range is high, a greater than sign is
shown before the range value.
When LOW appears on the display,
add DEF as soon as possible. See
Diesel Exhaust Fluid 0208.Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle or
some action that may be needed to
correct a condition. Multiple
messages may appear one after
another.
The messages that do not require
immediate action can be
acknowledged and cleared by
pressing
V. The messages that
require immediate action cannot be
cleared until that action is
performed.
All messages should be taken
seriously; clearing the message
does not correct the problem.
If a SERVICE message appears,
see your dealer.
Follow the instructions given in the
messages. The system displays
messages regarding the following
topics:
. Service Messages
. Fluid Levels
. Vehicle Security

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Driving and Operating 187
braking. Drive at a reduced speed
and avoid sharp turns or abrupt
maneuvers.
Traction is reduced on hard packed
snow and ice and it is easy to lose
control. Reduce vehicle speed when
driving on hard packed snow
and ice.
{Warning
Driving on frozen lakes, ponds,
or rivers can be dangerous. Ice
conditions vary greatly and the
vehicle could fall through the ice;
you and your passengers could
drown. Drive your vehicle on safe
surfaces only.
Driving in Water
{Warning
Driving through rushing water can
be dangerous. Deep water can
sweep your vehicle downstream
and you and your passengers(Continued)
Warning (Continued)
could drown. If it is only shallow
water, it can still wash away the
ground from under your tires.
Traction could be lost, and the
vehicle could roll over. Do not
drive through rushing water.
Caution
Do not drive through standing
water if it is deep enough to cover
the wheel hubs, axles, or exhaust
pipe. Deep water can damage the
axle and other vehicle parts.
If the standing water is not too deep,
drive through it slowly. At faster
speeds, water can get into the
engine and cause it to stall. Stalling
can occur if the exhaust pipe is
under water. Do not turn off the
ignition when driving through water.
If the exhaust pipe is under water,
the engine will not start. When going through water, the brakes get wet
and it may take longer to stop. See
Driving on Wet Roads
0187.
After Off-Road Driving
Remove any brush or debris that
has collected on the underbody or
chassis, or under the hood. These
accumulations can be a fire hazard.
After operation in mud or sand,
have the brake linings cleaned and
checked. These substances can
cause glazing and uneven braking.
Check the body structure, steering,
suspension, wheels, tires, and
exhaust system for damage and
check the fuel lines and cooling
system for any leakage.
More frequent maintenance service
is required. See the Maintenance
Schedule 0378.
Driving on Wet Roads
Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
188 Driving and Operating
of driving conditions and avoid
driving through large puddles and
deep-standing or flowing water.
{Warning
Wet brakes can cause crashes.
They might not work as well in a
quick stop and could cause
pulling to one side. You could
lose control of the vehicle.
After driving through a large
puddle of water or a car/vehicle
wash, lightly apply the brake
pedal until the brakes work
normally.
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road is
wet enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
. Pass with caution.
. Keep windshield wiping
equipment in good shape.
. Keep the windshield washer fluid
reservoir filled.
. Have good tires with proper
tread depth. See Tires0325.
. Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips include:
.Keep the vehicle serviced and in
good shape.
. Check all fluid levels and brakes,
tires, cooling system, and
transmission.
. Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the
vehicle on a long downhill slope
can cause brake overheating, can
reduce brake performance, and
could result in a loss of braking.
Shift the transmission to a lower
gear to let the engine assist the
brakes on a steep downhill slope.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Driving and Operating 199
0294. When the outside
temperature drops below –18°C
(0°F), use of the engine heater is
recommended.
See Fuel for Diesel Engines 0262
for information on what fuel to use in
cold weather.
If the Diesel Engine Will Not
Start
If the vehicle has run out of fuel, see
Running Out of Fuel (Diesel) 0267.
If the vehicle is not out of fuel, and
the engine will not start:
Press ENGINE START/STOP.
Immediately after the wait-to-start
light goes off, press ENGINE
START/STOP to start the vehicle.
If the light does not go off, wait a
few seconds, then try starting the
engine again. See your dealer for a
starting system check.
If the light comes on and then goes
off, and it is known that the battery
is charged, but the engine still will
not start, the vehicle needs service. If the light does not come on when
the engine is cold, the vehicle
needs service.
If the battery does not have enough
charge to start the engine, see
Battery - North America
0309.
Check that the correct engine oil
has been used and changed at
appropriate intervals. If the wrong oil
is used, the engine may be harder
to start.
Be sure to use the proper fuel for
existing weather conditions. See
Fuel for Diesel Engines 0262.
If the engine starts, runs a short
time, then stops, the vehicle needs
service.
{Warning
Do not use gasoline or starting
aids, such as ether, in the air
intake. They could damage the
engine, which may not be
covered by the vehicle warranty. (Continued)
Warning (Continued)
They could also cause a fire,
which could cause serious
personal injury.
Stop/Start System
If equipped, the Stop/Start system
will shut off the engine to help
conserve fuel. It has components
designed for the increased number
of starts.
{Warning
The automatic engine Stop/Start
feature causes the engine to shut
off while the vehicle is still on. Do
not exit the vehicle before shifting
to P (Park). The vehicle may
restart and move unexpectedly.
Always shift to P (Park), and then
turn the ignition off before exiting
the vehicle.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Driving and Operating 201
during engine warm-up. Plug in the
engine heater at least four hours
before starting the vehicle. An
internal thermostat in the plug end
of the cord will prevent engine
heater operation at temperatures
above−18 °C (0 °F).
To Use the Engine Heater
1. Turn off the engine.
2. Remove the heater cord from
the rear compartment.
3. Check the heater cord for damage. If it is damaged, do
not use it. See your dealer for
a replacement. Inspect the
cord for damage yearly.
4. Plug the cord into the receptacle in the front fascia.
5. Plug the other end of the cord into a normal, grounded
110-volt AC outlet.
{Warning
Improper use of the heater cord
or an extension cord can damage
the cord and may result in
overheating and fire.
. Plug the cord into a
three-prong electrical utility
receptacle that is protected
by a ground fault detection
function. An ungrounded
outlet could cause an
electric shock.
. Use a weatherproof,
heavy-duty, 15 amp-rated
extension cord if needed.
Failure to use the
recommended extension
cord in good operating
condition, or using a
damaged heater or
extension cord, could make
it overheat and cause a fire,
property damage, electric
shock, and injury.
(Continued)
Warning (Continued)
.Do not operate the vehicle
with the heater cord
permanently attached to the
vehicle. Possible heater
cord and thermostat
damage could occur.
. While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
. Before starting the vehicle,
unplug the cord, reattach
the cover to the plug, and
securely fasten the cord.
Keep the cord away from
any moving parts.
The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer in the
area where you will be parking the
vehicle for the best advice on this.