2010 GMC YUKON DENALI fuel cap

Note:The Tire Pressure Monitor can alert you about
low tire pressure, but it does not replace normal monthly
tire maintenance. It is the driver ’s responsibility to
maintain correct tire pressures.
See Tire Pressure Monitor System
on page 6‑66and
Tire Pressure Monitor Operation on page 6‑68.
Engine Oil Life System
The engine oil life system calculates engine oil life
based on vehicle use and, on most vehicles, displays a
DIC message when it is necessary to change the
engine oil and filter. The oil life system should be reset
to 100% only following an oil change.
Resetting the Oil Life System
To reset the Engine Oil Life System on most vehicles:
1. Display the OIL LIFE REMAINING on the DIC. If the vehicle does not have DIC buttons, the
vehicle must be in P (Park) to access this display.
2. Press and hold the SET/RESET button on the DIC, or the trip odometer reset stem if the vehicle does
not have DIC buttons, for more than five seconds.
The oil life will change to 100%. On all vehicles, the Engine Oil Life System can be reset
as follows:
1. Turn the ignition to ON/RUN with the engine off
2. Fully press the accelerator pedal slowly three times within five seconds.
3. Display the OIL LIFE REMAINING on the DIC. If the display shows 100%, the system is reset.
See Engine Oil Life System on page 6‑18.
Fuel E85 (85% Ethanol)
This vehicle has a yellow fuel cap and can use either
unleaded gasoline or ethanol fuel containing up to 85%
ethanol (E85). See Gasoline Octane
on page 6‑6and
Fuel E85 (85% Ethanol) on page 6‑7.
1-23

Notice:Modifications made to the engine,
transmission, exhaust, intake, or fuel system of the
vehicle or the replacement of the original tires with
other than those of the same Tire Performance
Criteria (TPC) can affect the vehicle's emission
controls and can cause this light to come on.
Modifications to these systems could lead to
costly repairs not covered by the vehicle
warranty. This could also result in a failure to
pass a required Emission Inspection/Maintenance
test. See Accessories and Modifications
on
page 6‑3.
This light comes on during a malfunction in one of
two ways:
Light Flashing : A misfire condition has been detected.
A misfire increases vehicle emissions and could
damage the emission control system on the vehicle.
Diagnosis and service might be required.
To prevent more serious damage to the vehicle:
.Reduce vehicle speed.
.Avoid hard accelerations.
.Avoid steep uphill grades.
.If towing a trailer, reduce the amount of cargo
being hauled as soon as it is possible. If the light continues to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the key off, wait at least 10 seconds, and restart
the engine. If the light is still flashing, follow the
previous steps and see your dealer/retailer for service
as soon as possible.
Light On Steady :
An emission control system
malfunction has been detected on the vehicle.
Diagnosis and service might be required.
An emission system malfunction might be corrected by
doing the following:
.Make sure the fuel cap is fully installed. See Filling
the Tankon page 6‑9. The diagnostic system
can determine if the fuel cap has been left off or
improperly installed. A loose or missing fuel cap
allows fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed
should turn the light off.
.If the vehicle has been driven through a deep
puddle of water, the vehicle's electrical system
might be wet. The condition is usually corrected
when the electrical system dries out. A few driving
trips should turn the light off.
4-36

Fuel Gage
United StatesCanada
The fuel gage, when the ignition is on, shows how much
fuel the vehicle has left in the fuel tank.
An arrow on the fuel gage indicates the side of the
vehicle the fuel door is on. The gage first indicates empty before the vehicle is out
of fuel. The vehicle's fuel tank should be filled soon.
When the fuel tank is low, the FUEL LEVEL LOW
message will appear. See
DIC Warnings and Messages
on page 4‑56.
Here are some situations customers experience with
the fuel gage. None of these indicate a problem with the
fuel gage.
.At the gas station, the fuel pump shuts off before
the gage reads full.
.It takes a little more or less fuel to fill up than the
fuel gage indicated. For example, the gage may
have indicated the fuel tank was half full, but it
actually took a little more or less than half the fuel
tank's capacity to fill it.
.The gage goes back to empty when the ignition is
turned off.
4-41

TIGHTEN GAS CAP
This message may display along with the check engine
light on the instrument panel cluster if the vehicle's fuel
cap is not tightened properly. SeeMalfunction Indicator
Lamp
on page 4‑35. Reinstall the fuel cap fully.
See Filling the Tankon page 6‑9. The diagnostic
system can determine if the fuel cap has been left off or
improperly installed. A loose or missing fuel cap allows
fuel to evaporate into the atmosphere. A few driving
trips with the cap properly installed should turn this light
and message off.
TIRE LEARNING ACTIVE
On vehicles with the Tire Pressure Monitor System
(TPMS), this message displays when the TPMS is
re-learning the tire positions on your vehicle. The tire
positions must be re-learned after rotating the tires or
after replacing a tire or sensor. See Tire Inspection and
Rotation
on page 6‑71, Tire Pressure Monitor Systemon page 6‑66, and Inflation - Tire Pressureon
page 6‑64for more information.
TIRE LOW ADD AIR TO TIRE
On vehicles with the Tire Pressure Monitor System
(TPMS), this message displays when the pressure in
one or more of the vehicle's tires needs to be checked.
This message also displays LEFT FRT (left front),
RIGHT FRT (right front), LEFT RR (left rear), or
RIGHT RR (right rear) to indicate the location of the low
tire. The low tire pressure warning light will also come
on. See Tire Pressure Light
on page 4‑34.
You can receive more than one tire pressure message
at a time. To read the other messages that may have
been sent at the same time, press the set/reset button
or the trip odometer reset stem. If a tire pressure
message appears on the DIC, stop as soon as you can.
Have the tire pressures checked and set to those
shown on the Tire Loading Information label. See Tires
on page 6‑57,Loading the Vehicleon page 5‑31, and
Inflation - Tire Pressureon page 6‑64. The DIC also
shows the tire pressure values. See “DIC Operation and
Displays (Using DIC Buttons)” earlier in this section.
TRACTION CONTROL OFF
If your vehicle has StabiliTrak, this message displays
when the Traction Control System (TCS) is turned off.
Adjust your driving accordingly. See StabiliTrak
®
Systemon page 5‑6for more information.
4-64

Example 3
Item DescriptionTotal
A Vehicle Capacity
Weight for
Example 3 = 1,000 lbs
(453 kg)
B Subtract Occupant
Weight @ 200 lbs
(91 kg) × 5 = 1,000 lbs
(453 kg)
C Available Cargo
Weight =
0 lbs (0 kg)
Refer to your vehicle's tire and loading information
label for specific information about your vehicle's
capacity weight and seating positions. The combined weight of the driver, passengers and
cargo should never exceed your vehicle's capacity
weight.
Certification/Tire Label
A vehicle specific Certification/Tire label is found
on the rear edge of the driver's door. The label
shows the size of your vehicle's original tires and
the inflation pressures needed to obtain the gross
weight capacity of your vehicle. This is called
Gross Vehicle Weight Rating (GVWR). The
GVWR includes the weight of the vehicle, all
occupants, fuel and cargo.
5-34

Towing a Trailer
Do not tow a trailer during break‐in. SeeNew Vehicle
Break-Inon page 3‑24for more information.
{WARNING:
The driver can lose control when pulling a trailer if
the correct equipment is not used or the vehicle is
not driven properly. For example, if the trailer is
too heavy, the brakes may not work well —or
even at all. The driver and passengers could be
seriously injured. The vehicle may also be
damaged; the resulting repairs would not be
covered by the vehicle warranty. Pull a trailer only
if all the steps in this section have been followed.
Ask your dealer/retailer for advice and information
about towing a trailer with the vehicle.
Notice: Pulling a trailer improperly can damage the
vehicle and result in costly repairs not covered by
the vehicle warranty. To pull a trailer correctly,
follow the advice in this section and see your
dealer/retailer for important information about
towing a trailer with the vehicle. To identify the trailering capacity of the vehicle, read the
information in
“Weight of the Trailer” that appears later
in this section.
Trailering is different than just driving the vehicle by
itself. Trailering means changes in handling,
acceleration, braking, durability and fuel economy.
Successful, safe trailering takes correct equipment, and
it has to be used properly.
The following information has many time-tested,
important trailering tips and safety rules. Many of these
are important for your safety and that of your
passengers. So please read this section carefully before
pulling a trailer.
5-42

Filling the Tank
{WARNING:
Fuel vapor burns violently and a fuel fire can
cause bad injuries. 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. Do not smoke near fuel or when
refueling the vehicle. Do not use cellular phones.
Keep sparks, flames, and smoking materials away
from fuel. Do not leave the fuel pump unattended
when refueling the vehicle. This is against the law
in some places. Do not re-enter the vehicle while
pumping fuel. Keep children away from the fuel
pump; never let children pump fuel.
The tethered fuel cap is located behind a hinged fuel
door on the driver side of the vehicle. If the vehicle
has E85 fuel capability, the fuel cap will be yellow and
state that E85 or gasoline can be used. SeeFuel E85
(85% Ethanol) on page 6‑7.
6-9

To open the fuel door, push the rearward center edge in
and release and it will open.
To remove the fuel cap, turn it slowly counterclockwise.
The fuel cap has a spring in it; if the cap is released too
soon, it will spring back to the right.
While refueling, hang the tethered fuel cap from the
hook on the fuel door.
{WARNING:
Fuel can spray out on you if you open the fuel cap
too quickly. If you spill fuel and then something
ignites it, you could be badly burned. 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.
Be careful not to spill fuel. Do not top off or overfill the
tank and wait a few seconds after you have finished
pumping before removing the nozzle. Clean fuel from
painted surfaces as soon as possible. See Washing
Your Vehicle on page 6‑102.
When replacing the fuel cap, insert the tether in its hole
before tightening the cap. Turn the fuel cap clockwise
until it clicks. It will require more effort to turn the fuel
cap on the last turn as you tighten it. Make sure the cap
is fully installed. The diagnostic system can determine if
the fuel cap has been left off or improperly installed.
This would allow fuel to evaporate into the atmosphere.
See Malfunction Indicator Lamp on page 4‑35
6-10