enables the plug to be located closer to the center
of the combustion chamber. This improves the
flames propagation and increases light load
efficiency.
Oiling System: The LGX engine contains a
dual-pressure control and variable-displacement
vane pump that enhances efficiency by optimizing
oil pressure as a function of engine speed. The oil
pump is located beneath the cylinder block inside
the oil pan, contributing to the engines smoother
and quieter operation. The oiling system
components differ depending on the engine being
in a transverse or longitudinal orientation. The
LGX has unique oil pans depending on
orientation, with the pans being separated into an
upper (traditional aluminum) and lower (stamped
steel) pan. This configuration helps with noise and
mass concerns. It also affords some serviceability
improvements through not needing to remove the
entire upper pan for some service procedures; the
procedures can be performed through removing
the lower pan. The LGX oil pans contain oil level
switches as do nearly all HFV6 applications. The
oil level switch is normally open and closes at oil
levels above minimum requirements.
Right and Left Bank Designation: Right
hand (RH) and left hand (LH) designation
throughout the engine mechanical section are
viewed from the rear, flywheel side, of the engine
or from inside the vehicle. These banks are also
referred to as Bank 1 (RH) and Bank 2 (LH).
Vacuum Pump: The engine utilizes a mechanical
vacuum pump to provide a vacuum source for the
braking system. The vacuum pump is integrated

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into the oil pump assembly located in the oil pan.
Both vacuum pump and oil pump are part of a
common assembly, referred to as a tandem pump.
Neither pump is serviceable individually. If either
the oil pump or vacuum pump are defective,
replace the entire tandem pump assembly.
Engine Specifications
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Displacement: 3.6 L (222 cubic inches)
Bore x Stroke : 3.74 inches (95 mm) x
3.377 inches (85.8 mm)
Compression Ratio: 10.2:1
Horsepower: 310 horsepower (231 kW) @
6,600 RPM (Estimate)
Maximum Engine Speed: 7,200 RPM
Torque: 271 lb-ft (367 Nm) @ 5,000 RPM
(Estimate)
Valves: 2 intake and 2 exhaust valves per
cylinder
Recommended Fuel: Regular unleaded

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Ask for and use engine oils that meet the dexos®
specification. Engine oils that have been approved by
GM as meeting the dexos® specification are marked
with either of the dexos1® approved logos that are
shown. For additional information, visit this General
Motors website: http://www.gmdexos.com

Engine Oil — dexos®

Viscosity Grade
2.5L L4 Engine: Use ACDelco® dexos®1 SAE 5W-20
viscosity grade engine oil. SAE 0W-20 viscosity grade
may be used as an alternative. An oil of this viscosity
grade will provide easier cold starting for the engine at
extremely low temperatures.
3.6L V6 Engine: Use ACDelco® dexos®1 SAE 5W-30
viscosity grade engine oil. In an area of extreme cold,
where the temperature falls below −20°F (−29°C) use
SAE 0W-30 viscosity grade engine oil. An oil of this
viscosity grade will provide easier cold starting for the
engine at extremely low temperatures.

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Engine Oil Life System
The vehicle features GM’s engine oil life system, which
better protects engines by recommending oil changes
based on a computer software algorithm using actual
engine operating conditions and can save the vehicle
owner money by avoiding unnecessary oil changes.

Engine Auto Stop/Start — 2.5L
A fuel-saving Engine Auto Stop/Start system has been
integrated with the 2.5L engine. While driving, when the
brake pedal is applied and the vehicle is at a complete
stop, the Engine Auto Stop/Start system may turn the
engine OFF, depending on operating conditions. When
the engine is OFF, the tachometer will read AUTO
STOP. Upon releasing the brake pedal or applying the
accelerator pedal, the engine will restart. After parking
the vehicle and turning the engine OFF, the tachometer
will read OFF.
An upgraded starter motor and advanced battery
technology support the increased number of engine
starts. The starter motor has a high performance

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May, 2016

electric motor and stronger pinion engagement
mechanism. The starter motor has also been
re-designed to reduce the noise on startup. Advanced
battery technology ensures it can handle frequent
charge and discharge cycles. An intelligent battery
sensor module monitors the state of charge and health
of the battery. Battery state of charge and health are
used by the ECM to determine if the Stop/Start function
may be performed.
The engine may remain running or restart if:
• A minimum vehicle speed is not reached.
• The engine or transmission is not at the required
operating temperature.
• The outside (ambient) temperature is not in the
required operating range.
• The shift lever is in any gear other than D (Drive).
• The battery charge is low.
• The current settings for the climate control (HVAC)
or defog system have not been reached.
• The AUTO STOP time is greater than 2 minutes.

Bulletin No.: 16-NA-135

Instrument Panel Cluster - Midlevel

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Instrument Panel Cluster — Driver
Information Center

The IPC - Midlevel, comes standard with an array of
gauges. The IPC provides the driver with important
vehicle information at a glance. The midlevel cluster
consists of a speedometer, tachometer, temperature
gauge, oil pressure warning light, battery voltage
warning light and fuel gauge with the DIC in the lower
middle.

Instrument Panel Cluster - Base

Instrument Panel Cluster - Uplevel (English
Standard Theme)

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The instrument panel cluster (IPC) - Base, comes
standard with an array of gauges. The IPC provides the
driver with important vehicle information at a glance.
The base cluster consists of a speedometer,
tachometer, temperature gauge, oil pressure warning
light, battery voltage warning light and fuel gauge with
the DIC in the lower middle.

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Page 13

The powerful OnStar® connection also enables
improved access to existing OnStar® safety and
security services, including the ability to transmit voice
and data simultaneously. That means OnStar®
advisors can run a diagnostic check without ever
leaving the call, making customer interactions quicker
and more seamless. It’s the most comprehensive
in-vehicle safety and connectivity system available.
For assistance, press the blue OnStar® button or call
1-888-4-ONSTAR (1-888-466-7827).

Radio with IntelliLink®

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Radio — 7 Inch Diagonal Color Touch
Offered as the base radio, the 7 inch (178 mm) diagonal
color touch radio with IntelliLink® capacitive touch
display make the drive an inspired experience. Apple®
CarPlay™ and Android™ Auto compatibility with
compatible smartphone.
This radio features:
• Simple, affordable method of connectivity.
• Relies on customer’s brought-in media.
• Physical buttons and knobs.
• Icon based user interface.
• Wi-Fi signal type, strength display and connection
settings.
Radio — 8 Inch Diagonal Color Touch

4497790

The Uplevel cluster consists of a digital speedometer,
tachometer, temperature gauge, oil pressure gauge,
battery voltage gauge and fuel gauge with an
interactive display area in the center of the instrument
cluster. There are other lamps and indicators near each
of the turn signal indicator lamps and at the bottom of
the IPC.

OnStar® with 4G LTE and Wi-Fi (Not
Available in All Exported Countries)
With OnStar® 4G LTE and Wi-Fi, up to seven devices
such as smartphones, tablets and laptops can be
connected to high-speed Internet through the vehicle’s
built-in Wi-Fi hotspot.
To retrieve the SSID and password for the hotspot,
press the OnStar® Voice Command button on the
overhead console or rearview mirror, wait for the
prompt, and then say “Wi-Fi Settings.” The information
will be displayed on the screen.

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The 8 inch (203 mm) diagonal color touch radio with
IntelliLink® capacitive touch display make the drive an
inspired experience. Apple® CarPlay™ and Android™
Auto compatibility with compatible smartphone.
This radio features:
• Blend of embedded and customer brought-in
media functionality.
• Fast accurate voice recognition including
partial name.
• Gesture recognition.
• Customizable options.

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May, 2016

Wi-Fi signal type, strength display and connection
settings.
Available navigation. (Not all countries).

Bluetooth® System
Before using a Bluetooth® enabled device in the
vehicle, it must be paired with the in-vehicle Bluetooth®
system. The pairing process is disabled when the
vehicle is moving. Not all devices will support all
functions. Bluetooth® streaming audio is available with
the IntelliLink® system.
Portable Audio Devices
A USB port is located at the front of the center console.
An Apple® iPod®, iPhone®, MP3 Player, a USB flash
drive or a USB mass storage device can be connected
to the USB port. Compatible devices connected to the
USB port can be controlled by the audio system. Not all
devices may be supported. Use the audio controls and
audio steering wheel controls to access various
functions.

Safety — Airbag System
Airbag Readiness Light
This light illuminates and stays ON if there is an
electrical problem with the airbag system. The system
check includes the airbag sensors, passenger sensing
system, the pretensioners, the airbag modules, the
wiring, and the crash sensing and diagnostic module
(SDM). The airbag readiness light turns ON for several
seconds when the vehicle is started. If the light does
not turn ON and then OFF, have it repaired
immediately.
Airbag Locations
All vehicle airbags have the word AIRBAG on the trim
or on a label near the deployment opening. The airbags
are located in the following positions:
– A frontal airbag for the driver.
– A frontal airbag for the front outboard passenger.
– A knee airbag for the driver.
– A front center airbag for the driver and front outboard
passenger.
– Seat-mounted side impact airbag for the driver.
– Seat-mounted side impact airbag for the front
outboard passenger.
– A roof-rail airbag for the driver and for the second
and third row passengers seated directly behind the
driver.
– A roof-rail airbag for the front outboard passenger
and the second and third row passengers seated
directly behind the front outboard passenger.

Bulletin No.: 16-NA-135

Safety — Driving/Parking Assistance
Systems
If equipped, these systems may help the driver to park
and/or to avoid other vehicles, objects, pedestrians and
animals.
• Active Tow: This feature displays a single,
centered guideline on the camera display to assist
with aligning a vehicle’s hitch bar with a trailer
coupler. Select the trailer guidance line button,
then align the trailer guidance line over the trailer
coupler. Continuously steer the vehicle to keep the
guidance line centered on the coupler when
backing. RVC Parking Assist overlays will not
display when the trailer guidance line is active.
• Adaptive Cruise Control: Adaptive Cruise
Control (ACC), it allows the driver to select the
cruise control set speed and following gap. The
following gap is the following time between your
vehicle and a vehicle detected directly ahead in
your path, moving in the same direction. If no
vehicle is detected in your path, ACC works like
regular cruise control. Turning OFF the TCS or
StabiliTrak® system will disengage the cruise
control.
• Forward Automatic Braking: If the vehicle has
FCA, it also has Forward Automatic Braking
(FAB), which includes Intelligent Brake Assist
(IBA). When the system detects a vehicle ahead in
your path that is traveling in the same direction
that you may be about to crash into, it can provide
a boost to braking or automatically brake the
vehicle. This can help avoid or lessen the severity
of crashes when driving in a forward gear.
Depending on the situation, the vehicle may
automatically brake moderately or hard. This
forward automatic braking can only occur if a
vehicle is detected. This is shown by the FCA
vehicle ahead indicator being illuminated.
• Forward Collision Alert: The Forward Collision
Alert (FCA) system may help to avoid or reduce
the harm caused by front-end crashes. When
approaching a vehicle ahead too quickly, FCA
provides a red flashing alert on the windshield and
rapidly beeps or pulses the driver seat. FCA also
lights an amber visual alert if following another
vehicle much too closely. FCA detects vehicles
within a distance of approximately 197 ft (60 m)
and operates at speeds above 25 mph (40 km/h).
If the vehicle has Adaptive Cruise Control (ACC),
it can detect vehicles to distances of
approximately 360 ft (110 m) and operates at all
speeds.

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May, 2016
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Lane Keep Assist: Lane Keep Assist (LKA) may
assist the driver by gently turning the steering
wheel if the vehicle approaches a detected lane
marking without using a turn signal in that
direction. It may also provide a Lane Departure
Warning (LDW) system alert as the lane marking
is crossed. The LKA system will not assist or
provide an LDW alert if it detects that the driver is
actively steering.

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Front Pedestrian Braking: The Front Pedestrian
Braking (FPB) system may help avoid or reduce
the harm caused by front end crashes with nearby
pedestrians when driving in a forward gear. FPB
displays an amber pedestrian indicator when a
nearby pedestrian is detected directly ahead.
When approaching a detected pedestrian too
quickly, FPB provides a red flashing alert on the
windshield and rapidly beeps or pulses the driver
Safety Alert Seat. FPB can provide a boost to
braking or automatically brake the vehicle. The
FPB system can detect and alert to pedestrians in
a forward gear at speeds between 5 mph (8 km/h)
and 50 mph (80 km/h). During daytime driving, the
system detects pedestrians up to a distance of
approximately 131 ft (40 m). If FPB detects it is
about to crash into a pedestrian directly ahead,
and the brakes have not been applied, FPB may
automatically brake moderately or hard. During
nighttime driving, system performance is very
limited.
Front Vision Camera: The Front Vision Camera
provides a view of the area in front of the vehicle.
The view displays after shifting from R to a forward
gear, or by touching CAMERA in the infotainment
display, and when the vehicle is moving forward
slower than 5 mph (8 km/h). The Front Vision
Camera also displays when the Parking Assist
system detects an object within 12 in (30 cm).
Lane Change Alert: The Lane Change Alert
(LCA) system provides outside side mirror alerts
to help the driver avoid crashing into a moving
vehicle detected in their side blind spot (or zone)
or a vehicle that is rapidly approaching their blind
spot during a lane change maneuver.
Lane Departure Warning: Lane Departure
Warning (LDW) may help avoid crashes due to
unintentional lane departures. It may provide a
warning if the vehicle is crossing a detected lane
marking without using a turn signal in the lane
departure direction. This system is part of the
Lane Keep Assist (LKA) system.

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Parking Assist: With RPA, and if equipped with
FPA, as the vehicle moves at speeds of less than
5 mph (8 km/h) the sensors on the bumpers may
detect objects up to 8 ft (2.5 m) behind the vehicle
and 4 ft (1.2 m) in front of the vehicle within a zone
10 in (25 cm) high off the ground and below
bumper level. The Parking Assist system does not
detect children, pedestrians, bicyclists, animals, or
objects located below the bumper or that are too
close or too far from the vehicle. The instrument
cluster may have a parking assist display with
bars that show “distance to object” and object
location information for the Parking Assist system.
As the object gets closer, more bars light up and
the bars change color from yellow to amber to red.
Rear Cross Traffic Alert: Rear Cross Traffic
Alert (RCTA) displays a red warning triangle with a
left or right pointing arrow on the RVC screen to
warn of traffic coming from the left or right. This
system detects objects coming from up to 65 ft
(20 m) from the left or right side of the vehicle.
When an object is detected, either three beeps
sound from the left or right or three Safety Alert
Seat pulses occur on the left or right side,
depending on the direction of the detected vehicle.
Use caution while backing up when towing a
trailer, as the RCTA detection zones that extend
out from the back of the vehicle do not move
further back when a trailer is towed.
Rear Parking Assist : Rear Parking Assist (RPA)
uses sensors on the rear bumper to assist with
parking and avoiding objects while in R
(Reverse). It operates at speeds less than 5 mph

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May, 2016

Bulletin No.: 16-NA-135

(8 km/h). RPA may display a warning triangle on
the Rear Vision Camera screen and a graphic on
the instrument cluster to provide the object
distance. In addition, multiple beeps or seat
pulses may occur if very close to an object.
Rear Vision Camera: When the vehicle is shifted
into R (Reverse), the Rear Vision Camera (RVC)
displays an image of the area behind the vehicle
in the infotainment display. The previous screen
displays when the vehicle is shifted out of R after a
short delay. To return to the previous screen
sooner, press a button on the infotainment display,
shift into P (Park), or reach a vehicle speed of
5 mph (8 km/h). Select Front or Rear Camera on
the camera screen to view the front or rear camera
views. Select Guidance Lines on the camera
screen to enable or disable the guidance lines.
Safety Alert Seat: The Safety Alert Seat provides
the driver the option of getting haptic seat-bottom
vibration crash avoidance alerts or beeping. To
change from one to the other, see “Comfort and
Convenience” under Vehicle Personalization in
the Owner Manual.
Side Blind Zone Alert: The Side Blind Zone Alert
(SBZA) system is a lane changing aid that assists
drivers with avoiding crashes that occur with
moving vehicles in the SBZA (or spot) areas.
When the vehicle is in a forward gear, the left or
right side mirror display will light up if a moving
vehicle is detected in that blind zone. If the turn