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64Instruments and controls
Control indicator Y illuminates if the
level in the tank is low. Refuel
immediately if it flashes.
Never run the fuel tank dry.
Because of the fuel remaining in the
tank, the top-up quantity may be less
than the specified tank capacity.
Engine coolant temperature
gauge
Number of LEDs displays the coolant temperature.
up to 2 LEDs:engine operating
temperature not
yet reached3 to 6 LEDs:normal operating
temperaturemore than 6
LEDs:temperature too
highCaution
If engine coolant temperature is
too high, stop vehicle, switch off
engine. Danger to engine. Check
coolant level.
Service display
The engine oil life system informs
when to change the engine oil and
filter. Based on driving conditions, the interval at which an engine oil and
filter change will be indicated can vary
considerably.
When the system has calculated that
engine oil life has been diminished, a warning message appears in theDriver Information Centre. Have
engine oil and filter changed by a
workshop within one week or
300 miles, whichever occurs first.
This can be an additional engine oil
and filter change or part of a regular
service.
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Instruments and controls85SOS button
Press [ to establish a priority
emergency connection to a specially
trained emergency advisor.
Status LED
Green: The system is ready with activated transmission of the vehicle
location.
Green flashing: The system is on a
call.
Red: A problem arose.
Off: The system is ready with
deactivated transmission of the
vehicle location or the system is in
standby mode.
Red / green flashing for a short period
of time: The transmission of the
vehicle location has been
deactivated.
OnStar services
General services
If you need any information e.g.
opening hours, points of interest and
destinations or if you need any
support e.g. in the case of a vehiclebreakdown, a flat tyre and empty fuel
tank, press Z to establish a
connection to an advisor.
Emergency services
In the case of an emergency situation,
press [ and talk to an advisor. The
advisor then contacts emergency or
assistance service providers and
directs them to your vehicle.
In the case of an accident with
activation of airbags or belt
tensioners, an automatic emergency
call is established. The advisor is
immediately connected to your
vehicle to see whether help is
needed.
Wi-Fi hotspot
The Wi-Fi hotspot of the vehicle
provides internet connectivity with a
maximum speed of 4G/LTE.
Notice
The Wi-Fi hotspot functionality is not available for all markets.
Notice
Some mobile devices connect to Wi-
Fi hotspots automatically and use
mobile data capacity in thebackground, even if they are not in
use. This includes automatic
updates, downloads, as well as
programme or app synchronisation
traffic. The data volume purchased
via OnStar might be consumed
rapidly. Turn off automatic
synchronisations in the settings of
your device.
Up to seven devices may be
connected.
To connect a mobile device with the
Wi-Fi hotspot:
1. Press j and then select Wi-Fi
settings on the Info Display. The settings displayed include the Wi- Fi hotspot name (SSID),
password and connection type.
2. Start a Wi-Fi network search on your mobile device.
3. Select your vehicle hotspot (SSID) when listed.
4. When prompted, enter the password on your mobile device.
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120Driving and operatingThe system can not operate when no
lane marking is detected.Fuel
Fuel for petrol engines
Only use unleaded fuel that complies
with European standard EN 228 or
equivalent.
The engine is capable of running with
fuel that contains up to 10% ethanol
(e.g. named E10).
Use fuel with the recommended
octane rating. A lower octane rating can reduce engine power and torque
and slightly increases fuel
consumption.
Caution
Do not use fuel or fuel additives
that contain metallic compounds
such as manganese-based
additives. This may cause engine
damage.
Caution
Use of fuel that does not comply to EN 228 or equivalent can lead todeposits or engine damage.
Caution
Use of fuel with a lower octane
rating than the lowest possible
rating could lead to uncontrolled combustion and engine damage.
The engine specific requirements
regarding octane rating are given in
the engine data overview 3 169. A
country specific label at the fuel filler
flap can supersede the requirement.
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122Driving and operating9Danger
Fuel is flammable and explosive.
No smoking. No naked flames or
sparks.
If you can smell fuel in your
vehicle, have the cause of this
remedied immediately by a
workshop.
A label with symbols at the fuel filler
flap is indicating the allowed fuel
types. In Europe the pump nozzles of the filling stations are marked with
these symbols. Refuel only the
allowed fuel type.
Caution
In case of misfuelling, do not
switch on ignition.
1. Stop the engine.
2. Pull up the fuel filler flap release lever located on the floor, left front
side of driver's seat.
The fuel filler flap is located at right
rear side of the vehicle.
3. Turn the fuel filler cap counterclockwise slowly. If a
hissing sound is heard, wait for it
to stop before completely
unscrewing the cap.
4. Remove the cap. The cap is tethered to the vehicle.
5. Place the nozzle in straight position to the filler neck and
press with slight force to insert.
To refuel, switch on pump nozzle. After the automatic cut-off, the
tank can be topped up by
operating the pump nozzle a
maximum of two more times.Caution
Wipe off any overflowing fuel
immediately.
6. To close, turn the fuel filler cap clockwise until it clicks.
7. Push the fuel filler flap closed until
it latches.
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Driving and operating123Notice
If, in cold weather, the fuel filler door
does not open, tap the door lightly.
Then try to open it again.
Fuel filler cap
Only use genuine fuel filler caps.