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Illumination of the service engine soon
indicator, charging system warning light or
the temperature warning light, fluid leaks,
strange odors, smoke or loss of engine power
could indicate that the emission control
system is not working properly.
An improperly operating or damaged exhaust
system may allow exhaust to enter the
vehicle. Have a damaged or improperly
operating exhaust system inspected and
repaired immediately.
Do not make any unauthorized changes to
your vehicle or engine. By law, vehicle owners
and anyone who manufactures, repairs,
services, sells, leases, trades vehicles, or
supervises a fleet of vehicles are not
permitted to intentionally remove an
emission control device or prevent it from
working. Information about your vehicle’s
emission system is on the Vehicle Emission
Control Information Decal located on or near
the engine. This decal also lists engine
displacement
Please consult your warranty information for
complete details.
On-Board Diagnostics (OBD-II)
Your vehicle is equipped with an on-board
diagnostics system (OBD-II) that monitors
the engine’s emission control system. This
system protects the environment by ensuring
that your vehicle continues to meet
government emission standards. The OBD-II
system also assists your authorized dealer in
properly servicing your vehicle.
When the service engine soon
indicator illuminates, the OBD-II
system has detected a
malfunction. Temporary malfunctions may
cause the service engine soon indicator to
illuminate.
Examples of temporary malfunctions are:
• the vehicle has run out of fuel—the engine
may misfire or run poorly
• poor fuel quality or water in the fuel—the
engine may misfire or run poorly
• the fuel fill inlet may not have been
properly closed See Refueling (page 134).
• driving through deep water—the electrical
system may be wet.
You can correct these temporary
malfunctions by filling the fuel tank with good
quality fuel, properly closing the fuel fill inlet
or letting the electrical system dry out. After
three driving cycles without these or any
other temporary malfunctions present, the
service engine soon indicator should stay off
the next time you start the engine. A driving
cycle consists of a cold engine startup
followed by mixed city/highway driving. No
additional vehicle service is required.
If the service engine soon indicator remains
on, have your vehicle serviced at the first
available opportunity. Although some
malfunctions detected by the OBD-II may
not have symptoms that are apparent,
continued driving with the service engine
soon indicator on can result in increased
emissions, lower fuel economy, reduced
engine and transmission smoothness, and
lead to more costly repairs.
137
MKS (), enUSA
Fuel and Refueling
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