Fiat 500 Owner's Handbook Manual page 17

Start&Stop SYSTEM DEACTIVATION (for versions/markets, where provided)
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The Start&Stop system deactivation is indicated by the warning light switching on or by the symbol on the display, on some
versions together with a dedicated message shown on the display.
START&STOP SYSTEM ACTIVE (for versions/markets, where provided)
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This warning light switches on with steady light, on some versions along with a dedicated message on the display, to
indicate the Start&Stop system activation.
START&STOP SYSTEM FAILURE (versions with colour display) (for versions/markets, where provided)
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The symbol switches on, on some versions along with a dedicated message on the display, to indicate the Start&Stop
system failure. Contact a Fiat Dealership as soon as possible.
INJECTION / EOBD SYSTEM FAILURE
Under normal conditions, the warning light comes on when the ignition key is turned to MAR, but should go off as soon as
the engine is started.
If the warning light remains on or switches on whilst driving, on some versions together with a dedicated message on the
display, the injection system is not working properly; in particular, if the warning light switches on steadily, this indicates a
malfunction in the supply/ignition system that could cause excessive exhaust emissions, a possible loss of performance,
poor driveability and high fuel consumption.
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Under these conditions, you may continue travelling at a moderate speed without demanding excessive effort from the
engine.
Prolonged use of the car with the warning light on may cause damage. Contact a Fiat Dealership as soon as possible.
Petrol engines only
If the warning light flashes, this indicates potential catalytic converter damage.
If the warning light switches on flashing, it is necessary to release the accelerator pedal to lower the speed of the engine
until the warning light stops flashing; continue the journey at a moderate speed, trying to avoid driving conditions that may
cause further flashing and contact a Fiat Dealership as soon as possible.
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