Acura 2011 ZDX - Manual (Page 597)

If this indicator comes on
while driving, it means one
of the engine's emissions control
systems may have a problem. Even
though you may feel no difference in
your vehicle's performance, it can
reduce your fuel economy and cause
increased emissions. Continued
operation may cause serious damage.
If you have recently refueled your
vehicle, the indicator coming on
could be due to a loose or missing
fuel fill cap. You will also see a
‘‘TIGHTEN FUEL CAP’’ message on
the multi-information display.
Tighten the cap until it clicks at least
once. Tightening the cap will not turn
the indicator off immediately; it can
take several days of normal driving.
If the indicator comes on repeatedly,
even though it may turn off as you
continue driving, have your vehicle
checked by the dealer as soon as
possible.
If you keep driving with the malfunction
indicator lamp on, you can damage
your vehicle's emissions controls and
engine. Those repairs may not be
covered by your vehicle's warranties.
You will also see a ‘‘CHECK
EMISSION SYSTEM ’’ message on
the multi-information display (see
page
90 ).
Readiness Code
Your vehicle has certain
‘‘readiness
codes ’’ that are part of the on-board
diagnostics for the emissions systems.
In some states, part of the emissions
testing is to make sure these codes are
set. If they are not set, the test cannot
be completed.
If the battery in your vehicle has been
disconnected or gone dead, these
codes may be erased. It takes several
days of driving under various
conditions to set the codes again.
To check if they are set, turn the
ignition switch to the ON (II) position
(set ON mode on models with keyless
access system), without starting the
engine. The malfunction indicator lamp
will come on for 20 seconds. If it then
goes off, the readiness codes are set. If
it blinks five times, the readiness codes
are not set. If possible, do not take your
vehicle for an emissions test until the
readiness codes are set. Refer to
Emissions Testing for more
information (see page
619 ).
Malfunction Indicator Lamp
593
Taking
Care
of
the
Unexpected
10/07/06 18:05:30 11 ACURA ZDX KA KC MMC North America Own 50 31SZN610 enu
2011 ZDX