2015 Hyundai Sonata Hybrid check engine light

465
Features of your vehicle
Shift to "P" to start engine
If you try to start the engine with the shift
lever not in P(Park), the warning illumi-
nates for 10 seconds on the LCD screen.
Low tire pressure
When one or more of your tires is signifi-
cantly under-inflated, the warning light
comes on.
The low tire pressure telltale will illumi-
nate after it blinks for approximately one
minute when there is a problem with the
Tire Pressure Monitoring System.
If this occurs, have the system checked
by an authorized HYUNDAI dealer as
soon as possible.
For details, refer to the TPMS on chapter 6.
Low washer fluid
This warning light indicates the washer
fluid reservoir is near empty. Refill the
washer fluid as soon as possible.
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Features of your vehicle
66
4
Check brake
If the 'Check brake' is displayed this indi-
cates there may be a malfunction with
the brake system or with the regenerative
brake system. Refer to page 4-56 for the
related information. Have the system
checked by an authorized HYUNDAI
dealer as soon as possible.
Check charging system
This warning will illuminate along with an
indicator light and warning chime if there
is a malfunction with the LDC (Low volt-
age DC inverter) system.
✽ ✽
NOTICE
The 'Check Charging system' warning
may occur when the battery voltage
level is too low. However, once the bat-
tery is charged by the engine, the warn-
ing may turn off.
Check active air flap system
This warning will be illuminated as fol-
lows:
- If an actuator flap malfunction is detected
- If an actuator air flap controller mal-
function is detected
- If the air flap does not open when required.
When all the conditions causing the warn-
ing to be illuminated have been cleared,
the warning will turn off.
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WARNING
Driving with the 'check brake' on is
dangerous. Have the system
checked by an authorized HYUNDAI
dealer as soon as possible.

469
Features of your vehicle
Hybrid battery low! Do not startengine
If the engine does not start and SOC
(State Of Charge) is very low, a message
“Hybrid battery low! Do not start engine”
will appear on the LCD display. Also, the
chime will sound until the problem is
resolved.
Have the vehicle towed to an authorized
HYUNDAI dealer to inspect the hybrid
system and the engine. The rearview camera will activate when
the back-up light is ON with the engine
start/stop button ON and the shift lever in
the R position.
This system is a supplemental system
that shows behind the vehicle through
the monitor while backing-up.✽ ✽
NOTICE
The rearview camera may not operate
normally, in extremely high or low
temperatures (operating temperature :
-13°F~149°F (-20°C~65°C)).
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REAR VIEW CAMERA (IF EQUIPPED)
WARNING
This system is a supplementary
function only. It is the responsi-
bility of the driver to always
check the inside/outside rearview
mirror and the area behind the
vehicle before and while backing
up.
Always keep the camera lens clean. If the lens is covered with
foreign matter, the camera may
not operate normally.
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53
Driving your vehicle
Before entering vehicle
• Be sure that all windows, outside mir-ror(s), and outside lights are clean.
Check the condition of the tires.
Check under the vehicle for any sign of leaks.
Be sure there are no obstacles behind you if you intend to back up.
Necessary inspections
Fluid levels, such as engine oil, engine
coolant, brake fluid, and washer fluid
should be checked on a regular basis,
with the exact interval depending on the
fluid. Further details are provided in sec-
tion 7, “Maintenance”.
BEFORE DRIVING
CALIFORNIA PROPOSI-
TION 65 WARNING
Engine exhaust and a wide variety
of automobile components and
parts, including components found
in the interior furnishings in a vehi-
cle, contain or emit chemicals
known to the State of California to
cause cancer and birth defects and
reproductive harm. In addition, cer-
tain fluids contained in vehicles
and certain products of component
wear contain or emit chemicals
known to the State of California to
cause cancer and birth defects or
other reproductive harm.
WARNING
Driving while distracted can result
in a loss of vehicle control, that
may lead to an accident, severe
personal injury, and death. The dri-
ver’s primary responsibility is in
the safe and legal operation of a
vehicle, and use of any handheld
devices, other equipment, or vehi-
cle systems which take the driver’s
eyes, attention and focus away
from the safe operation of a vehicle
or which are not permissible by law
should never be used during oper-
ation of the vehicle.

Driving your vehicle
45
Before starting
Close and lock all doors.
Position the seat so that all controls areeasily reached.
Adjust the inside and outside rearview mirrors.
Be sure that all lights work.
Check all gauges.
Check the operation of warning lights when the engine start/stop button is
turned to the ON position.
Release the parking brake and make sure the brake warning light goes out.
For safe operation, be sure you are famil-
iar with your vehicle and its equipment.
WARNING- Driving under
the influence of alcohol or
drugs
Drinking and driving is dangerous.
Drunk driving is the number one
contributor to the highway death
toll each year. Even a small amount
of alcohol will affect your reflexes,
perceptions and judgment. Driving
while under the influence of drugs
is as dangerous or more dangerous
than driving drunk.
You are much more likely to have a
serious accident if you drink or
take drugs and drive.
If you are drinking or taking drugs,
don’t drive. Do not ride with a driv-
er who has been drinking or taking
drugs. Choose a designated driver
or call a cab.
WARNING
All passengers must be properly
belted whenever the vehicle is mov-
ing. Refer to “Seat belts” in section
3 for more information on their
proper use.
WARNING
Always check the surrounding
areas near your vehicle for people,
especially children, before putting a
car into D (Drive) or R (Reverse).
WARNING
When you intend to park or stop
the vehicle with the engine on, be
careful not to depress the acceler-
ator pedal for a long period of
time. It may overheat the engine or
exhaust system and cause a fire.
When you make a sudden stop or turn the steering wheel rapidly,
loose objects may drop on the
floor and it could interfere with
the operation of the foot pedals,
possibly causing an accident.
Keep all things in the vehicle
safely stored.
If you do not focus on driving, it may cause an accident. Be care-
ful when operating controls while
driving such as the audio or
heater. It is the responsibility of
the driver to always drive safely.

55
Driving your vehicle
Illuminated engine start/stop but-
ton
Whenever the front door is opened, the
engine start/stop button will illuminate for
your convenience. The light will go off
after about 30 seconds when the door is
closed.
HEV system start/stop button
position
OFF
To turn off the system, press the engine
start/stop button with the engine
start/stop button in the ON position and
the shift lever in P(Park). When you press
the engine start/stop button without the
shift lever in P(Park), the engine
start/stop button does not turn to the OFF
position, but turns to the ACC position.
✽ ✽NOTICE
Before turning off the HEV system, the
vehicle should be stopped.
ACC(Accessory)
Press the HEV system start/stop button
while it is in the OFF position without
depressing the brake pedal.
The electrical accessories are operative.
If you leave the HEV system start/stop
button in the ACC position for more than
1 hour, the battery power will turn off
automatically to prevent the battery from
discharging.
ON
Press the HEV system start/stop button
while the button is in the ACC position
without depressing the brake pedal.
The warning lights can be checked
before the HEV system is started. Do not
leave it in the ON position if the HEV sys-
tem is not running to prevent battery dis-
charge.
START
To start the hybrid system, press the
brake pedal and press the HEV system
start/stop button with the shift lever in the
P(Park) position.
ENGINE START/STOP BUTTON
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WARNING
In an emergency situation while the
vehicle is moving, you can turn off
the engine and turn the engine
start/stop button to the ACC position
by pressing the engine start/stop
button for more than 2 seconds or 3
times successively within 3 sec-
onds. If the vehicle is moving over
10km/h, you can restart the engine
without pressing the brake pedal by
pressing the engine start/stop but-
ton regardless of transaxle position.

517
Driving your vehicle
If the parking brake does not release or
does not release all the way, have the
system checked by an authorized
HYUNDAI dealer.Check the brake warning light by pressing
the engine start/stop button ON (do not
start the engine). This light will be illumi-
nated when the parking brake is applied
with the engine start/stop button in the
START or ON position.
Also, the brake warning light may illumi-
nate for a second even though the park-
ing brake is released at the moment the
engine start/stop button is pressed to the
ON position.
Before driving, be sure the parking brake
is fully released and the brake warning
light is off.
If the brake warning light remains on after
the parking brake is released while the
hybrid system is in READY state, there
may be a malfunction in the brake sys-
tem. Immediate attention is necessary.If at all possible, cease driving the vehicle
immediately. If that is not possible, use
extreme caution while operating the vehi-
cle and only continue to drive the vehicle
until you can reach a safe location or
repair shop.
WARNING
To prevent unintentional move-
ment when stopped and leaving
the vehicle, do not use the
gearshift lever in place of the
parking brake. Set the parking
brake AND make sure the
gearshift lever is securely posi-
tioned in P (Park) for automatic
transaxle equipped vehicles.
Never allow anyone who is unfa- miliar with the vehicle to touch
the parking brake. If the parking
brake is released unintentionally,
serious injury may occur.
All vehicles should always have the parking brake fully engaged
when parking to avoid inadver-
tent movement of the vehicle
which can injure occupants or
pedestrians.
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WARNING
It is normal for the brake warninglight to illuminate temporarily
when the brake is depressed
repeatedly and go out after a few
seconds when the brake is no
longer depressed. However, if the
brake warning light turns on, this
may be a sign of a malfunctioning
brake system and could cause
the braking distance to increase.
Have your system checked if the brake warning light remains on. A
malfunctioning brake system
could result in a vehicle accident
and serious injury or death.

519
Driving your vehicle
✽
✽NOTICE
When you jump start your vehicle
because of a drained battery, the engine
may not run as smoothly and the ABS
warning light may turn on at the same
time. This happens because of the low
battery voltage. It does not mean your
ABS is malfunctioning.
• Do not pump your brakes!
• Have the battery recharged before
driving the vehicle.
Electronic stability control (ESC)
The Electronic Stability control (ESC)
system is designed to stabilize the vehicle
during cornering maneuvers. ESC checks
where you are steering and where the
vehicle is actually going. ESC applies the
brakes at individual wheels and
intervenes in the engine management
system to stabilize the vehicle.
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CAUTION
If the ABS warning light is on and
stays on, you may have a problemwith the ABS. In this case, howev-er, your regular brakes will worknormally.
The ABS warning light will stay on for approximately 3 seconds afterthe engine start/stop button is ON.During that time, the ABS will gothrough self-diagnosis and thelight will go off if everything is nor-mal. If the light stays on, you mayhave a problem with your ABS.Contact an authorized HYUNDAIdealer as soon as possible.
CAUTION
When you drive on a road having poor traction, such as an icy road,and operate your brakes continu-ously, the ABS will be active con-tinuously and the ABS warning light may illuminate. Pull your carover to a safe place and stop theengine.
Restart the engine. If the ABS warning light is off, then yourABS system is normal.Otherwise, you may have a prob-lem with the ABS. Contact anauthorized HYUNDAI dealer assoon as possible.
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