Page 2 of 345

Contents
Child Safety P. 50 Exhaust Gas Hazard P. 62 Safety Labels P. 63
Opening and Closing the Trunk P. 109 Security System P. 112 Opening and Closing the Windows P. 114 
Operating the Switches Around the Steering Wheel P. 117 Adjusting the Mirrors P. 125 
Interior Lights/Interior Convenience Items P. 134 Heating and Cooling*
 P. 140
Audio Error Messages *
 P. 172 General Information on the Audio System *
 P. 174
When Driving P. 211 Braking P. 229 Parking Your Vehicle P. 233 
Accessories and Modifications P. 238
Maintenance Under the Hood P. 251 Replacing Light Bulbs P. 268 
Checking and Maintaining Tires P. 280 Battery P. 289 Remote Transmitter Care *
 P. 290
Cleaning P. 292
Engine Does Not Start P. 306 Jump Starting P. 307 Shift Lever Does Not Move P. 310 
Fuses P. 318 Emergency Towing P. 321
Devices that Emit Radio Waves P. 329 Reporting Safety Defects P. 330 
Authorized Manuals P. 335 Customer Service Information P. 336
Quick Reference GuideP. 2
Safe DrivingP. 23
Instrument PanelP. 65
ControlsP. 97
FeaturesP. 143
DrivingP. 201
MaintenanceP. 239
Handling the UnexpectedP. 297
InformationP. 323
IndexP. 337
2012 Civic 4D Online Reference Owner's Manual
Note: All page numbers referenced in this document are hyperlinked. 
     
        
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8
Quick Reference GuideSafe Driving (P 23)
Airbags (P 35)
● Your vehicle is fitted with airbags to help protect you and  
your passengers during a moderate-to-severe collision.
Child Safety  (P 50)
● All children 12 and younger should be seated in the rear seat.
● Smaller children should be properly restrained in a forward-facing child seat.
● Infants must be properly restrained in a rear-facing child seat.
Exhaust Gas Hazard  (P 62)
● Your vehicle emits dangerous exhaust gases that contain carbon  
monoxide. Do not run the engine in confined spaces where carbon  
monoxide gas can accumulate.
Before Driving Checklist  (P 27)
● Before driving, check that the front seats, head restraints,  
steering wheel, and mirrors have been properly adjusted. Seat Belts 
(P 28)
● Fasten your seat belt and sit upright well  
back in the seat.
● Check that your passengers are wearing  
their seat belts correctly.
Fasten your lap belt as  
low as possible.  
     
        
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17
Quick Reference GuideMaintenance (P 239)
Under the Hood (P 251)
● Check engine oil, engine coolant, and windshield washer  
fluid. Add when necessary.
● Check brake fluid and clutch fluid.
● Check the battery regularly.
a Pull the hood release handle under the corner of the  
dashboard.
b Locate the hood latch lever, pull the lever up, and lift up 
the hood.
c When finished, close the hood and make sure it is firmly 
locked in place.
Lights  (P 268)
● Inspect all lights regularly.
Wiper Blades 
(P 278)
● Replace blades if they leave streaks  
across the windshield.
Tires  (P 280)
● Inspect tires and wheels regularly.
● Check tire pressures regularly.
● Install snow tires for winter 
driving.
* Not available on all models       
     
        
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18
Quick Reference GuideHandling the Unexpected (P 297)
Flat Tire  (P 299)
● Park in a safe location and replace the  
flat tire with the compact spare tire in the  
trunk.
Indicators Come On  
(P 313) ● Identify the indicator and consult the  
owner's manual.
Engine Won't Start  
(P 306) ●If the battery is dead, jump start using a  
booster battery.
Blown Fuse  (P 318)
● Check for a blown fuse if an electrical  
device does not operate.Overheating  (P 311)
● Park in a safe location. If you do not see  
steam under the hood, open the hood,  
and let the engine cool down.
Emergency Towing  
(P 321) ● Call a professional towing service if you  
need to tow your vehicle.          
     
        
        Page 67 of 345

66
Instrument Panel
Indicators
IndicatorNameOn/BlinkingExplanationMessage*
Parking Brake  and Brake  
System Indicator
●
Comes on for a few seconds when  
you turn the ignition switch to ON 
(w , then goes off.
● Comes on when the parking brake  
is applied, and goes off when it is  released.
● Comes on when the brake fluid  
level is low.
● Comes on if there is a problem 
with the brake system.
● The beeper sounds and the  
indicator comes on if you drive  
with the parking brake not fully released.
●
Comes on while driving  - Make sure 
the parking brake is released. Check the  
brake fluid level. 2What to do when the indicator  
comes on  P. 315
● Comes on along with the ABS  
indicator  - Have the vehicle checked by a 
dealer. 2If the Brake System Indicator Comes  On  P. 315
Low Oil Pressure  
Indicator
●
Comes on when you turn the  
ignition switch to ON 
(w , and goes 
off when the engine starts.
● Comes on when the engine oil  
pressure is low.
● Comes on while driving  - Immediately 
stop in a safe place. 2If the Low Oil Pressure Indicator  
Comes On  P. 313
U.S.
Canada
* Not available on all models     
     
        
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67
uuIndicatorsu
Continued
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage*
Malfunction  
Indicator Lamp
●
Comes on when you turn the  
ignition switch to ON 
(w , and goes 
off either when the engine starts or  
after several seconds if the engine 
is not started. If "readiness codes"  
have not been set, it blinks five  
times before it goes off.
● Comes on if there is a problem  
with the emissions control system.
● Blinks when a misfire in the  
engine's cylinders is detected.
● Readiness codes are part of the on board  
diagnostics for the emissions control  
systems.
2Testing of Readiness Codes  P. 331
● Comes on while driving  - Have the 
vehicle checked by a dealer.
● Blinks while driving  - Stop in a safe 
place where there are no flammable  
objects. Stop the engine for 10 minutes 
or more, and wait for it to cool down.  
Then, take the vehicle to a dealer. 2If the Malfunction Indicator Lamp  
Comes On or Blinks  P. 314
Charging System  
Indicator
●
Comes on when you turn the  
ignition switch to ON 
(w , and goes 
off when the engine starts.
● Comes on when the battery is not  charging.
● Comes on while driving  - Turn off the 
heating and cooling *
 system and rear 
defogger in order to reduce electricity  
consumption. 2If the Charging System Indicator  
Comes On  P. 313
Shift Position  
Indicator*●
Indicates in which position your  shift lever is.2 Shifting  P. 215—
Indicator
* Not available on all models   
     
        
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69
uuIndicatorsu
Continued
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage*
ABS (Anti-lock  
Brake System)  
Indicator
●
Comes on for a few seconds when  
you turn the ignition switch to ON 
(w , then goes off.
● If it comes on at any other time, there  
is a problem with the ABS.
● Stays on constantly  - Have the 
vehicle checked by a dealer. With this  
indicator on, your vehicle still has  
normal braking ability but no anti-lock 
function. 2ABS (Anti-lock Brake System)  
P. 231
Supplemental  
Restraint System 
Indicator
● Comes on for a few seconds when  
you turn the ignition switch to ON 
(w , then goes off.
● Comes on if a problem with any of  
the following is detected:-Supplemental restraint system
- Side airbag system
- Side curtain airbag system
- Seat belt tensioner
●
Stays on constantly or does not  
come on at all  - Have the vehicle 
checked by a dealer.
High Temperature  
Indicator
● Comes on for a few seconds when  
you turn the ignition switch to ON 
(w , then goes off.
● Blinks when the engine coolant  
temperature goes up, and stays on if  
the temperature continues to rise.
● Blinks while driving  - Drive slowly to 
prevent overheating.
● Stays on while driving  - Immediately 
stop in a safe place and allow the  
engine to cool. 2Overheating  P. 311
* Not available on all models    
     
        
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71
uuIndicatorsu
Continued
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage*
Trunk Open  
Indicator
●
Comes on for a few seconds if you turn  
the ignition switch to ON 
(w , then goes 
off.
● Comes on if the trunk is not completely  
closed.
●Goes off when the trunk is closed.
EPS (Electric  
Power  
Steering 
System)  
Indicator● Comes on when you turn the ignition  
switch to ON 
(w , and goes off when the 
engine starts.
● Comes on if there is a problem with the  
EPS (Electric Power Steering System).
●
Stays on constantly or does not  
come on at all  - Have the vehicle 
checked by a dealer. 2If the EPS Indicator Comes On  
P. 315
Daytime  
Running  
Lights 
Indicator *●
Comes on for a few seconds when you  
turn the ignition switch to ON 
(w , then 
goes off.
● Comes on if there is a problem with the  
DRL system.
●
Have your vehicle checked by a dealer.
2Daytime Running Lights  P. 120
—
TPMS  
Indicator
●
Comes on for a few seconds when you  
turn the ignition switch to ON 
(w .
● Comes on if there is a problem with the  
TPMS, or when a compact spare tire is  
temporarily installed.
●Stays on constantly or does not  
come on at all  - Have the vehicle 
checked by a dealer. If the vehicle is 
fitted with a compact spare, get your 
regular tire repaired or replaced and put  
back on your vehicle as soon as you can.
—
U.S. 
models  onlyModels with 
information 
display
* Not available on all models