2012 DODGE CHALLENGER SRT Owners Manual

•Most of the time, when in Automatic Operation, you
can temporarily put the system into Recirculation
Mode by pressing the Recirculation button. However,
under certain conditions, while in Automatic Mode,
the system is blowing air out the defrost vents. When
these conditions are present, and the Recirculation
button is pressed, the indicator will flash and then turn
off. This tells you that you are unable to go into
Recirculation Mode at this time. If you would like the
system to go into Recirculation Mode, you must first
move the Mode knob to Panel, Panel/Floor and then
press the Recirculation button. This feature reduces the
possibility of window fogging.
Operating Tips
NOTE:Refer to the chart at the end of this section for
suggested control settings for various weather condi-
tions.
Summer Operation
The engine cooling system in air-conditioned vehicles
must be protected with a high-quality antifreeze coolant
to provide proper corrosion protection and to protect
against engine overheating. A solution of 50% ethylene
glycol antifreeze coolant and 50% water is recommended.
Refer to “Maintenance Procedures” in “Maintaining Your
Vehicle” for proper coolant selection.
Winter Operation
Use of the air Recirculation Mode during winter months is
not recommended because it may cause window fogging.
Vacation Storage
Anytime you store your vehicle, or keep it out of service
(i.e., vacation) for two weeks or more, run the air
conditioning system at idle for about five minutes in the
fresh air and high blower settings. This will ensure
adequate system lubrication to minimize the possibility
of compressor damage when the system is started again.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 247

Window Fogging
Interior fogging on the windshield can be quickly re-
moved by turning the mode selector to Defrost. The
Defrost/Floor mode can be used to maintain a clear
windshield and provide sufficient heating. If side win-
dow fogging becomes a problem, increase blower speed.
Vehicle windows tend to fog on the inside in mild but
rainy or humid weather.
NOTE:Recirculate without A/C should not be used for
long periods as fogging may occur.
Side Window Demisters
A side window demister outlet is located at each end of
the instrument panel. These non-adjustable outlets direct
air toward the side windows when the system is in the
FLOOR, MIX, or DEFROST mode. The air is directed at
the area of the windows through which you view the
outside mirrors.
Outside Air Intake
Make sure the air intake, located directly in front of the
windshield, is free of obstructions such as leaves. Leaves
collected in the air intake may reduce airflow, and if they
enter the plenum, they could plug the water drains. In
winter months, make sure the air intake is clear of ice,
slush, and snow.
A/C Air Filter
The A/C Filter prevents most dust and pollen from
entering the cabin. The filter acts on air coming from
outside the vehicle and recirculated air within the pas-
senger compartment. Refer to “Maintenance Procedures”
in “Maintaining Your Vehicle” for A/C Air Filter service
information or see your authorized dealer for service.
Refer to “Maintenance Schedules” for filter service
intervals.
248 UNDERSTANDING YOUR INSTRUMENT PANEL

Control Setting Suggestions for Various Weather Conditions
4
UNDERSTANDING YOUR INSTRUMENT PANEL 249

STARTING AND OPERATING
CONTENTS
Starting Procedures .................... 255
▫ Manual Transmission – If Equipped ....... 255
▫ Automatic Transmission – If Equipped ..... 256
▫ Keyless Enter-N-Go ................... 257
▫ Normal Starting ..................... 258
▫ Extreme Cold Weather
(Below –20°F Or 29°C)............... 261
▫ If Engine Fails To Start ................ 261
▫ After Starting ....................... 263 
Engine Block Heater — If Equipped ........ 263
 Manual Transmission — If Equipped ........ 263
▫ Six-Speed Manual Transmission .......... 263
 Automatic Transmission — If Equipped ...... 267
▫ Key Ignition Park Interlock ............. 269
▫ Brake/Transmission Shift Interlock System . . 269
▫ Five-Speed Automatic Transmission ....... 269
▫ Gear Ranges ........................ 270
5

AutoStick .......................... 276
▫ Steering Wheel Mounted Paddle Shifters Or
Console Mounted Shifter ............... 276
 Sport Mode .......................... 278
 Driving On Slippery Surfaces ............. 279
▫ Acceleration ........................ 279
▫ Traction ........................... 280
 Driving Through Water ................. 281
▫ Flowing/Rising Water ................. 281
 Power Steering ....................... 283
▫ Power Steering Fluid Check ............. 284
 Parking Brake ........................ 285
▫ Manual Transmission – If Equipped ....... 286▫
Automatic Transmission – If Equipped ..... 286
 Brake System ........................ 288
▫ Anti-Lock Brake System (ABS) ........... 288
 Electronic Brake Control System ........... 291
▫ Anti-Lock Brake System (ABS) ........... 291
▫ Traction Control System (TCS) ........... 292
▫ Brake Assist System (BAS) .............. 292
▫ Hill Start Assist (HSA) ................ 293
▫ Electronic Stability Control (ESC) ......... 295
▫ ESC Activation/Malfunction Indicator Light
And ESC Off Indicator Light ............ 299
▫ Synchronizing ESC ................... 300
252 STARTING AND OPERATING

Tire Safety Information ................. 300
▫ Tire Markings ....................... 300
▫ Tire Terminology And Definitions ......... 305
▫ Tire Loading And Tire Pressure .......... 306
 Tires — General Information ............. 310
▫ Tire Pressure ....................... 310
▫ Tire Inflation Pressures ................ 311
▫ Radial Ply Tires ..................... 313
▫ F1 Three-Season Tires — If Equipped ...... 313
▫ Tire Spinning ....................... 314
▫ Tread Wear Indicators ................. 314
▫ Life Of Tire ........................ 315
▫ Replacement Tires .................... 316 
Tire Chains .......................... 317
 Snow Tires .......................... 319
 Tire Rotation Recommendations ........... 319
▫ Tire Rotation – Four Season/Rsa Tires ..... 320
▫ Tire Rotation – F1 Three Season Tires ...... 321
 Tire Pressure Monitor System (TPMS) ....... 321
▫ Premium System .................... 324
▫ General Information .................. 328
 Fuel Requirements ..................... 329
▫ 6.4L Engine ........................ 329
▫ Reformulated Gasoline ................ 329
▫ Gasoline/Oxygenate Blends ............. 330
▫ E-85 Usage In Non-Flex Fuel Vehicles ...... 330
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STARTING AND OPERATING 253

▫MMT In Gasoline .................... 331
▫ Materials Added To Fuel ............... 331
▫ Fuel System Cautions ................. 332
▫ Carbon Monoxide Warnings ............ 333
 Adding Fuel ......................... 334
▫ Fuel Filler Cap (Gas Cap) .............. 334
▫ Loose Fuel Filler Cap Message ........... 335
 Vehicle Loading ...................... 335
▫ Vehicle Certification Label .............. 336 ▫
Gross Vehicle Weight Rating (GVWR) ...... 336
▫ Gross Axle Weight Rating (GAWR) ........ 336
▫ Overloading ........................ 337
▫ Loading ........................... 337
 Trailer Towing ........................ 337
 Recreational Towing
(Behind Motorhome, Etc.) ................ 338
▫ Automatic Transmission — If Equipped .... 338
▫ Manual Transmission — If Equipped ...... 339
254 STARTING AND OPERATING