2010 JEEP GRAND CHEROKEE traction control

WARNING! (Continued)
•The ABS cannot prevent the natural laws of phys-
ics from acting on the vehicle, nor can it increase
braking or steering efficiency beyond that af-
forded by the condition of the vehicle brakes and
tires or the traction afforded.
•The ABS cannot prevent accidents, including
those resulting from excessive speed in turns,
following another vehicle too closely, or hydro-
planing. Only a safe, attentive, and skillful driver
can prevent accidents.
•The capabilities of an ABS equipped vehicle must
never be exploited in a reckless or dangerous
manner, which could jeopardize the user’s safety
or the safety of others.
CAUTION!
The ABS is subject to possible detrimental effects of
electronic interference caused by improperly in-
stalled aftermarket radios or telephones.
NOTE: During severe braking conditions, a pulsing
sensation may occur and a clicking noise will be heard.
This is normal, indicating that the ABS is functioning.
•Do not “ride” the brakes by resting your foot on the
pedal. This could overheat the brakes and result in
unpredictable braking action, longer stopping dis-
tances, or brake damage.
•When descending mountains or hills, repeated brak-
ing can cause brake fade with loss of braking control.
Avoid repeated heavy braking by downshifting the
transmission or locking out overdrive whenever pos-
sible.
5
STARTING AND OPERATING 269

•Engines may idle at higher speeds during warm-up,
which could cause rear wheels to spin and result in
loss of vehicle control. Be especially careful while
driving on slippery roads, in close-quarter maneuver-
ing, parking, or stopping.
•Do not drive too fast for road conditions, especially
when roads are wet or slushy. A wedge of water can
build up between the tire tread and the road. This
hydroplaning action can cause loss of traction, braking
ability, and control.
•After going through deep water or a car wash, brakes
may become wet, resulting in decreased performance
and unpredictable braking action. Dry the brakes by
gentle, intermittent pedal action while driving at very
slow speeds.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced electronic
brake control system that includes the Anti-Lock BrakeSystem (ABS), Traction Control System (TCS), Brake
Assist System (BAS), Electronic Roll Mitigation (ERM),
and Electronic Stability Program (ESP). All five of these
systems work together to enhance vehicle stability and
control in various driving conditions.
Also, your vehicle is equipped with Trailer Sway Control
(TSC) and, if it has four-wheel drive with the NV245
two-speed transfer case, Hill Start Assist (HSA) and Hill
Descent Control (HDC).
Anti-Lock Brake System (ABS)
This system aids the driver in maintaining vehicle control
under adverse braking conditions. The system controls
hydraulic brake pressure to prevent wheel lock-up and
help avoid skidding on slippery surfaces during braking.
Refer to “Anti-Lock Brake System” in “Starting and
Operating” for further information.
270 STARTING AND OPERATING

WARNING!
The ABS cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase the
traction afforded by prevailing road conditions. The
ABS cannot prevent accidents, including those re-
sulting from excessive speed in turns, driving on
very slippery surfaces, or hydroplaning. Only a safe,
attentive, and skillful driver can prevent accidents.
The capabilities of an ABS-equipped vehicle must
never be exploited in a reckless or dangerous manner
which could jeopardize the user’s safety or the safety
of others.
Traction Control System (TCS)
This system monitors the amount of wheel spin of each of
the driven wheels. If wheel spin is detected, brake
pressure is applied to the slipping wheel(s) and engine
power is reduced to provide enhanced acceleration andstability. A feature of the TCS system functions similar to
a limited-slip differential and controls the wheel spin
across a driven axle. If one wheel on a driven axle is
spinning faster than the other, the system will apply the
brake of the spinning wheel. This will allow more engine
torque to be applied to the wheel that is not spinning.
This feature remains active even if TCS and ESP are in
either the “Partial Off” or “Full Off” modes. Refer to
“Electronic Stability Program (ESP)” in this section for
more information.
Brake Assist System (BAS)
The BAS is designed to optimize the vehicle’s braking
capability during emergency braking maneuvers. The
system detects an emergency braking situation by sens-
ing the rate and amount of brake application and then
applies optimum pressure to the brakes. This can help
reduce braking distances. The BAS complements the
anti-lock brake system (ABS). Applying the brakes very
quickly results in the best BAS assistance. To receive the
5
STARTING AND OPERATING 271

NOTE:•The “ESP/TCS Indicator Light” and the “ESP/BAS
Warning Light” come onmomentarilyeach time the
ignition switch is turned to the ON position.
•Each time the ignition switch is turned to the ON
position, the ESP System will be ON even if it was
previously turned off.
•The ESP Control System will make buzzing or clicking
sounds when it is active. This is normal; the sounds
will stop when the ESP becomes inactive following the
maneuver that caused the ESP activation.
TIRE SAFETY INFORMATION
Tire Markings
1 — U.S. DOT Safety Stan-
dards Code (TIN) 4 — Maximum Load
2 — Size Designation 5 — Maximum Pressure
3 — Service Description 6 — Treadwear, Traction and Temperature Grades
284 STARTING AND OPERATING

DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES
The following tire grading categories were established by
the National Highway Traffic Safety Administration. The
specific grade rating assigned by the tire’s manufacturer
in each category is shown on the sidewall of the tires on
your vehicle.
All passenger car tires must conform to Federal safety
requirements in addition to these grades.
Treadwear
The Treadwear grade is a comparative rating, based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course. For
example, a tire graded 150 would wear one and one-half
times as well on the government course as a tire graded
100. The relative performance of tires depends upon the
actual conditions of their use, however, and may departsignificantly from the norm due to variations in driving
habits, service practices, and differences in road charac-
teristics and climate.
Traction Grades
The Traction grades, from highest to lowest, are AA, A, B,
and C. These grades represent the tire’s ability to stop on
wet pavement, as measured under controlled conditions
on specified government test surfaces of asphalt and
concrete. A tire marked C may have poor traction perfor-
mance.
WARNING!
The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not
include acceleration, cornering, hydroplaning, or
peak traction characteristics.
9
IF YOU NEED CONSUMER ASSISTANCE 443

Brake Assist System.................... 271
Electronic Roll Mitigation ................ 272
Electronic Stability Program ............... 273
Traction Control System ................. 271
Electronic Roll Mitigation (ERM) ............. 272
Electronic Speed Control (Cruise Control) ....... 116
Electronic Stability Program (ESP) ............ 273
Electronic Throttle Control Warning Light ...... 167
Electronic Vehicle Information Center
(EVIC) ............................. 164,168
Emergency, In Case of Freeing Vehicle When Stuck ............... 252
Hazard Warning Flasher ................. 346
Jacking ............................. 348
Jump Starting ......................... 355
Tow Hooks .......................... 359
Emission Control System Maintenance ......366,418
Engine Air Cleaner .......................... 372 Block Heater
......................... 242
Break-In Recommendations ................ 71
Compartment ...................... 363,364
Compartment Identification ............363,364
Cooling ............................. 380
Exhaust Gas Caution .................. 72,319
Fails to Start .......................... 241
Flooded, Starting ...................... 241
Fuel Requirements .................. 315,413
Jump Starting ......................... 355
Multi-Displacement .................... 265
Oil .............................. 369,413
Oil Change Interval .................... 370
Oil Disposal .......................... 371
Oil Filter ............................ 372
Oil Filter Disposal ..................... 371
Oil Selection ....................... 370,413
Oil Synthetic ......................... 371
Overheating .......................... 346
450 INDEX

Cruise.............................. 166
Daytime Running ...................... 104
Dimmer Switch, Headlight .............101,108
Electronic Stability Program (ESP) Indicator . . . 283
Electronic Throttle Control Warning ......... 167
Exterior .............................. 74
Fog .......................... 106,167,410
Four-Wheel Drive Indicator ............... 165
Fuses ............................... 398
Hazard Warning Flasher ................. 346
Headlight Switch ...................... 102
Headlights ........................ 407,408
Headlights On With Wipers ............... 103
High Beam Indicator .................... 159
Illuminated Entry ....................... 20
Instrument Cluster ..................... 102
Interior ............................. 108
Lights On Reminder .................... 106
Low Fuel ............................ 168 Malfunction Indicator (Check Engine)
........ 159
Map Reading ......................... 108
Oil Pressure .......................... 161
Passing ............................. 108
Reading .......................... 108,127
Rear Servicing ........................ 410
Rear Tail ............................ 410
Seat Belt Reminder ..................... 166
Security Alarm (Theft Alarm) .............. 161
Service ............................. 407
Service Engine Soon (Malfunction Indicator) . . . 159
Side Marker .......................... 410
SmartBeams .......................... 103
Tire Pressure Monitoring (TPMS) ........... 162
Tow/Haul Indicator .................... 165
Traction Control ....................... 283
Turn Signal ................ 74,101,107,409,410
Vanity Mirror .......................... 84
Voltage ............................. 167
10
INDEX 455

Spinning............................ 299
Tread Wear Indicators ................... 300
Wheel Mounting ...................... 354
Tongue Weight/Trailer Weight .............. 331
Torque Converter Clutch .................. 251
Tow Hooks, Emergency ................... 359
Tow/Haul Indicator Light ................. 165
Towing ............................ 324,359
Disabled Vehicle ....................... 359
Guide .............................. 330
Recreational .......................... 338
Weight .............................. 330
Traction Control ......................... 271
Trailer Sway Control (TSC) ................. 278
Trailer Towing .......................... 324
Cooling System Tips .................... 338
Hitches ............................. 328
Minimum Requirements ................. 332
Trailer and Tongue Weight ............... 331 Wiring
.............................. 335
Trailer Towing Guide ..................... 330
Trailer Weight .......................... 330
Transfer Case ........................... 388
Maintenance ......................... 388
Transmission Automatic ........................ 245,389
Maintenance ......................... 389
Shifting ............................. 243
Transmitter Battery Service
(Remote Keyless Entry) .................... 24
Transmitter, Garage Door Opener (HomeLink) . . 128
Transmitter Programming
(Remote Keyless Entry) .................... 20
Transmitter, Remote Keyless Entry (RKE) ........ 20
Tread Wear Indicators .................... 300
Turn Signals ................... 107,159,409,410
UCI Connector ......................... 209
10
INDEX 463