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2014 Jeep Cherokee specifications, comparisons, and safety features

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Main 2014 Jeep Cherokee page (with off-road specifications)

Wheels, steering, and brakes

 SportLatitudeLimitedTrailhawk
Standard Wheels17x7 Steel17x7 Al.18x717x7.5
Optional17.7 Al18x7--
Standard Tires225/60R17
Destination LE2
225/60R17
Destination LE2
225/55R18
ProContact TX
P245/65R17
Destination A/T
Optional225/65R17
Destination LE2
225/65R17
Destination LE2
225/60R18
ProContact TX
 

The 2014 Jeep Cherokee uses electrically power-assisted steering, with computer control — as most new cars do.

 FWD4x4 I, IITrailhawk
Overall Ratio 15.15 15.1515.36
Turning diameter, feet (meters)37.6 (11.5) 37.7 (11.5) 38.0 (11.6)
Steering Turns (lock-to-lock) 2.562.562.67

Either engine is equipped with a 160 amp alternator and 600 amp battery (180 amp alternator and 730 amp batteries are optional). The front suspension uses McPherson struts with long-travel coil springs, mounted in a one-piece aluminum sub-frame, with aluminum lower control arms and a standard stabilizer bar. Cherokee uses a four-link rear suspension with trailing arm, aluminum lateral links, isolated high-strength steel rear cradle, coil springs, and a stabilizer bar.

The load floor is 30.9 inches high, the sill step is 18 inches high. The gas tank holds 60 liters (15.9 gallons).

Jeep Cherokees — Specifications 1997 and 2014

1997 cherokee

The 2014 Cherokee provides more room for passengers, with less cargo space. It is more flexible in the seating / cargo arrangements than the XJ Cherokee, quicker, quieter, and far more efficient, but less capable off-road. (We are using the 1997 version of the XJ because we have relatively complete specifications.)

Dimension 2014 Jeep Cherokee 1997 Jeep Cherokee
Max people+cargo weight 1,000 lb (454 kg) 1,150 lb
Towing (no Tow Group; Class II hitch) 2,000 lb (907 kg)
Towing, 3.2 (Tow Package; Class III) 4,500 lb (2,041 kg) 5,000 lb
Curb weight, 3.2-liter 4x2 * 3,811 (1,729) 3,111 lb
Curb weight, 3.2-liter 4x4 4,044 (1,834) 3,153 lb
Curb weight, 3.2-liter 4x4 Lock 4,106 (1,862) 3,153 lb
Weight distribution 57/43 (4x4, w/two pass.) 53/47
Front Head Room w/out Sunroof 39.4 (999.9) 37.8
Front Head Room with Sunroof 37.9 (964.5)
Front Legroom 41.1 (1,045) 41.4
Front Shoulder Room 57.6 (1,462.3) 55.2
Front Hip Room 53.8 (1,366.6)
Front Seat Travel 8.3 (210)
Front Recliner Range (degrees) 6-84 (manual) / 6-61.25 (auto)
Front SAE Volume (std roof) 55.98 cu. ft.
Rear Head Room 38.5 (978.2) 38.5
Rear Legroom 40.3 (1,023.2) 35.0
Rear Knee Clearance 3.5 (90.1)
Rear Shoulder Room 55.1 (1,399.8) 55.2
Rear Hip Room 49.9 (1,268.1)
Rear Recliner Range (degrees) 19.25 to 27.25
SAE Cargo Volume (cu. ft.) 49.47
Cargo Liftover Height 30.9 (785.6) 4x4
Min width at liftgate opening 36.1 (916.9) at top of opening
Min height at liftgate opening 30.7 (780.0) 4x2
Distance between wheelhouses 39.4 (1,000.5)
Cargo vol. behind rear seat 24.8 to 29.7 cubic feet
(seat moves fore and aft)
34 cubic feet
Cargo vol. behind front seats 54.9 cubic feet 71 cubic feet
Coefficient of drag (cD)   0.51
Frontal area   24.5 cubic feet
Wheels 17x7, 17x7.5, 18x7 15 x 7
Wheelbase 106 101.4
Length x width 182 x 73.2 (Trailhawk, 74.9)167.5 x 68
Height 66.2 - 67.8 64.0

* Curb weight is calculated in pounds (kg) with two passengers and all required fluids.

The nine-speed automatic has a 9.79 ratio spread, with a first gear of 4.70 and a 9th of 0.48; the axle ratios are 3.251 (V6), 3.517 (AWD with towing), 3.734 (2.4 engine), and 4.048 (2.4 AWD wtih towing). The low range ratio is 2.92:1 on AWD systems. Clearance at the front axle is 10.4 inches with the two-speed PTU; 9.7 inches at the locking two-speed rear differential.

How does the four wheel drive / PTU system work?

We will be updating this soon, but in the meantime, this was written before the official launch.

The Cherokee system for four-wheel grip includes AWD, locked 4WD-high, locked 4WD-low, and a rear disconnect with sliding fork engagement (it is built by AAM, according to Automotive News). Bob Sheaves wrote that the patent applications showed it to be similar to the New Venture 242 transfer case, with a 90-degree output to the rear axle. The front-axle differential is separate from the transmission (but possibly inside the transaxle housing), with the bolt on the power takeoff (PTO) box along a split line (near #30 on the following diagram), separating it from the main housing. Not shown on the diagram, because it is a “flattened view,” are the two front halfshafts, which are splined to the front-differential side gears. Note: Chrysler refers to the PTO and associated gearing as a PTU, or Power Transfer Unit.

annotated transfer case diagram

To the left of #30 on the diagram, everything would be common, enclosed components with the 2WD transaxle and case. To the right of #30, everything is enclosed in the PTO housing.

The diagram shows why a special gear reduction is needed, and why there is no need for a neutral position in the PTO housing, which is only used to disconnect the drive line (to use the PTO). The planetary gearset provides the main reduction. Locking the ring gear to the sun gear gives a 1:1 ratio to both differentials. Locking the rear gear or planetary gears so they’re stationary gives a reduction ratio.

Mr. Sheaves pointed out, “With the range select ahead of the AWD differential, the differential can be smaller, lighter, and less expensive than if placed downstream from the splitter. The faster you spin the interaxle propshaft, due to multiple reduction stages, ... the more vibration you incur due to mismatch of joint angularity caused by movement of the axles (since they do not move up and down and are rubber mounted to the body) relative to each other, forcing the need of a multiple jointed propshaft with additional carrier bearings to shorten the span and stay below each individual shaft's critical speed. ... You don't design a component without considering the effect on the system.

“One thing missing from both designs is a torque proportioning differential in both axles and between the axles in the transfer gearing. It can be done, but not in the shown differential housings or PTO. This would be more important to provide a biased system, as you want in high performance cars.”

Safety

The 2014 Jeep Cherokee is loaded with safety systems, including ten standard airbags and Chrysler’s own lane-change and rear cross path alerts. New features are a parking assistance system, a new adaptive cruise control, a new lane departure warning, and a new forward collision warning system.

Standard and optional features include:

EnginePentastar V6TigerShark FourFiat 2.0 MultiJet Diesel
Type60-degree V-type, 198 cidInline four-cylinder, 144 cidDiesel, in-line four
ValvetrainChain-driven 24-valve,
variable cam phasing
SOHC, 16 valves, MultiAir VVTDOHC
Compression10.7:1 10:01 
Horsepower271 hp (199 kW) @ 6,500 rpm 184 hp (137 kW) @ 6,250 rpm 170 @ 4,000 (125 kW)
Torque239 lb.-ft. (316 Nm) @ 4,400171 lb.-ft. (232 Nm) @ 4,800258 lb-ft (350 Nm) @ 1,750
Redline6,500 rpm6,500 rpm >4000 rpm
FuelRegular (87)Regular (87)Low-sulfur diesel
Oil / coolant6.0 qt. (5.7 liter); 9.7 qt. (9.2 liter) 5.5 qt. / 5.2 liter; 7.1 qt. / 6.7 liter  

Also see: Pentastar V6 • Hemi V8 • Nine-speed automatic • 2014 Jeep Cherokee • XJ Jeep Cherokee


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