2015 Jeep Grand Cherokee Summit: The Pinnacle of Capability and Luxury
2015 Jeep Grand Cherokee Summit: The Pinnacle of Capability and Luxury jeeps.truckstrend.com
The automotive landscape is replete with SUVs that promise a blend of utility and comfort, but few manage to deliver on both fronts with the same authority as the Jeep Grand Cherokee. Within its storied lineage, the 2015 Jeep Grand Cherokee Summit stands out as a true flagship—a vehicle designed not just to transport, but to pamper, perform, and conquer. Representing the pinnacle of the Grand Cherokee lineup for its model year, the Summit trim level marries Jeep’s legendary off-road prowess with an uncompromising level of luxury, advanced technology, and refined on-road manners. It’s a compelling choice for discerning buyers who demand versatility without sacrificing premium amenities, offering a unique proposition in the competitive full-size SUV segment.
A Legacy of Refinement: What Makes the Summit Special?
2015 Jeep Grand Cherokee Summit: The Pinnacle of Capability and Luxury
The 2015 Jeep Grand Cherokee Summit is more than just a trim level; it’s a statement. Positioned as the most opulent and feature-rich offering in the Grand Cherokee family, it caters to those who appreciate the finer things in life but aren’t willing to compromise on genuine capability. While other luxury SUVs might shy away from rough terrain, the Summit embraces it, proving that elegance and ruggedness can coexist harmoniously. Its distinct identity is forged from a combination of premium materials, exclusive design elements, and a suite of advanced features that elevate the driving experience. This particular model year is notable as it represents a mature iteration of the WK2 generation, benefiting from continuous refinements since its 2011 redesign, offering a robust and well-sorted package.
Under the Hood: Powertrain Options and Performance
The heart of any great SUV lies in its powertrain, and the 2015 Jeep Grand Cherokee Summit offered a compelling trio of engine choices, each mated to a smooth and efficient eight-speed automatic transmission. This ensures that whether you prioritize fuel economy, raw power, or towing capability, there’s a Summit configuration to match your needs.
- 3.6L Pentastar V6: The standard engine, this acclaimed V6 produces a robust 290 horsepower and 260 lb-ft of torque. It offers a good balance of power and efficiency, with an EPA-estimated 17 MPG city / 24 MPG highway for 4×4 models. It’s perfectly adequate for daily driving and light towing, providing a refined and responsive experience.
- 5.7L Hemi V8: For those craving more muscle, the optional 5.7L Hemi V8 delivers 360 horsepower and a formidable 390 lb-ft of torque. This engine significantly boosts acceleration and towing capacity, allowing the Summit to haul up to 7,200 pounds. While fuel economy dips slightly (around 14 MPG city / 20 MPG highway for 4×4), the exhilarating power delivery and signature Hemi rumble are often worth the trade-off for many.
- 3.0L EcoDiesel V6: Perhaps the most intriguing option, the EcoDiesel V6 generates 240 horsepower and an impressive 420 lb-ft of torque. This torque figure, surpassing even the Hemi, makes it an excellent choice for heavy towing (also 7,200 lbs) and significantly enhances off-road prowess. Its standout feature, however, is fuel efficiency, boasting an EPA-estimated 22 MPG city / 30 MPG highway for 4×4 models, making it the most economical choice for long journeys.

Complementing these engines are Jeep’s sophisticated 4×4 systems. The Summit comes standard with the Quadra-Drive II 4×4 system, which includes a two-speed transfer case and electronic limited-slip differentials (ELSDs) at the rear (and sometimes front, depending on configuration). This system, combined with the Selec-Terrain traction management system (offering Auto, Snow, Sand, Mud, and Rock modes), allows the Summit to adapt to virtually any driving condition, from slick city streets to challenging off-road trails. Standard on the Summit is also the Quadra-Lift air suspension, which allows drivers to raise or lower the vehicle’s ride height, enhancing ground clearance for off-roading or improving aerodynamics and ease of entry/exit.
Summit of Luxury: Interior Features and Comfort
Step inside the 2015 Jeep Grand Cherokee Summit, and you’re immediately enveloped in an atmosphere of premium luxury. This is where the Summit truly distinguishes itself from lower trims.
- Opulent Materials: The cabin is adorned with high-grade Natura Plus leather upholstery, featuring intricate stitching and piping. Open-pore wood trim, a suede-like headliner, and Berber floor mats further enhance the upscale ambiance. The attention to detail is evident in every touchpoint, from the leather-wrapped dashboard to the soft-touch surfaces throughout.
- Unrivaled Comfort: Both front and rear passengers are treated to exceptional comfort. The front seats are not only heated and ventilated but also power-adjustable with memory functions. Rear passengers benefit from heated outboard seats and ample legroom. The dual-pane panoramic sunroof (optional on some models, often included on Summit) floods the cabin with natural light, contributing to an airy and spacious feel.
- Advanced Infotainment and Audio: At the heart of the dashboard is the intuitive Uconnect 8.4-inch touchscreen infotainment system, featuring navigation, Bluetooth connectivity, USB ports, and satellite radio. For the audiophile, the Summit comes standard with a premium 19-speaker Harman Kardon audio system, delivering crystal-clear sound that transforms every drive into a concert experience.
- Thoughtful Ergonomics: Despite its extensive feature list, the Summit’s interior remains highly ergonomic. Controls are logically placed, and the digital instrument cluster provides customizable information at a glance. Cargo space is generous, and the power liftgate makes loading and unloading a breeze.

Advanced Technology and Safety: Driving with Confidence

The 2015 Grand Cherokee Summit is not just about luxury and capability; it’s also packed with advanced technology designed to enhance safety and convenience.
- Comprehensive Safety Suite: Standard safety features on the Summit include Adaptive Cruise Control, which maintains a set distance from the vehicle ahead; Forward Collision Warning with Crash Mitigation, which can alert the driver to potential frontal impacts and even apply the brakes; Blind Spot Monitoring; and Rear Cross-Path Detection, invaluable for backing out of parking spots. ParkSense front and rear park assist sensors, along with a rearview camera, simplify parking maneuvers.
- Intelligent Lighting: Bi-xenon High-Intensity Discharge (HID) headlamps with LED daytime running lights provide excellent visibility and a distinctive look. Automatic high beams further enhance nighttime driving safety.
- Convenience Technologies: Keyless Enter-N-Go allows for easy access without fumbling for keys, while remote start lets you warm up or cool down the cabin before entry. The power liftgate adds another layer of convenience, especially when your hands are full.
On-Road Prowess and Off-Road Capability: A Dual Nature
One of the most remarkable aspects of the 2015 Jeep Grand Cherokee Summit is its ability to seamlessly transition from refined daily driver to rugged off-road adventurer.
- Refined On-Road Manners: Thanks to the Quadra-Lift air suspension, the Summit delivers a remarkably smooth and composed ride on pavement, absorbing road imperfections with ease. The cabin is exceptionally quiet, insulating occupants from road and wind noise, making long road trips a pleasure. Steering is precise, and the vehicle feels stable and confident at highway speeds.
- Uncompromised Off-Road Capability: When the pavement ends, the Summit truly shines. The Quadra-Drive II system, with its electronic limited-slip differentials, provides superior traction by automatically sending power to the wheels with the most grip. The Selec-Terrain system allows the driver to optimize the vehicle’s settings for various terrains, adjusting throttle response, transmission shifts, traction control, and the air suspension. The Quadra-Lift system can raise the vehicle to provide up to 10.8 inches of ground clearance, enabling it to clear obstacles that would leave many other luxury SUVs stranded. Its impressive approach, departure, and breakover angles further solidify its off-road credentials.
Important Considerations for Prospective Owners
While the 2015 Grand Cherokee Summit offers an impressive package, prospective owners should be aware of a few considerations:
- Maintenance Costs: As a top-tier luxury SUV with sophisticated systems like air suspension and advanced electronics, maintenance and potential repair costs can be higher than those for more basic vehicles. The EcoDiesel engine, while efficient, can also have higher maintenance requirements and potentially more complex repairs as it ages.
- Fuel Economy (V8): While the EcoDiesel excels, the Hemi V8, while powerful, will demand more frequent stops at the gas station, especially if driven aggressively or used for heavy towing.
- Air Suspension Longevity: While generally reliable, the Quadra-Lift air suspension components (compressor, air springs) can be expensive to repair or replace if they fail over time. It’s crucial to inspect these components on a used vehicle.
- Uconnect System: While excellent, some early Uconnect 8.4 systems (especially pre-2016) could experience occasional software glitches. Ensure any used vehicle has had its software updated.
Tips for Buying and Maintaining a Used 2015 Grand Cherokee Summit
For those considering a pre-owned 2015 Jeep Grand Cherokee Summit, here are some practical tips:
- Pre-Purchase Inspection (PPI): This is paramount. Have a trusted mechanic (ideally one familiar with Jeeps and air suspension systems) thoroughly inspect the vehicle, paying close attention to the air suspension, all electronic components, and the engine (especially the EcoDiesel for signs of EGR/oil cooler issues).
- Service Records: Request complete service records. Regular maintenance is crucial for these vehicles, particularly for the EcoDiesel, which requires specific oil and filter changes.
- Test Drive Thoroughly: Drive the vehicle on various road surfaces, including some rough patches if possible, to evaluate the air suspension’s performance. Test all features, including the Uconnect system, climate control, and all safety features.
- Check for Recalls: Ensure all open recalls have been addressed.
- Budget for Maintenance: Factor in potential maintenance costs, especially for tires (which can be expensive for 20-inch wheels) and potential repairs to specialized systems.
Price Table: 2015 Jeep Grand Cherokee Summit
Here’s an overview of the approximate original MSRP and estimated current used market values for the 2015 Jeep Grand Cherokee Summit, acknowledging that used prices vary widely based on condition, mileage, location, and options.
| Feature / Engine | Original MSRP (Approx.) | Used Market Value (2024 Est.) | Notes |
|---|---|---|---|
| Summit 4×2 (3.6L V6) | $48,995 | $16,000 – $22,000 | Less common, Rear-Wheel Drive only. |
| Summit 4×4 (3.6L V6) | $51,995 | $18,000 – $25,000 | Most common and popular configuration, excellent balance. |
| Summit 4×4 (5.7L V8) | $54,995 | $20,000 – $28,000 | Added cost for V8 engine, ideal for towing and performance. |
| Summit 4×4 (3.0L EcoDiesel V6) | $56,995 | $22,000 – $30,000 | Premium for diesel, best fuel economy and torque, potentially higher long-term maintenance. |
| Standard Features | Included in MSRP | – | Quadra-Drive II, Quadra-Lift Air Suspension, Natura Plus Leather, Harman Kardon 19-speaker audio, Uconnect 8.4, Safety Group. |
| Common Optional Upgrades | Varies | – | Rear DVD Entertainment System, Trailer Tow Group. |
Disclaimer: Used market values are estimates as of early 2024 and are subject to significant variation based on vehicle condition, mileage, specific options, geographical location, and market demand.
Frequently Asked Questions (FAQ)
Q: What engines were available in the 2015 Jeep Grand Cherokee Summit?
A: The 2015 Summit offered three engine choices: the 3.6L Pentastar V6, the 5.7L Hemi V8, and the 3.0L EcoDiesel V6. All were paired with an 8-speed automatic transmission.
Q: Does the 2015 Grand Cherokee Summit come with air suspension?
A: Yes, the Quadra-Lift air suspension system is standard on the 2015 Grand Cherokee Summit, allowing for adjustable ride height.
Q: Is the 2015 Summit good off-road?
A: Absolutely. With the standard Quadra-Drive II 4×4 system, Selec-Terrain traction management, and Quadra-Lift air suspension, the 2015 Summit is highly capable off-road for a luxury SUV.
Q: What is the fuel economy like for the different engine options?
A: Estimates for 4×4 models are: 3.6L V6 (17/24 MPG city/highway), 5.7L V8 (14/20 MPG), and 3.0L EcoDiesel V6 (22/30 MPG).
Q: What are common problems or concerns with the 2015 Grand Cherokee Summit?
A: Potential concerns can include issues with the Quadra-Lift air suspension components (compressor, airbags) as they age, occasional software glitches with the Uconnect infotainment system, and for the EcoDiesel, potential issues with EGR coolers or oil coolers over time. A thorough pre-purchase inspection is recommended.
Q: What is the towing capacity of the 2015 Grand Cherokee Summit?
A: With the 3.6L V6, it can tow up to 6,200 pounds. With the 5.7L Hemi V8 or 3.0L EcoDiesel V6, the towing capacity increases to 7,200 pounds.
Q: What is the difference between Quadra-Trac II and Quadra-Drive II?
A: Quadra-Trac II is a full-time 4WD system with a two-speed transfer case. Quadra-Drive II, standard on the Summit, adds electronic limited-slip differentials (ELSDs) to the rear (and sometimes front), providing superior traction by sending power to the wheels with the most grip.
Conclusion
The 2015 Jeep Grand Cherokee Summit remains a compelling choice in the used SUV market, offering a rare combination of genuine off-road prowess, sophisticated on-road manners, and an interior draped in luxury. It embodies Jeep’s commitment to versatility, proving that an SUV can be both a rugged adventurer and a comfortable, high-tech sanctuary. For those seeking a premium vehicle that doesn’t shy away from any challenge, the 2015 Grand Cherokee Summit continues to deliver exceptional value and a truly elevated driving experience.
