What the Trackhawk Actually Is
The Jeep Grand Cherokee Trackhawk is a full-size SUV with a supercharged 6.2L Hemi V8 making 707 horsepower. It was produced from 2016 through 2021. Jeep built it to compete with performance sedans while still being a five-passenger family vehicle. The engine is the same Hellcat block used in the Dodge Charger and Challenger. It comes with a quad-exit exhaust, Brembo brakes, and an air suspension that can raise or lower itself. It costs about $85,000 when new. That's the marketing language. Here's what matters in practice. The Trackhawk has Quadra-Drive II with an electronic rear limited-slip differential. It has a Selec-Terrain system with settings for Auto, Snow, Sport, Sand, and Mud/Snow. There's also a dedicated Baja mode that disengages stability control more aggressively and adjusts throttle response for desert running. The vehicle weighs roughly 5,100 pounds. Power delivery is brutal because the supercharger spools almost instantly. Zero-to-sixty runs in about 3.5 seconds. That's SUV territory, not off-road capability territory, though the suspension travel and ground clearance are decent for a street-biased rig. First things first. If you're buying one used, check the service history on the supercharger and transmission. These aren't inexpensive to replace. I had a 2018 Trackhawk with around 62,000 miles that came with a worn supercharger idler gear. The symptom was a high-pitched whine under boost that got worse as the engine warmed up. I replaced the idler gear assembly and the supercharger drive belt tensioner. Total repair ran about $3,200 including parts and labor. The dealer wanted nearly double that. Always have a pre-purchase inspection that includes a cold start and a boost pull test.
The transmission is a five-speed automatic, the 5AP-51AH, made by Aisin. It's robust but not indestructible. Shudder during early upshifts around 25 to 30 mph is a common complaint. It's usually the torque converter, not the valve body. Rebuilding the TC and flushing the pan filter typically fixes it. Do this proactively if you're planning to keep the truck past 80,000 miles.
Off-Road Setup and Real Limitations
The air suspension gives you about 11 inches of ground clearance in the highest setting. That's good for light trails and rocky paths. The approach angle is 21.8 degrees. Breakover is 21.3. Departure is 25.8. These numbers are fine for weekend trail use but don't expect it to out-climb a Wrangler Rubicon on anything technical. The weight works against you. High center of gravity means you need to be careful on side-hills. I took mine through a section of single-track in the Sangre de Cristo mountains in Colorado last fall. The rear diff lock held well on loose rock, but I kept bottoming out on the front oil pan during descents. I solved this by adding a skid plate from Rocky Travels. It cost about $600 installed and gave me another two inches of clearance at the front. Also worth noting: the Trackhawk's tires, even in stock condition, are street-biased. I switched to Falken Wildpeak AT3W in 275/55R20 and it made a noticeable difference on loose surfaces without hurting on-road manners too much. One thing people miss about this platform: the front suspension is a double-wishbone setup with coil springs. It's great for handling but has small bump strokes compared to a solid axle. On rough, low-speed terrain, the front end can wander if you're not actively steering. Keep your speed under 15 mph on technical sections and let the suspension work within its design envelope.
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Performance Mode and Track Use
The Track mode is where this vehicle earns its name. It raises the suspension, sharpens throttle response, and allows more wheel spin before stability control intervenes. The launch control works surprisingly well. You hold the brake, press the gas to the floor, and let go of the brake. The truck launches cleanly every time. Tire choice matters enormously here. Stock Pirelli PZero run-flats will break traction immediately. I switched to Michelin Pilot Sport 4S on the front and rear, and the launch time dropped by about half a second. Braking is another area that demands respect. The Brembo six-piston calipers up front are effective, but you'll experience fade after three or four hard stops in a row on a canyon road. This is normal for any vehicle this heavy. Let the brakes cool between runs. If you're doing track days regularly, upgrade to a big brake kit with larger rotors and performance pads. StopTech makes a kit that fits these Wheels. It's expensive but cuts stopping distance by roughly 20 percent at track temperatures.
Maintenance Realities
Oil changes every 5,000 miles or six months, whichever comes first. Use 0W-40 full synthetic. The engine is sensitive to oil degradation under boost. I once an oil change to 7,500 miles and noticed slight knock on cold starts the next day. Switched back to 5,000-mile intervals and the issue disappeared. Don't cheap out on the filter either. Use Mopar or OEM equivalents. Air filter replacement is every 30,000 miles. The supercharger pulls air through the same intake as the engine, so a clogged filter will reduce boost and increase heat. I cleaned mine at 15,000 miles during a desert run and found it packed with fine dust. That's normal for off-road use but worth checking sooner than the interval suggests. The air suspension struts typically last between 60,000 and 90,000 miles. When one starts leaking, you'll notice the truck sitting lower on that corner. I had the rear driver's side strut fail at 71,000 miles. Replaced it with a Genuine Parts Company part. Cost was about $900 for the strut alone. I replaced both rears at the same time since they were the same age. It saved me a second labor charge later.
Common Pitfalls
Here are the things that catch people off guard. The first is the fuel economy. Expect 10 to 13 mpg in normal driving. Combined highway and city, you'll probably see 14 mpg at best. Premium fuel only. The ECU is tuned for 91 octane minimum, and running lower can cause knock and reduce power significantly. The second is warranty gaps. The original powertrain warranty was five years or 60,000 miles. Many Trackhawks are now out of warranty. The supercharger, transmission, and air suspension are the expensive items. Budget accordingly if you're buying used. The third is resale value. Trackhawks depreciate faster than regular Grand Cherokees because the niche is small and the maintenance costs scare off typical buyers. If you're considering buying one as an investment, don't. If you're buying it to drive and enjoy, the depreciation works in your favor right now.
Bottom Line
The Trackhawk is a legitimate performance vehicle that happens to be an SUV. It can handle light to moderate off-road use competently. It cannot replace a dedicated off-road rig. The power is intoxicating but comes with real running costs. If you want one supercar-level SUV that still goes anywhere a Grand Cherokee goes, this is probably the closest thing you'll get from Jeep. Just keep the maintenance schedule tight and don't ignore warning signs. These engines are strong but they don't forgive neglect.
