• Your oil change interval depends on how you drive. Dusty trails, sand, and heavy towing push you toward the shorter end of the range; steady highway miles let you stretch it.
• Every oil change is also an inspection. Tire rotation, battery, brakes, cooling system, and exhaust all get checked at the same visit, which is where problems get caught early.
• Some parts run on a calendar, not a clock. Cabin filters, wiper blades and batteries wear out by time and exposure regardless of mileage.

At 20,000 miles, your Grand Cherokee gets everything from the oil change interval plus four additional checks. This is the first visit where drivetrain and suspension components come under real scrutiny.

Technicians inspect the CV and universal joints, examine the front suspension, check the brake linings and parking brake function, and replace the air conditioning filter. That cabin filter swap is more noticeable than you'd expect: it's what keeps pollen out of the cabin during a New England spring and helps the system defog your windshield quickly on damp fall mornings.

The 30,000-mile visit repeats the previous inspections and adds fluid and filtration work. Technicians re-inspect the CV/universal joints, check the transfer case fluid, and replace the engine air filter.

Transfer case fluid matters if you actually use your 4x4. Every time you engage four-wheel drive on a snowy back road in Norton or a sandy access route, that fluid is working. Clean fluid keeps the system shifting smoothly between modes.

At the major high-mileage interval, your Grand Cherokee receives a full inspection along with several component replacements: spark plugs, an engine coolant flush and replacement, and a new PCV valve.

Think of this visit as a reset. Fresh plugs restore smooth ignition and fuel efficiency, new coolant restores proper heat transfer and corrosion protection, and a new PCV valve keeps crankcase pressure regulated. Confirm your exact mileage trigger against your owner's manual, since it varies by engine and model year.

Several components wear out by time and exposure, not distance. Jeep's own service guidance recommends checking these on a schedule even if your odometer is barely moving.

• Cabin air filter: change at least once a year to fight bacteria, odors, and allergens, and to keep demisting quick.
• Air conditioning system: have it assessed at least every two years, and run the A/C for ten minutes every couple of weeks year-round to extend compressor life.
• Battery: get an annual check on the battery and charging system, and have it tested at the start of winter. With regular use and proper maintenance, a battery can last four to five years.
• Wiper blades: check every six months. Blades average roughly 125,000 wipes in six months and also degrade at rest from heat, cold, dust, and UV. Always replace them in pairs.
• Shock absorbers: have them checked regularly and replace in pairs, along with the end-of-travel buffers and dust caps.

Now that you know the maintenance schedule for your Jeep Grand Cherokee, we're going to go over some signs that your Jeep may need to be brought in for service.

If you're cruising down the road and notice any of the following, you may need to schedule an appointment at our service center.

• Squealing or buzzing noises
• Your check engine light comes on.
• Excess vehicle exhaust
• Poor fuel economy

Your Jeep may need a service as simple as an oil change or fluid check. No matter the circumstance, it's always best to bring your Grand Cherokee in, so we can get it back in shape and on the road.

At our dealer, we offer a full-service maintenance menu and a team of expert technicians to take care of your Jeep Grand Cherokee. We also offer Jeep service specials, so check back often when maintenance needs arise.

Some of our amenities include:

• Shuttle service
• Rental vehicles
• Mopar® accessories
• Drop-off service
• Free Wi-Fi

Contact us today to learn more about our services!