LIFTER, Hydraulic Roller Deactivating Please do not replace MDS lifters because the disconnecting pin is not lined up, this is normal and not a defect.
full bulletin at NHTSA ↗2018 Jeep Grand Cherokee suspension problems
severe Owners of the 2018 Jeep Grand Cherokee have filed 14 NHTSA complaints about the suspension at roughly $900 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See suspension across all vehicles →
Complaints
14
Recalls
0
Avg fix
$900
| Model year | suspension complaints |
|---|---|
| 2014 Grand Cherokee | 43 |
| 2015 Grand Cherokee | 14 |
| 2017 Grand Cherokee | 8 |
| 2018 Grand Cherokee (this page) | 14 |
| 2019 Grand Cherokee | 10 |
| 2020 Grand Cherokee | 4 |
| 2021 Grand Cherokee | 17 |
| 2022 Grand Cherokee | 17 |
1injury
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering suspension on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Front Click Noise at Low Speed Turns This bulletin involves installing a friction disc kit on both front hub bearings and rotors. The customer may comment on the following: When making a sharp turn at low speed (parking lot) maneuvers, a click noise is heard. Most of the time the noise can be heard if the windows are open.
full bulletin at NHTSA ↗Air Suspension System Diagnosis
full bulletin at NHTSA ↗Air Suspension Inoperative And Or Compressor Freeze Up Or Sticking In Cold Weather.
full bulletin at NHTSA ↗Air Suspension Inoperative And Or Compressor Freeze Up Or Sticking In Cold Weather.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2018 Jeep Grand Cherokee suspension has two categories of hard-failure problems. First, the air suspension system is chronically unreliable. Starting from 2018 onward, owners get persistent "SERVICE AIR SUSPENSION IMMEDIATELY" warnings, sometimes multiple times per startup. The suspension locks into wrong modes—Park/Exit, Offroad II, 4WD—and won't rise or lower. It drops suddenly, drives rough, and behaves inconsistently depending on weather. Dealers have replaced valve blocks ($1,800+) and quoted compressor replacements ($3,400+) without resolving the issue. Owners report the system works intermittently at best. Multiple repair attempts fail; symptoms return within weeks. Dealers admit wiring problems but can't fix them permanently. Front air springs and struts fail at what owners describe as a high rate, with parts backordered.
Second, the front suspension structure itself breaks. Front lower control arms snap clean in two during normal driving (40–55 mph, clear conditions, no impact). Ball joints fail suddenly. One wheel separated from the vehicle. Owners heard cracking or popping sounds beforehand. These failures cause loss of control, brake lockup, and secondary damage to rotors, tires, and fenders. Multiple owners asked why recalls weren't issued for known suspension failures affecting their vehicles.
Same Jeep Grand Cherokee suspension reports on nearby years: 2015 · 2021
Failure modes owners describe
Air Suspension Warning and System Malfunction
Air suspension system triggers 'SERVICE AIR SUSPENSION IMMEDIATELY' warning messages. Vehicle heights become unstable, locking into incorrect modes (Park/Exit, Offroad II, 4WD) or failing to raise/lower. Owners report the system works intermittently and is affected by climate conditions. Multiple dealer visits and repair attempts (valve block replacement, compressor inspection quoted) have not resolved the issue.
When: Starting around 2018 (purchase) and recurring throughout vehicle life; mileage ranges 34,008 to 96,000 miles
Symptoms owners cite: Dashboard warning 'SERVICE AIR SUSPENSION IMMEDIATELY'; Vehicle stuck in incorrect suspension mode (Park/Exit, Offroad II, 4WD); Ride height unstable or vehicle cannot raise/lower properly; Vehicle drops and drives rough; Intermittent operation depending on weather; Loud compressor noise; Grinding sound on startup
Codes mentioned: C1556
Repairs/costs cited: Dealer replaced valve block ($1,800+); quoted air compressor replacement ($3,400+); dealers unable to pinpoint root cause or provide definitive diagnosis; parts backordered
Front Lower Control Arm and Ball Joint Failure
Front lower control arms and ball joints fracture or snap during normal driving. Two documented cases show ball joints separating completely, causing wheel rim damage and loss of control. Owners reported hearing cracking or popping noises before failure. One incident occurred at 40-45 mph on a clear day with no road hazards; another at 55 mph.
When: 44,000 miles; 40-45 mph city driving; one incident at ~34,000 miles with reported prior popping noises
Symptoms owners cite: Cracking or popping noise from front suspension, especially when turning or hitting bumps; Front wheel rim damage or separated from vehicle; Vehicle pulls to one side; Hard impact or loud noise while driving; Steering wheel shaking; Brakes may become stuck after failure
Repairs/costs cited: Front lower control arm broke in half; ball joints snapped; tire sidewalls slashed; fender, shock, rotor damage; repairs not documented by owners
Front Air Spring and Strut Failure
Front air springs and struts fail prematurely. Dealer reports indicate a high failure rate affecting both left and right sides, with parts frequently backordered. Owners characterize this as widespread component failure affecting system reliability.
When: No specific mileage given; described as occurring at high rates across vehicles
Symptoms owners cite: Air suspension warning message; Vehicle unable to maintain proper ride height; System inoperative
Repairs/costs cited: Front air springs backordered; struts require replacement; compressor may also require replacement
Recurring Electrical/Sensor Issues (Air Suspension and Anti-Lock Brake Warnings)
Multiple warning lights and messages activate simultaneously (air suspension, anti-lock brake system, check engine) and persist or return despite multiple dealer repairs. Dealers identify a 'wiring issue' but repairs are temporary; symptoms recur within weeks to months.
When: Over a year of recurring issues after initial failure
Symptoms owners cite: 'SERVICE AIR SUSPENSION IMMEDIATELY' warning; 'SERVICE ANTI-LOCK BRAKE SYSTEM' warning; Check engine light; All-wheel drive function lost
Repairs/costs cited: Dealership performed repairs twice, attributed to wiring issue, but problem returned after one month each time
ADAS Parking Sensor and Active Park Assist Module Failures
Front parking sensor and Active Park Assist modules fail or operate intermittently. Owner reports these are critical safety systems that could mislead drivers during parking operations.
When: 63,263 miles (parking sensor); 96,000 miles (Active Park Assist module)
Symptoms owners cite: Parking sensor malfunction; Active Park Assist module failure; Service request pop-up message; Intermittent operation
Repairs/costs cited: Inspected by dealer; exact diagnosis not provided
Synthesized from 14 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 0 most recent
Had suspension trouble with your 2018 Jeep Grand Cherokee?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the suspension problem on the 2018 Jeep Grand Cherokee?
It's a meaningful issue. 14 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $900.
At what mileage does the suspension typically fail?
Based on the 14 complaints filed, suspension issues most often appear around 32,373 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $900 for suspension repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to suspension?
No active recalls currently cover suspension issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Jeep/Grand Cherokee.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.