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 ↗2012 Jeep Grand Cherokee suspension problems
severe Owners of the 2012 Jeep Grand Cherokee have filed 29 NHTSA complaints about the suspension, typically surfacing around 72,000 miles at roughly $900 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See suspension across all vehicles →
Failure mileage
Complaints
29
Recalls
0
Avg fix
$900
| Model year | suspension complaints |
|---|---|
| 2008 Grand Cherokee | 9 |
| 2011 Grand Cherokee | 37 |
| 2012 Grand Cherokee (this page) | 29 |
| 2013 Grand Cherokee | 6 |
| 2014 Grand Cherokee | 43 |
| 2015 Grand Cherokee | 14 |
1crash
3injuries
What stands out
Owners have filed 29 suspension complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
No new NHTSA suspension complaint has been filed on this vehicle in over 4 years — the issue may be aging out of the active population.
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.
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 ↗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
Owners of 2012 Grand Cherokees report a pattern of suspension problems that recur despite repeated dealer attention. Rear shock absorbers consistently leak oil and produce clunking or grinding noises; dealers have replaced them multiple times on single vehicles with only temporary relief before noise returns. One owner reports three replacement attempts over 4–6 months, with a Jeep warranty manager stating the problem is endemic to 2012 model year and cannot be fixed.
The air suspension (Quadra-Lift) system exhibits two major failure modes. In cold weather below 20–22°F, the pump fails to inflate the front end, leaving the rear high and front dangerously low—a TSB (08-034-12) exists but Jeep has not issued a recall despite the safety hazard. At highway speeds, the air suspension pump can fail suddenly, dropping the vehicle onto bump stops; one vehicle with fewer than 3,000 miles required correction of a backward-installed suspension tube. Air suspension control modules have failed, requiring expensive replacement ($749 reported for active dampening module) and extended wait times for parts.
One owner reported catastrophic structural failure: rear suspension components detached from the differential during highway driving, striking the muffler and exhaust. Another described rear subframe forward mounts ripping out of the vehicle body when air suspension overinflated. Owners cite shocks on back order for 6–8 weeks, missing parts delays repairs indefinitely, and suspension problems persist beyond manufacturer warranty expiration.
Same Jeep Grand Cherokee suspension reports on nearby years: 2011 · 2014 · 2015
Failure modes owners describe
Rear shock absorber leakage and noise
Rear shock absorbers leak oil and produce clunking, grinding, or popping noises from the rear suspension. Owners report the noise returns repeatedly even after dealer replacement of the shocks multiple times.
When: Begins early in ownership; complaints cite repeated occurrences at various mileages, with some noted around 2 years old
Symptoms owners cite: Loud clunking or grinding noise from rear of vehicle; Rattling or popping sounds when turning or starting engine; Noise returns after dealer repair; Loose feeling in wheels, vibration through steering wheel when braking
Repairs/costs cited: Dealer replacements of rear shock absorbers (reported 2–3 times per vehicle with minimal lasting effect); parts availability issues noted; approximate cost not disclosed in shock-only repairs
Recalls/TSBs owners mention: Jeep warranty manager in one case stated this is a widespread problem on 2012 model year with no permanent fix; defective absorber issue identified in manufacturer TSB; multiple dealers unable to keep shocks in stock
Air suspension system failure in cold weather
Quadra-Lift air suspension system fails to inflate or maintain pressure below 20°F to 22°F, causing the front end to drop or the suspension to bottom out. The system displays cooling warnings and requires warm-up or dealer service to resume function.
When: Occurs seasonally in winter months; TSB 08-034-12 issued; complaints from customers in Northern ND and other cold regions
Symptoms owners cite: Front suspension drops or bottoms out in cold weather (below 20–22°F); Warning message 'Air Suspension System Cooling Down' or 'Service Air Suspension' illuminates; Pump will not inflate front suspension, leaving rear high and front extremely low; Severely limited visibility and poor road handling
Repairs/costs cited: Dealer replaced fuses and air control modules; TSB 08-034-12 exists but owner must often pay for repair; no permanent fix identified in narratives
Recalls/TSBs owners mention: TSB 08-034-12 issued; Jeep acknowledges issue but has not issued recall despite safety risk in cold climates
Air suspension pump failure at speed
Quadra-Lift air suspension pump fails while driving, causing front or rear end to drop suddenly and suspension to bottom out on bump stops. Vehicle loses ride height compliance and control.
When: Occurs at highway speed (45–75 mph) or during normal driving; failure mileage varies from <3,000 miles to 72,000 miles
Symptoms owners cite: Abnormal grinding noise on startup or shutdown of vehicle; Service suspension warning light illuminates while driving; Loud noise like driving over rumble strip at highway speed; Front or rear end drops suddenly; vehicle bounces repeatedly; Vehicle attempts to adjust height at unsafe speeds (dashboard shows adjustment in progress)
Repairs/costs cited: Air suspension/compressor replacement quoted at ~$1,600; parts often on back order; one vehicle with <3,000 miles required dealer correction of backward-installed suspension tube
Recalls/TSBs owners mention: No official recall; dealer typically corrects installation errors only; one dealer requested Jeep to cover repair cost minus $100 deductible
Air suspension control module electrical failure
Air suspension control or transfer case control module fails, triggering warning lights and suspension malfunction. Module is located behind dashboard, requiring extensive disassembly to replace.
When: Varies from early in ownership to higher mileage; one failure at ~72,000 miles
Symptoms owners cite: Check engine light or air suspension warning illuminates; Lift feature operates intermittently or not at all; Multiple warning codes related to ground or electrical system; Vehicle stalls after recall work or repair attempt
Codes mentioned: Related to bad ground, NHTSA Campaign 15V115000 (electrical system)
Repairs/costs cited: Active dampening module replacement cost $749; air control module replacement attempted; required 2 days to source part and vehicle required dashboard removal; dealer stated module replacement was first they had performed; transfer case control module failure diagnosed but not repaired in some cases
Recalls/TSBs owners mention: Recall 15V115000 (electrical system) applied; warranty claim denied in some cases for module failure as 'not part of normal wear'
Rear suspension structural failure and crossmember collapse
Rear suspension components, crossmember, and chassis structural supports break or collapse under normal driving. In one case, rear suspension detached from differential, striking muffler and exhaust; in another, forward mounts on rear subframe ripped out when air suspension overinflated.
When: Occurred during highway driving at moderate speed (45–50 mph); another during low-speed transition from gas station
Symptoms owners cite: Loud impact noise from rear of vehicle; Chassis visibly cracked on both sides; Rear suspension components rest on differential and muffler; Structural supports (crossmember bushings) broken or collapsed; Subframe mounting points torn from body
Repairs/costs cited: Not repaired in narratives; damage included structural breaks requiring potential frame replacement and exhaust/drivetrain rebuilding
Suspension control module stalling and restart difficulty
Vehicle experiences stalling or shutdown, particularly after air suspension repairs or control module replacement. Vehicle may require multiple restart attempts and lose power steering assist when stalled.
When: Post-repair stalling; one case documented after recall 15V115000 electrical system repair
Symptoms owners cite: Vehicle stalls while driving or at stop; Three or more restart attempts required; Difficulty steering (power steering disabled) during stall; Engine cuts off unexpectedly at various speeds
Repairs/costs cited: Repair attempted after recall 15V115000; no permanent fix documented
Recalls/TSBs owners mention: Recall 15V115000 applied but did not resolve stalling issue
Rear suspension height imbalance and sag
Rear suspension sags or remains at lower-than-normal height when vehicle is parked, or front and rear suspension heights become unequal during normal operation. Vehicle may show uncontrolled bouncing or height oscillation.
When: Noted on vehicles at lower mileage; one case at ~39,600 miles
Symptoms owners cite: Rear suspension sags on one side when parked; Front rides high while rear rides low; Vehicle bounces uncontrollably over bumps; Uneven ride height
Repairs/costs cited: Air compressor replacement attempted in one case but vehicle not repaired; air suspension repair quoted but not completed
Front air suspension strut failure and hissing
Front air suspension struts fail suddenly, releasing pressurized air with audible popping and hissing. Both front struts may fail together, leaving vehicle undrivable.
When: Occurred during normal driving; one case reported hearing 'gnarly pop' during routine operation
Symptoms owners cite: Audible pop from front suspension followed by hissing air; Front suspension loses all height; Vehicle undrivable after failure
Repairs/costs cited: Vehicle awaiting shop inspection; owner expresses concern about repair cost
Synthesized from 29 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Symptoms are identical to recall W47, Where loss of engagement between transmission and the differential inside PTU (Power Transfer Unit)
Had suspension trouble with your 2012 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 2012 Jeep Grand Cherokee?
It's a meaningful issue. 29 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $900.
At what mileage does the suspension typically fail?
Across the 20 complaints that reported odometer mileage, most suspension failures cluster between 39,600 and 120,000 miles, with the median around 72,000. A quarter of owners report trouble before 39,600; a quarter make it past 120,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
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/2012/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.