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full bulletin at NHTSA ↗2008 Chrysler Aspen powertrain problems
severe Owners of the 2008 Chrysler Aspen have filed 14 NHTSA complaints about the powertrain, typically surfacing around 72,000 miles at roughly $2,500 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See powertrain across all vehicles →
Failure mileage
Complaints
14
Recalls
0
Avg fix
$2,500
| Model year | powertrain complaints |
|---|---|
| 2007 Aspen | 13 |
| 2008 Aspen (this page) | 14 |
| 2009 Aspen | 10 |
2crashes
1injury
When does it fail?
Of the 14 powertrain complaints filed for the 2008 Chrysler Aspen, here's the actual mileage breakdown — failures cluster heaviest at 150,000+ mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA powertrain complaint has been filed on this vehicle in over 7 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Transmission Kit with Torque Converter 1. All Promaster (VF) 3.6L/62TE equipped vehicles. If the transmission bracket to the transmission case fasteners are removed during servicing, the fasteners (Part Number 06511385A$) are one-time usage. Vehicles built prior to 10/23/2015 requires Service Kit PN 68461214AA; includes Transmission Isolator PN 68264483AA, and Adaptation Bracket 68264479AA and Fastener Service Kit PN 68329056AA Vehicles built after on or after 10/23/2015 will require only the Fastener Service Kit PN 68329056AA. 2. All 3.6L/62TE equipped vehicles. If the vehicle you are repairing has a crack in the flex plate or failed pump bushing inspect and confirm that both (2) dowel pins
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2008 Chrysler Aspen's powertrain has multiple critical failure modes. The most common is involuntary transfer case motor engagement—the 4WD, 4WD Low, or towing neutral mode engages without driver input while driving, during low-speed turns, at highway speeds, and even while parked. Owners say this happens hundreds of times across the Aspen and Dodge Durango platform. When 4WD Low engages at highway speeds, it locks all differentials, making steering dangerously stiff and risking catastrophic transmission damage and loss of control. Shifting back to AWD sometimes requires restarting the engine. Dealers replace the transfer case motor, but owners report the electrical problem returns.
Rear differential pinion nuts back off across multiple mileages (49k to 170k), causing fluid loss, grinding noise, violent jerking on acceleration, and stalling. Owners report this mirrors a recall on 2009 and earlier models, but dealerships say the 2008 Aspen has no applicable recall despite identical symptoms.
One catastrophic case involved uncontrolled rapid acceleration when shifting from Park to Drive and then Reverse, causing the vehicle to crash into a garage wall and then a house, striking a child. Another owner reported complete power loss while accelerating onto a highway.
Repair costs for differential work alone range $1,200 to $2,600, and failures recur after repair.
Same Chrysler Aspen powertrain reports on nearby years: 2007 · 2009
Failure modes owners describe
Transfer Case Motor Erratic Engagement
Transfer case motor shifts involuntarily into 4WD, 4WD Low, or towing neutral mode without driver input. Owners report the motor engaging during normal driving, low-speed turns, highway speeds, and while the vehicle is parked. This is described as a widespread issue affecting many Chrysler and Dodge 4WD vehicles.
When: Occurs unpredictably during operation and at rest; one case noted at 191,000 miles
Symptoms owners cite: Unintended engagement of 4WD or 4WD Low mode while driving; Shift into towing neutral mode disabling Park function; Motor engages when vehicle is locked via key fob; Difficult steering when 4WD Low engages (lack of differential operation); Shifting into 4WD Low at highway speeds; Burning rubber odor before failure
Repairs/costs cited: Chrysler/Dodge perform transfer case motor replacement, which owners report as temporary fix; underlying electrical problem reportedly persists
Recalls/TSBs owners mention: Transfer case motor replacement performed by dealers; described as alleviating issue temporarily
Rear Differential Pinion Nut Loosening
Pinion nut at rear differential backs off, causing loss of differential fluid and mechanical failure. Owners report this across multiple mileages and describe it as similar to a recall affecting other Chrysler/Dodge models (2009 and earlier). Loose nut can damage differential bearings and lock up the differential.
When: Reported at 49,000 miles; 50,000+ miles; 65,000 miles; 75,000 miles; 170,000 miles
Symptoms owners cite: Clunking noise from rear end; Differential fluid leakage; Noise and violent jerking during acceleration after slowing down; Stalling while driving; Loud noise before stall; Traction control warning light illumination
Repairs/costs cited: Pinion nut tightening and pinion seal replacement; repairs range from $1,200 to $2,600; issue recurred in at least one case after initial repair
Recalls/TSBs owners mention: Vehicle not on recall list despite matching recall descriptions for other model years; manufacturer offered no assistance in at least one case
Transmission Rapid Acceleration on Shift
Vehicle rapidly accelerates when shifting from Park to Drive or Park to Reverse without driver input. One case resulted in collision with garage wall and home, striking a child.
When: 72,000 miles
Symptoms owners cite: Unintended rapid acceleration when shifting from Park to Drive; Unintended rapid acceleration when shifting from Park to Reverse; Vehicle not responding to driver control during acceleration
Repairs/costs cited: Vehicle was not diagnosed or repaired; manufacturer was notified
Recalls/TSBs owners mention: Manufacturer notified; no response documented
Complete Power Loss While Driving
Engine and all electronics shut down unexpectedly while accelerating onto highway. Vehicle had to coast to shoulder and be restarted. No repeat incidents or diagnostic findings.
When: Occurred once; no mileage provided
Symptoms owners cite: Sudden complete loss of engine power; Loss of all electronics power; Engine shutdown without warning
Repairs/costs cited: Mechanic inspection found no fault
Transmission Drivetrain Failure
Drivetrain fails and requires replacement at low mileage. One case involved stalling and traction control warning; failure recurred after repair.
When: 75,000 miles
Symptoms owners cite: Vehicle stalls at 30 mph; Traction control warning light illumination; Failure recurrence after repair
Repairs/costs cited: Drivetrain replacement performed
Synthesized from 14 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
I recently bought my chrystler aspen and as I was driving down the road I noticed a clunk on the rear end. I checked to make sure the spare tire or muffler wasn't loose and even took it to a local shop where we found a bolt located right at the rear differential that appears to be loose causing that clunking noise. I went online to see if any other chrystler owners had the same issue and found…
Had powertrain trouble with your 2008 Chrysler Aspen?
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 powertrain problem on the 2008 Chrysler Aspen?
It's a meaningful issue. 14 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Across the 13 complaints that reported odometer mileage, most powertrain failures cluster between 60,000 and 162,800 miles, with the median around 72,000. A quarter of owners report trouble before 60,000; a quarter make it past 162,800. 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 $2,500 for powertrain 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 powertrain?
No active recalls currently cover powertrain 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/2008/Chrysler/Aspen.
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.