| Issue ID | 1005563 |
| Internal NHTSA # | 10536893 |
| Manufacurer | Chrysler Group LLC |
| Brand | JEEP |
| Model | GRAND CHEROKEE |
| Model Year | 2012 |
| File date | 03/06/13 |
| Component | VEHICLE SPEED CONTROL |
| Product type code | VEHICLE |
| Description of the problem | Problem developed just after 10,000 miles with mild vibration on acceleration. Problem persisted and got worse. I had vehicle checked by dealer and head mechanic at 15,000 when in for oil change. Definitely was a problem, took a day to diagnose with help from jeep. /chrysler said it was failure of the transfer case/drivetrain control module. It took from june 25 until august 19 to obtain new module. During that time vehicle vibration worsened further requiring backing off on acceleration and then continuing acceleration to get up to highway speed. Very much like riding on a bad washboard road plus noise coming from under front and then additional noise from rear. When going up moderate inclines back end began strongly vibrating to the point where it felt back end was going to start hopping plus a clunk noise. Backing down acceleration and then reaccelerating would lessen problem but still made vibration. Final cause after repair: cause listed as broken propeller shaft with universal joints, replaced transfer case to rear axle; replace rear prop shaft due to carrier bearing failure causing vibration; replace final drive control module per diagnosis for shuttering in driveline. Vehicle has 17,578 miles at repair completion. Problem appears fixed in the first 500 miles i have driven since repair. |
| Vehicle Mileage at Failure | 10900 |
| Number of Occurences | 1 |
| Source of the issue | NHTSA WEB SITE |
| City and State | CONIFER, CO |
| VIN pattern | 1C4RJFCT8CCXXXXXX |
| Was vehicle invloved in a crash? | N |
| Was vehicle involved in a fire? | N |
| Was incedent reported to police? | N |
| Was medical attention required? | |
| Was part original equipment? | |
| No. of injured persons | 0 |
| No. of fatalities | 0 |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
| Number of cylinders | 8 |
| Drive train type | |
| Transmission type | |
| Vehicle speed | 0 |
| DoT tire identifier | |
| Tire size | |
| Location of tire code | |
| Type of tire failure code | |
| Was defective tire repaired? | |
| Date of manufacture | |
| Type of child seat code | |
| Type of restraint | |
| Dealer's name | |
| Dealer's telephone number | |
| Dealer's city | |
| Dealer's state code | |
| Dealer's ZIP code |