| Issue ID | 1691450 |
| Internal NHTSA # | 11359961 |
| Manufacurer | Chrysler (FCA US LLC) |
| Brand | JEEP |
| Model | GRAND CHEROKEE |
| Model Year | 2006 |
| File date | 18/09/20 |
| Component | POWER TRAIN |
| Product type code | VEHICLE |
| Description of the problem | The pcm is not communicating between the computer and the transmission. It's making the transmission jump, loose power while driving, warning saying transmission over temp (can come on even when you just start driving), code p1603-pcm internal dual port ram, communication failure. The rpm's have ramped up and down while at a stop, loose power while driving, and can even turn off while driving. Eventually the alternator went bad. Replaced alternator and battery have been replaced 8/16/20. Eventually if the ecm is not replaced then it'll kill the vehicle. The transmission over temp started around 60,000 miles. This issue has steadily gotten worse overtime, became more frequent, and more dangerous. I've read of lots of people have the same issue and there's been no recalls. I feel there should be a recall for safety issues. Please look into the number of people having the same issue. |
| Vehicle Mileage at Failure | 60000 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | LONG BEACH, CA |
| VIN pattern | 1J4HS48N76CXXXXXX |
| Was vehicle invloved in a crash? | N |
| Was vehicle involved in a fire? | N |
| Was incedent reported to police? | N |
| Was medical attention required? | N |
| Was part original equipment? | |
| No. of injured persons | |
| No. of fatalities | |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
| Number of cylinders | |
| Drive train type | |
| Transmission type | |
| Vehicle speed | 15 |
| 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 |