Issue ID | 1033912 |
Internal NHTSA # | 10560281 |
Manufacurer | Chrysler Group LLC |
Brand | JEEP |
Model | GRAND CHEROKEE |
Model Year | 2011 |
File date | 04/01/14 |
Component | SERVICE BRAKES |
Product type code | VEHICLE |
Description of the problem | I am second owner of a 2011 jeep grand cherokee that at the time of the following incident had just under 35k miles but was 2 months over the warranty period. The temperature the morning of jan 4, 2014 was between -2 & -4 f. I started jeep and proceeded to drive to end of block. When depressing and/or releasing brake i heard an air leak from under the dash. I returned home and parked the car. The next day the outside temperature had gone above 5 degrees f. The car no longer made the air leak sound. I dropped vehicle off evening of jan 6 to local mechanic. Temperature on jan 7 dropped to 5 f. Mechanic indicated air leak condition was noted and indicated issue was power brake booster. They suggested i contact jeep to see if they would make repairs. I had discussions with chrysler/jeep and jeep dealer about issue. I did not mention that i had taken the vehicle to a mechanic. I advised them that indications were a bad power brake booster and that i felt this was a latent failure that would only show up at subfreezing temperatures. Chrysler/jeep indicated since auto had 35k miles but exceeded 36 months, the vehicle was not under warranty and jeep would not diagnose or cover cost of repair without me paying. I had replacement of power booster done by the local mechanic on jan 15. They determined there was water in the booster. It was their diagnosis that the booster had a leak that allowed water to enter. When temperature dropped to those noted, the booster would exhibit an air leak. I have subsequently searched the condition on several chrysler vehicle internet forums and have found that this booster failure condition is described almost identically to what i encountered. I have a concern that this is a design issue and the problem is not detectable unless the temperature drops below a certain degree. This could result in a power brake failure. |
Vehicle Mileage at Failure | 34900 |
Number of Occurences | 1 |
Source of the issue | NHTSA WEB SITE |
City and State | OCEAN CITY, NJ |
VIN pattern | 1J4RR6GG4BCXXXXXX |
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 | 29/06/24 |
Was original owner? | N |
Anti-lock brakes | N |
Cruise control | N |
Number of cylinders | 6 |
Drive train type | |
Transmission type | |
Vehicle speed | 15 |
DoT tire identifier | |
Tire size | |
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Type of tire failure code | |
Was defective tire repaired? | |
Date of manufacture | |
Type of child seat code | |
Type of restraint | |
Dealer's name | |
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