Caliber Trans Grinding & Emergency Mode While Shifting

I experienced similar symptoms on my 2013 Dodge Avenger with the 2.4L engine. The transmission issues started exactly the same way, emergency mode activation, warning lights, and rough shifting. The root cause turned out to be a damaged wiring harness connecting to the transmission control module. The insulation had worn through, causing intermittent connection issues and false readings. The grinding during gear changes occurred because the transmission was getting incorrect signals. While this sounds like a simple fix, it required removing several components to access the wiring. The transmission needed to be partially lowered to properly repair and reroute the harness. Most importantly, the issue was putting excessive stress on the transmission and could have caused permanent damage if left unrepaired. Your symptoms align closely with either a wiring issue or a faulty transmission control module. The radiator coolant circulation and transmission oil cooling system should also be inspected, as overheating can trigger similar protective measures. Before replacing major components, have a transmission specialist perform a proper diagnostic test with a scanner. This will pinpoint whether its an electrical issue or mechanical failure within the transmission itself. This is a serious issue that requires immediate attention to prevent potential transmission failure. Continuing to drive in emergency mode risks causing extensive internal damage to the transmission.

Thanks for sharing that experience with the wiring harness. Had almost identical symptoms with my Caliber last winter, rough shifting, emergency mode, the whole deal. The radiator repair turned out to be related in my case too, since a coolant leak was causing the transmission to overheat and trigger the safety mode. Would be really helpful to know what the total repair cost was in your case. Did you need to replace any additional parts after fixing the wiring? My pressure sensor also needed replacement during the repair, and just wondering if thats a common occurrence with these issues.

Since having my Avenger checked by a qualified mechanic, the radiator oil pressure issue has been fully resolved. The repair focused on a faulty cable connection that was causing the sensor to send incorrect readings to the transmission control module. The total cost came to 95€ for fixing the connection, which was much more reasonable than I initially feared. No additional parts were needed in my case, though pressure gauge readings were thoroughly tested to ensure everything worked correctly. The leak detection process showed no further issues with the coolant system or oil cooler. This repair completely eliminated the transmission problems and emergency mode warnings. Having proper pressure readings restored normal transmission operation and smooth gear changes. The grinding noise disappeared immediately after the fix. Your experience with the coolant leak causing overheating makes perfect sense, as these systems are interconnected. Regular pressure checks and coolant level monitoring can help prevent similar issues from developing in the future.

Thanks everyone for the detailed responses! Finally got my Caliber fixed last week and wanted to share the outcome. Took it to a new transmission specialist who actually listened to the symptoms. They found the cooling fan wasnt engaging properly, leading to transmission fluid overheating. The repair involved replacing the cooling fan assembly and a worn pressure sensor. Also discovered a small leak in the oil cooler line which was contributing to the problem. Total repair came to 450€, including parts and labor. Car shifts perfectly now, no more grinding or emergency mode warnings. The cooling system is working as it should, and transmission temperatures stay normal even during longer drives. Definitely worth getting it sorted by someone who knew what they were looking for rather than continuing with the previous mechanic who kept missing the real issue. Lesson learned about getting a second opinion when the initial diagnosis doesnt seem right. Could have saved some money if Id done this sooner, but at least its properly fixed now.