TCM shift failure and unavailable recall parts
POWER TRAIN
32 NHTSA complaints · 2013-06 → 2023-02
“THE TRANSMISSION CONTROL MODULE (TCM), PART OF THE COMPUTER, FAILS AND MANIFESTS AS A FAILURE TO SHIFT FROM 1ST TO 2ND, OVER REVVING, LOUD THUDS/CLUNKS WHEN IT DOES SHIFT FROM 1ST TO 2ND. COMPUTER (TCM) CAN BE RESET IF BATTERY (+) DISCONNECTED AND GROUNDED OUT”
“THE PCM USED WITH AUTOMATIC TRANSMISSIONS HAS A SERIOUS AND VERY COMMON FAILURE. CHRYSLER HAS KNOWN SINCE 2006 AND HAS MADE NO EFFORT TO DATE TO RECTIFY THE ISSUE. THE TCM SIDE (INTERNAL WITH THE PCM) HAS A PROBLEM THAT CAUSES HARSH SHIFTING ISSUES”
“TL* THE CONTACT OWNS A 2006 JEEP WRANGLER. WHILE ACCELERATING FROM A COMPLETE STOP, THE TRANSMISSION SHIFTED VIOLENTLY INTO SECOND GEAR. THE ENGINE BEGAN TO REV RAPIDLY”