2012 Jeep Wrangler JK Factory Service Manual 21 - Transmission and Transfer Case

AUTOMATIC TRANSMISSION - GENERAL CONDITIONS

AUTOMATIC TRANSMISSION - GENERAL CONDITIONS

CAUTION:

Before attempting any repair on an automatic transmission, check for Diagnostic Trouble Codes with the appropriate scan tool.

Transmission malfunctions may be caused by these general conditions:

Diagnosis of these problems should always begin by checking the easily accessible variables: fluid level and condition, gearshift cable adjustment (if equipped) and transmission fault codes using the appropriate scan tool. Then perform a road test to determine if the problem has been corrected or if more diagnosis is necessary.