what causes "service 4wd sytem" light to flash, alarm binging and transmission not shift?

Asked by May 13, 2018 at 09:08 PM about the 2013 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

parked my 2013 jeep gc Laredo on Friday. got in it on Sunday for church and service 4wd sytem started flashing and alarm binging. shifted hard into drive when I put it in gear. drove it down the road and it wouldn't shift gears. no forewarning of any trouble. has 78,000 miles. have any ideas what's going on?

2 Answers


Did you bump anything?


You will need to take it to a Dodge/Jeep dealership and have the TCU module flashed with an update to correct this problem.

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