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What 126 owners told NHTSA about the 2015 Dodge Challenger Srt Demon

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (126)Crash / fire / injury (21)Transmission & drivetrain (29)Electrical system (26)Engine (26)Brakes (12)Airbags (10)Fuel system (10)Lights (7)Electronic Stability Control (esc) (6)Seats (6)Steering (6)

Newest first · 126 complaints · page 6 of 6

Feb 4, 2015Transmission & drivetrain

IMMEDIATELY AFTER PURCHASING VEHICLE, VERY HARSH DOWNSHIFTS AND UPSHIFTS HAVE BEEN NOTICED WITH THE VEHICLE'S 8 SPEED AUTOMATIC TRANSMISSION ESPECIALLY UNDER LIGHT ACCELERATION AND DECLARATION AT SPEEDS LOWER THAN 40MPH . DEALERSHIP HAS ATTEMPTED SOFTWARE RESET SEVERAL TIMES WITH NO EFFECT. UPON 4TH VISIT TO DEALERSHIP FOR SAME ISSUE, SERVICE TECH HAS IDENTIFIED THE PROBLEM AND CONFIRMED THAT THE 8 SPEED TRANSMISSION IS NOT FUNCTIONING IN THE SAME APPROPRIATE WAY AND SHIFTING IS "SEVERE" . PROBLEM IDENTIFIED BY DEALER IS THE VALVE BODY , HOWEVER CHRYSLER HAS DENIED REPLACEMENT OF THE PART INSTEAD ASKING THAT THE CAR BE DRIVEN FOR AN ADDITIONAL THREE THOUSAND MILES, BEFORE ANY REPAIR IS CONSIDERED , ESSENTIALLY BREAKING THE TERMS OF THE WARRANTY BY ASKING A CAR WITH A BAD TRANSMISSION TO BE DRIVEN FOR THOUSANDS OF MILES. DEALERSHIP CONFIRMED PROBLEM EXISTS , HOWEVER THEIR HANDS CURRENTLY TIED BY CORPORATE. *TR

NHTSA ODI 10681151

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Working with the data? Download all 126 complaints as CSV · fetched from NHTSA July 23, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2015 Dodge Challenger Srt Demon verdict →