2017 Z06 Transmission Problems
03-20-2017, 04:37 PM
#1
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2017 Z06 Transmission Problems
New 2017 Z06. At approximately 1,300 miles. The transmission locked up in 4th gears (automatic) during driving. Start from a dead stop: Locked in 4th gear, Tried manual mode and paddles with no help. Drove it to the nearest stopping point. Turn Ignition off and cycled gear shifter thru Park, Neutral, and Reverse. Back to drive or manual - still stuck in 4th. Check engine lite came on. All engine temps and pressures normal. Engine ran good with no clear issues. Towed to Chevrolet Dealership. The next all normal where it currently sits at the dealership. This is an ominous sign of major Z06 problems!
03-20-2017, 05:05 PM
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03-20-2017, 08:21 PM
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03-20-2017, 09:41 PM
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Good luck getting it sorted out.
Good luck getting it sorted out.
03-20-2017, 11:07 PM
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Moving this to C7 Tech/Performance.
03-21-2017, 11:45 AM
#7
Locking into 4th gear is the protective limp mode for the 8L90 transmission and is designed to prevent you from being stranded while protecting the transmission from further damage. A common reason for this is loss of communications with the transmission as those who use Range anti-AFM devices have found out. The stored codes should indicate the issue and it will be sorted out. With this low mileage it is quite possibly a connector that wasn't seated properly during assembly.
03-24-2017, 07:14 PM
#8
New 2017 Z06. At approximately 1,300 miles. The transmission locked up in 4th gears (automatic) during driving. Start from a dead stop: Locked in 4th gear, Tried manual mode and paddles with no help. Drove it to the nearest stopping point. Turn Ignition off and cycled gear shifter thru Park, Neutral, and Reverse. Back to drive or manual - still stuck in 4th. Check engine lite came on. All engine temps and pressures normal. Engine ran good with no clear issues. Towed to Chevrolet Dealership. The next all normal where it currently sits at the dealership. This is an ominous sign of major Z06 problems!
If you have a good dealer, they should find the problem pretty much instantly by reading the codes set in the computer. I didn't even get to finish a cup of coffee in the waiting area and they came back with the diagnosis!!