Power issue and transmission jerking - Need your help!

If the front end was smushed, there may be a loose intercooler hose or broken intercooler. They've blown off or blown holes in them from time to time, and the 1.4 has no power of its own without the turbo's backup.

Wheel sensor codes could be related to transmission shift quality. As to why they're not registering - you may need to check the wiring or if the axles were replaced with some aftermarket junk that don't read correctly for the ABS sensors. Seen it before, but not on a Cruze.

Jerking at a stop is often the clutch packs in the transmission grabbing when they shouldn't be. Unfortunately a common issue with the 2013-2014 automatics; we don't know if they changed suppliers or what. Many have had them rebuilt under warranty, and it's only solved the issues for some.

The stock pads/rotors are junk. I had a 2016 Limited Cruze with 20K on it and it had pulsing/shaking brakes; my 2012 did about the same by the same mileage. Pick up some Centric Premium rotors and your choice of pads and enjoy a smooth-stopping Cruze. Make sure the rear drums are adjusted correctly - there's a thread on the forum here - even by 2016, the factory still didn't have it right, and I could feel the rear brakes on the rental start to grab when braking hard.

Thank you for such a detailed breakdown.

I noticed outside temperature has a pretty big effect on the power and shifting issues. Yesterday we had 90+ outside and the car felt terrible, later on that night we drove it again and everything seemed fine (shifting and power). The first transmission failed in death valey on a hot day. Perhaps im having a cooling issue?

Regarding the turbo components, Ive reaplced the intercooler intake pipe previously since it was cracked from the impact. Everything else seems to be fine. I feel that the power issues come more during the heat (testing this theory today)

How do I check the wiring of the axles exactly? I replaced the two front sensors with this

ABS Wheel Speed Sensor Front Left Right For Chevrolet Cruze Volt Buick Regal NEW | eBay

Im OK with the transmission slightly jerking at a stop, will replace the rorots to fix the breaking problem. Just really worried about the power and shifting, I feel the new transmission is going to fail soon with only a couple thousand miles on it.