BloodVessel

CamGTP and newdude - Thank you for the fast response! OEM is hard to find like you said, think I'll order a NAPA.

2015 High Country 1/2 ton, 6.2l, 85,000 miles. Noticed temp gauge reading consistently about 190 degs, my geriatric brain remembers it used to run around 210 degs. So, I'm guessing I need to replace the thermostat? Now the questions: What brand/part# would you suggest? Should I change the Sensor at the same time? If so, brand/part# suggestions please. Thanks for any help offered!

Needing help with what happened with my truck yesterday........Drove approx 30 miles and parked, noticed I parked like the 65 year old I am, and immediately got back in to move truck. Inserted key and turned - NOTHING. No lights on dash, no radio, it was like someone took the battery out. Checked to make sure battery was still intact (it was) and tried to start again. This time it started, but all personal setting were gone. Also got a message on DIC to lower and raise driver side window. Had to stop on way home and had another event. This time got a "service security system" message on DIC. Gpt hpme and changed to alternate key and so far everything works ok. Anyone have this happen before? Any idea what caused this? OK Go! Thanks, Bill

Looking for guidance/knowledge or just best guess! 2015 Chevy High Country 6.2L with 65,000 miles. When the truck goes from V4 to V8 it makes a single "chirp" noise. EVERY TIME it shifts from V4 to V8 I hear it, making me crazy. Dealer said "I hear it, but we don't know what it is. Maybe a relay snap." Any ideas? Thanks.

Very close! Actually mine started at 45mph and up.

2015 High Country 6.2. Had torque converter replaced about a year ago to correct tcc shudder. Started again a few days ago and took back to dealer. They performed bulletin 18-NA-355 (flush transmission w/ Mobil 1 ATF and said to drive for 200 miles for full effect. Just wondering if anyone has had success with this procedure to correct tcc shudder and hard shifting. Thanks!