2023 GMC Sierra 1500 — delayed engagement into Drive when cold

It did delayed engagement into drive when cold twice this week, both times after sitting. No change in mileage feel. Next check is the cheap one I can do in a driveway.

Intermittent stuff lies if you only catch it once. Get a real battery/charging test on the 2023 GMC Sierra 1500, not just resting voltage, before blaming a module. That's the branch I'd chase this week. On “delayed engagement into drive when cold,” that was the fork that mattered for me. That's the whole play. This is me being the wet blanket on purpose.

I wouldn't throw parts yet. Write temp, speed, and in-gear vs coast when the 2023 GMC Sierra 1500 does it — then decide on parts. That's the branch I'd chase this week. I'd want that in writing, not as a promise. I keep a notes app thread for this now.

I'd want a measurement, not a hunch. If a shop can't duplicate it on the 2023 GMC Sierra 1500, bring a video plus freeze-frame data, not just a story. You'll know quickly if you're on the wrong tree. Run the total, not the monthly, before you commit. I'd rather be boring and correct. Not interested in a five-hour wait for a shrug.

This is usually cheaper to test than to guess. Get a real battery/charging test on the 2023 GMC Sierra 1500, not just resting voltage, before blaming a module. Save the big job until that test fails. This is from a 2023 GMC Sierra 1500 in California. I'd want that in writing, not as a promise. If it repeats twice more I'll book time.

If it were in my driveway, write temp, speed, and in-gear vs coast when the 2023 GMC Sierra 1500 does it — then decide on parts. Save the big job until that test fails. If it doesn't change the out-the-door or the repair estimate, it's noise. Happens in gear, not in park, for what that's worth.