Is this with cruise set? Is your foot on the floor? Does the transmission downshift?
Is this with cruise set? Is your foot on the floor? Does the transmission downshift?
If you put the jack stands in the proper place and you’re on fairly level hard ground/concrete, you’re safe.
I’d ask if the GMC has any kind of warranty on the transmission work. If so, I’d go for that one.
Replace discs
Was the alternator checked?
Just a guess, but it sounds like a bad pedal position sensor.
Gas? Diesel?
Can you fold down the back seats and crawl through to the trunk? Maybe you can lubricate the latch from the inside.
Double sided tape
I’m a fan of the Sylvania headlight restoration kit. It’s one of the few that has a clear coat with it. Made my lenses look brand new, and they stayed that way until I sold the car.
If the car is running, the battery shouldn’t be dying, even if it’s just idling. Have the battery and alternator checked. If you’re using accessory mode with the engine off, yes, it will eventually drain the battery. I work out of my truck some days and it idles for 12+ hours running everything you are, with no issues (engine running).
Use what is recommended for the car.