GMC 2007 Envoy - Manual (Page 427)

A. Heavy, Unpainted Metal Engine Part or
Remote Negative (
−
) Terminal
B. Good Battery or Remote Positive (+) and
Remote Negative (
−
) Terminals
C. Dead Battery or Remote Positive (+) Terminal
Disconnect the jumper cables in reverse order that
they were installed. Do the following:
1. Disconnect the black negative (
−
) cable from
the vehicle that had the dead battery.
2. Disconnect the black negative (
−
) cable from
the vehicle with the good battery.
3. Disconnect the red positive (+) cable from the
vehicle with the good battery.
4. Disconnect the red positive (+) cable from the
other vehicle.
Jumper Cable Removal
427