GMC 2008 Envoy - Manual (Page 340)

Notice: If the jumper cables are connected or
removed in the wrong order, electrical shorting may
occur and damage the vehicle. The repairs would
not be covered by your warranty. Always connect
and remove the jumper cables in the correct order,
making sure that the cables do not touch each other
or other metal.
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.
Rear Axle
When to Check Lubricant
It is not necessary to regularly check rear axle fluid
unless you suspect there is a leak or you hear an
unusual noise. A fluid loss could indicate a problem.
Have it inspected and repaired.
Jumper Cable Removal
5-46