differential GMC ENVOY 2003 Owner's Manual

When the differential is cold, add enough lubricant
to raise the level to 1/2 inch (12 mm) below the ®ller
plug hole.
When the differential is at operating temperature
(warm), add enough lubricant to raise the level to the
bottom of the ®ller plug hole.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. SeePart D: Recommended
Fluids and Lubricants on page 6-18.
Bulb Replacement
For the type of bulbs, seeReplacement Bulbs on
page 5-52.
For any bulb changing procedure not listed in this
section, contact your dealer.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas inside
and can burst if you drop or scratch the bulb.
You or others could be injured. Be sure to read
and follow the instructions on the bulb
package.
Headlamps
1. Open the hood.
2. Lift the inner quick release clips.
3. Pull the headlamp assembly away from the vehicle.
4. Remove the cover from the headlamp bulb.
5. Disconnect the wiring harness.
6. Remove the headlamp bulb by turning the socket
counterclockwise.
7. To install the replacement bulb, reverse Steps 1
through 6.
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ApplicationL6 Engine V8 Engine
English Metric English Metric
Transmission
(Drain and Re®ll)5.0 quarts 4.7 L 5.0 quarts 4.7 L
Differential Fluid
Rear 4.0 pints 1.9 L 4.0 pints 1.9 L
Front 2.6 pints 0.8 L 2.6 pints 0.8 L
Fuel Tank
Envoy 18.7 gallons 70.8 L Ð Ð
Envoy with RPO NNK 22.0 gallons 83.3 L Ð Ð
Envoy XL 25.3 gallons 95.8 L 25.3 gallons 95.8 L
All capacities are approximate. When adding, be sure to ®ll to the appropriate level, as recommended in this
manual. Recheck the ¯uid level after ®lling.
5-103