Service Bulletins
Service Bulletins give additional technical service information needed to knowledgeably service General Motors cars and trucks.
Each bulletin contains instructions to assist in the diagnosis and service of the vehicle.
See also:
Driver Efficiency Gauge
For eAssist vehicles, this gauge
assists in driving efficiently and will
vary based on driver input.
To maximize efficiency, keep the
gauge pointed in the solid green
zone in the center of ...
All-Wheel Drive
When to Check Lubricant
It is not necessary to regularly check 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 r ...
Removing the Flat Tire and Installing the Spare Tire
This vehicle may have aluminum wheels with exposed wheel nuts. Use the wheel
wrench to loosen all the wheel nuts. Do not remove them yet.
Or, this vehicle may have steel wheels with plastic covers. ...
