Reporting Safety Defects to the United States Government
If you believe that your vehicle has a defect which could cause a crash or could
cause injury or death, you should immediately inform the National Highway Traffic
Safety Administration (NHTSA) in addition to notifying General Motors.
If NHTSA receives similar complaints, it may open an investig ...
Drive Range, First Gear Engine Braking (Gen 2)
Note: Some models of the 6T30/40/45/50 automatic transmission are equipped with
an electric auxiliary fluid pump for use in hybrid vehicles (BAS+). Hybrid vehicles
do not require internal combustion engine (ICE) operation at all times. After a
successful engine start, the hybrid powertrain con ...
Exhaust Manifold Cleaning and Inspection
Clean the exhaust manifold (1) in solvent.
Warning: Wear safety glasses in order to avoid eye damage.
Dry the exhaust manifold (1) with compressed air.
An exhaust manifold leak or damage may cause an exhaust leak and may effect
OBD II system perf ...