New for 2010
GM has dropped the long-running 6.0-liter V-8 engine from the Sierra lineup, leaving the powerful 6.2-liter V-8 for heavy towing needs. The rest of the Sierra's eight-cylinder lineup benefits from increased availability of its new six-speed transmission for regular and extended cab models equipped with the 5.3-liter V-8. Also, the 4.8-liter and 5.3-liter V-8 engines have been enhanced, with variable valve timing for improved emissions and better fuel economy.
Those with portable MP3 players can connect and play their music collections with the truck's audio system through a USB connection. Standard side curtain and side-impact airbags are welcome safety additions.
See also:
Audio Output
Audio from the DVD player or auxiliary inputs can be heard through the following possible sources:
• Wireless headphones
• Vehicle speakers
• Vehicle-wired headphone jacks on the RSA system, ...
Dinghy Towing
Two-Wheel-Drive Vehicles
Notice: If the vehicle is towed with all four wheels on the ground, the drivetrain components could be damaged.
The repairs would not be covered by the vehicle warranty. D ...
Express-down Windows
Vehicles with the express-down feature allow the driver and front passenger windows to be lowered without holding the switch. Push the switch down to the second detent, then release, to activate the e ...