See also:

CD Messages
Check Disc: Radios with a single CD player display Check Disc and/or eject the CD if an error occurs. Optical Error: The disc was inserted upside down. Disk Read Error: A disc was inserted with an i ...

Maintenance When Trailer Towing
The vehicle needs service more often when pulling a trailer. See this manual's Maintenance Schedule or Index for more information. Things that are especially important in trailer operation are ...

Engine Oil
For diesel engine vehicles, see “Engine Oil” in the Duramax Diesel Supplement. To ensure proper engine performance and long life, careful attention must be paid to engine oil. Following these si ...