See also:

Powertrain
The XLR's Northstar V-8 VVT is a 90-degree, DOHC, four-valves-per-cylinder engine featuring an aluminum block and cylinder heads, and a valvetrain configuration with roller finger followers. The e ...

Tips and Troubleshooting Chart
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Map Database Information
Use the Map Database Information/ Remove Map Data screen button to view the coverage areas of the map database or to replace the map database. 1. Press the Map Database Information/Remove Map Dat ...