2026 GM Navigation SD Card Part 85856394, Compatible with Select Chevrolet GMC Cadillac Buick, USA CAN MEX Map Data, Support HUD Speed Limit

2026 MAP VERSION - Update your compatible factory navigation system with refreshed North America map data for the United States, Canada, and Mexico. Built for select GM Info 3 factory navigation vehicles using part number 85856394. CHECK FIT BEFORE ORDERING - Verify your vehicle model and year are listed, then confirm that your vehicle has a factory Nav or Navigation icon and an SD card slot. This card is intended for compatible North American vehicles only. MAP UPDATE HIGHLIGHTS - Typical map update highlights include 64, 238 miles of new roads, 716, 867 restaurants, 340 new speed limits, 160, 063 ATMs, and 149, 494 fuel stations.

Exact data may vary by product and navigation system. INSTALL WITH SCREEN PROMPTS - Turn the vehicle off for at least 10 minutes, swap the old SD card, switch the ignition on, and follow the Confirm or Allow prompts. The navigation map operates from the SD card and does not download to the vehicle system. ONE VEHICLE ONLY - Once initialized, this NAV SD card is locked to a specific VIN and cannot be used on another vehicle. Keep the side lock switch in the unlocked UP position before inserting the card