Hi, this is Bo, an auto expert on RepairPal's Car Genius team!
Great question—your Pontiac’s **Driver Information Center (DIC)** messages can be a bit of a puzzle. Unlike OBD-II codes, these messages often come from the car's Body Control Module (BCM) or other subsystems that aren’t always accessible with a basic OBD-II scanner. Messages like **Service Vehicle Soon** typically point to non-engine-related issues, such as electrical problems, lighting faults, or other system malfunctions.
GM’s intent wasn’t to have you playing Sherlock Holmes, but without specialized diagnostic tools (like a Tech 2 scanner or equivalent), you’re left with guesswork. The manufacturer does provide detailed troubleshooting procedures in service manuals for each message, but they’re usually aimed at technicians with access to these tools.
If you’re repeatedly getting vague warnings, it might be worth investing in a scan tool with extended GM diagnostic capability or heading to a shop with the right equipment. Saves you from sniffing around under the hood unnecessarily!
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