Starting in mid April 2026, Google Merchant Center will begin highlighting data quality issues specifically for Vehicle ads within the account issues interface.
Advertisers will see detailed reports when vehicle data in feeds does not match with the corresponding landing page content.

Key points to monitor include the visibility of vehicle availability, accurate matching for condition, price, mileage, and vehicle identification details between your data and website. Discrepancies in these areas will result in disapprovals until corrected. Vehicle landing page URLs must also be properly set in the feed.
Advertisers are advised to regularly review and resolve any new warnings listed on the Merchant Center account issues page to keep vehicle listings eligible.
Read the official help page here: Vehicle ads data quality requirements.