NHTSA Service Bulletin 11024651: 2025 Buick Acadia
Official manufacturer communication context for 2025 Buick Acadia, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.
Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.
Improves how center display adjusts to lighting changes. Improved warnings when a key is missing. Better tuning for interior lighting in Stealth mode. Improvements to automatic low beam headlamp logic. Smoother dimming and transitions from day to night. Improves Check Engine Light accuracy. Improves behavior of aero shutter system in freezing temperatures. Fixes to help prevent erroneous collision calls. Fixes to address issues with OnStar stolen vehicle responses. Improvements to performance of software updates and connectivity. Fixes to help prevent battery drain. Fixes to responsiveness issues with Wi-Fi, Navigation, Super Cruise, and OnStar. Improvements to software updates. Improvements to OnStar emergency calls. Fixes to address cellular connectivity issues. Fixes calculation of vehicle brake pad life to address inaccurate status shown on center display. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation. If you are not using your vehicle's built-in 4G LTE connection, then applicable data rates apply.
What this bulletin may mean before buying
Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.
Affected products listed in this communication
Buyer checklist
- Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
- Check recall campaign pages for safety actions that may require dealer repair.
- Compare this bulletin with common problem pages for the same model and component area.
- Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
- Use the used-car buying checklist and get an independent inspection.
Frequently asked questions
What is NHTSA service bulletin 11024651?
Improves how center display adjusts to lighting changes. Improved warnings when a key is missing. Better tuning for interior lighting in Stealth mode. Improvements to automatic low beam headlamp logic. Smoother dimming and transitions from day to night. Improves Check Engine Light accuracy. Improves behavior of aero shutter system in freezing temperatures. Fixes to help prevent erroneous collision calls. Fixes to.
Is a service bulletin the same as a recall?
No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.
How should a used-car buyer use this bulletin?
Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.
Check the exact VIN before you buy
Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.
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