NHTSA service bulletin

NHTSA Service Bulletin 10129870: 2005-2012 Buick Canyon

Official manufacturer communication context for 2005-2012 Buick Canyon, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10129870 summary graphic for 2005-2012 Buick Canyon
10129870NHTSA document ID
Manufacturer communicationcommunication type
6affected product rows
90/100quality score

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have an engine that misfires, possibly coming to a stop or on acceleration. This may be caused by contaminated fuel. Technician will need to inspect the inside of the fuel rail and fuel tank for signs of fuel contamination. If fuel contamination is present, refer to the "Fuel System Cleaning" procedure in Service Information and clean the inside of the fuel tank, fuel lines and fuel rail. Also the fuel injectors will need to be cleaned by following "Fuel Injector Cleaning Procedure" in Service Information. Technician may report a repeat misfire concerns on these cylinders caused by sticking valves after cleaning the fuel system. If the valves are sticking do not replace the cylinder head or valves until first attempting to clean them. This should be done by using the cleaning procedures listed in the latest version of PIP5029.

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

MakeModelModel yearsBuyer note
BuickRainier2005-2007Ask for service records and run the exact VIN before purchase.
ChevroletColorado2006-2012Ask for service records and run the exact VIN before purchase.
ChevroletTrailblazer2005-2009Ask for service records and run the exact VIN before purchase.
GMCCanyon2006-2012Ask for service records and run the exact VIN before purchase.
GMCEnvoy2005-2009Ask for service records and run the exact VIN before purchase.
HummerH32006-2010Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 10129870?

This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have an engine that misfires, possibly coming to a stop or on acceleration. This may be caused by contaminated fuel. Technician will need to inspect the inside of the fuel rail and fuel tank for signs of fuel contamination. If fuel contamination is present, refer to the "Fuel System.

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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