NHTSA Service Bulletin 10193437: 2016-2020 Chevrolet Express
Official manufacturer communication context for 2016-2020 Chevrolet Express, 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.
This Preliminary information communicates some customers may comment that the vehicle exhibits a lack of power when driving up grades or after the vehicle has been idling for long periods of time in high ambient temperatures (90 degrees or above). This condition is more noticeable when the vehicle is outfitted with heavy work equipment on the back such as work boxes or ambulance bodies. When the ambient temperature drops below 90 degrees you may notice that the condition is less noticeable or eliminated altogether. This condition is caused by the high ambient temperatures 90 degrees effecting the intake air flow to the engine
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 10193437?
This Preliminary information communicates some customers may comment that the vehicle exhibits a lack of power when driving up grades or after the vehicle has been idling for long periods of time in high ambient temperatures (90 degrees or above). This condition is more noticeable when the vehicle is outfitted with heavy work equipment on the back such as work boxes or ambulance bodies. When the ambient temperature.
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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