NHTSA Service Bulletin 10209457: 2020 Kia Telluride
Official manufacturer communication context for 2020 Kia Telluride, 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.
TECHNICAL SERVICE BULLETIN: REAR HVAC CONTROL HEAD MEMORY UPGRADE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to perform a wire harness upgrade on some 2020MY Telluride (ON) vehicles, produced from January 8, 2019 through June 4, 2019, which may experience a condition where the rear HVAC control head does not retain its previous settings and/or may reset to A/C on after the vehicle is turned off for a prolonged period of time.
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 10209457?
TECHNICAL SERVICE BULLETIN: REAR HVAC CONTROL HEAD MEMORY UPGRADE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to perform a wire harness upgrade on some 2020MY Telluride (ON) vehicles, produced from January 8, 2019 through June 4, 2019, which may experience a condition.
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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