NHTSA Service Bulletin 10215718: 2021 Ford F-150
Official manufacturer communication context for 2021 Ford F-150, 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 article supersedes TSB 21-2253 to update the vehicle lines affected. Some 2021 F-150 (non-Raptor/non-Tremor) vehicles with rear gross axle weight rating (GAWR) of 1542 kg (3,400 lb) or 1724 kg (3,800 lb) shown on the vehicle certification (VC) label may experience a pop/clunk/snap noise from the rear of vehicle when driving up/down an incline at an angle (frame twist). This approach angle would be similar to entering or leaving a driveway. This may be due to movement between the rear spring and the rear spring mounting plate on the rear axle. To correct the condition, follow the Service Procedure to apply lubrication between the rear spring and the rear spring mounting plate mating surfaces on the rear axle.
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 10215718?
This article supersedes TSB 21-2253 to update the vehicle lines affected. Some 2021 F-150 (non-Raptor/non-Tremor) vehicles with rear gross axle weight rating (GAWR) of 1542 kg (3,400 lb) or 1724 kg (3,800 lb) shown on the vehicle certification (VC) label may experience a pop/clunk/snap noise from the rear of vehicle when driving up/down an incline at an angle (frame twist). This approach angle would be similar 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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