NHTSA service bulletin

NHTSA Service Bulletin 10197186: 2021 Nissan Sentra

Official manufacturer communication context for 2021 Nissan Sentra, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10197186 summary graphic for 2021 Nissan Sentra
10197186NHTSA document ID
Service campaigncommunication type
1affected product rows
1source rows grouped

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

Side Radar Sensor Voluntary Service Campaign Dealer Announcement: Nissan is conducting a Voluntary Service Campaign to replace both rear side radar sensors on 11,804 specific model year 2021 Sentra vehicles identified in Service Comm. Due to a supplier production error, incorrect boot software of the blind spot warning (BSW) sensor may cause a sensor malfunction and a warning message to display on the combination meter indicating the BSW feature is not functional. Affected vehicles are not subject to stop sale and are either currently in dealer inventory or assigned and in transit to the dealer. What Dealers Should Do: 1.Verify if vehicles are affected by this Voluntary Service Campaign using Service Comm or DBS National Service History Open Campaigns I.D. PM981. New vehicles in dealer inventory can also be identified using DBS (Sales-> Vehicle Inventory, and filter by Open Campaign). Refer to NPSB15-460 for additional information Please continue to check newly arriving inventory for campaign applicability. 2.Dealers are requested to remedy any affected vehicles in dealer new or pre-owned inventory to ensure customer satisfaction. 3.Dealers should use NTB21-042 to correct any vehicles subject to this campaign. 4.Once repaired, dealers should submit the claim, using the claims coding provided, and release the vehicle.

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
NissanSentra2021Ask 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 10197186?

Side Radar Sensor Voluntary Service Campaign Dealer Announcement: Nissan is conducting a Voluntary Service Campaign to replace both rear side radar sensors on 11,804 specific model year 2021 Sentra vehicles identified in Service Comm. Due to a supplier production error, incorrect boot software of the blind spot warning (BSW) sensor may cause a sensor malfunction and a warning message to display on the combination.

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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