NHTSA service bulletin

NHTSA Service Bulletin 620152: 1996-1998 Volvo 850

Official manufacturer communication context for 1996-1998 Volvo 850, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 620152 summary graphic for 1996-1998 Volvo 850
620152NHTSA document ID
Emissions communicationcommunication type
7affected 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

ENHANCED INSPECTION / MAINTENANCE (I/M) PROGRAMS. THIS BULLETIN ADDRESSES CHARACTERISTICS OF THE 1996 VOLVO MODEL 850 AND 1996 - 1997 VOLVO MODEL 960. FOR THESE VEHICLES, INCOMPLETE READINESS CODES WILL NOT INHIBIT THE OBD II SYSTEM FROM MONITORING, DETECTING, AND SUBSEQUENTLY STORING A CORRESPONDING DIAGNOSTIC TROUBLE CODE IN SYSTEM MEMORY. IT CAN BE EXPECTED THAT ONE OF THESE VEHICLES EXHIBITING INCOMPLETE READINESS CODES, BUT PRESENTING NO DIAGNOSTIC TROUBLE CODES (DTCS), WILL MEET I/M EMISSION STANDARDS. *TT

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
Volvo8501996, 1998Ask for service records and run the exact VIN before purchase.
Volvo9601996-1998Ask for service records and run the exact VIN before purchase.
VolvoC701998Ask for service records and run the exact VIN before purchase.
VolvoS701998Ask for service records and run the exact VIN before purchase.
VolvoS901998Ask for service records and run the exact VIN before purchase.
VolvoV701998Ask for service records and run the exact VIN before purchase.
VolvoV901998Ask 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 620152?

ENHANCED INSPECTION / MAINTENANCE (I/M) PROGRAMS. THIS BULLETIN ADDRESSES CHARACTERISTICS OF THE 1996 VOLVO MODEL 850 AND 1996 - 1997 VOLVO MODEL 960. FOR THESE VEHICLES, INCOMPLETE READINESS CODES WILL NOT INHIBIT THE OBD II SYSTEM FROM MONITORING, DETECTING, AND SUBSEQUENTLY STORING A CORRESPONDING DIAGNOSTIC TROUBLE CODE IN SYSTEM MEMORY. IT CAN BE EXPECTED THAT ONE OF THESE VEHICLES EXHIBITING INCOMPLETE.

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.

Get Full Report