NHTSA service bulletin

NHTSA Service Bulletin 10179449: 2018-2020 Bentley Continental Gt

Official manufacturer communication context for 2018-2020 Bentley Continental Gt, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10179449 summary graphic for 2018-2020 Bentley Continental Gt
10179449NHTSA document ID
Manufacturer communicationcommunication type
2affected product rows
2source 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

New Continental GT / GTC - Exhaust Flap - Diagnostic Trouble Code. Customer statement / workshop findings Warning lamp illuminated on Driver Instrument Panel (DIP) Drive system fault. Contact your Bentley dealer displayed on DIP One or more of the following Diagnostic Trouble Codes (DTCs) stored within Engine Control Modules (ECMs) 1 or 2: P04A000: Exhaust Pressure Control Valve B P04A000 / P047500: Exhaust Pressure Control Valve A P14AB00: Exhaust door control unit mechanical malfunction P049F00: Exhaust Pressure Control Valve B Technical background The root cause of Exhaust Flap Control Unit malfunction is electrical shorting of the commutator segments, this is caused by an accumulation of Sludge within the Control Unit. A DTC is stored when the respective Control Unit does not move through its full range of motion.

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
BentleyContinental Gt2018-2020Ask for service records and run the exact VIN before purchase.
BentleyContinental Gtc2019, 2020Ask 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 10179449?

New Continental GT / GTC - Exhaust Flap - Diagnostic Trouble Code. Customer statement / workshop findings Warning lamp illuminated on Driver Instrument Panel (DIP) Drive system fault. Contact your Bentley dealer displayed on DIP One or more of the following Diagnostic Trouble Codes (DTCs) stored within Engine Control Modules (ECMs) 1 or 2: P04A000: Exhaust Pressure Control Valve B P04A000 / P047500: Exhaust.

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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