NHTSA Service Bulletin 10226062: 2020-2022 Nissan Frontier
Official manufacturer communication context for 2020-2022 Nissan Frontier, 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.
MIL ON WITH GEAR RATIO DTCS STORED IN THE TCM SERVICE INFORMATION If one or more of the following DTCs is stored in the TCM as current or past, please check Service COMM or Dealer Business Systems (DBS) National Service History to confirm if campaign R22B1 or R22A9 has been applied. P0731 1GR INCORRECT RATIO P0732 2GR INCORRECT RATIO P0733 3GR INCORRECT RATIO P0734 4GR INCORRECT RATIO P0735 5GR INCORRECT RATIO P0729 6GR INCORRECT RATIO P076F 7GR INCORRECT RATIO P07D9 8GR INCORRECT RATIO P07F6 9GR INCORRECT RATIO P0893 MULTIPLE GEARS ENGAGED 1. Has campaign R22B1 or R22A9 and the drive cycle (after performing the campaign) on page 2 of this bulletin already been completed? No: a. Complete the related campaign. b. Perform the drive cycle on page 2, and then proceed to step 2. Yes: Proceed to step 2. 2. If one or more of the DTCs, listed above are still being stored as current or past, refer to the ESM for further diagnostic information not covered by this bulletin.
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 10226062?
MIL ON WITH GEAR RATIO DTCS STORED IN THE TCM SERVICE INFORMATION If one or more of the following DTCs is stored in the TCM as current or past, please check Service COMM or Dealer Business Systems (DBS) National Service History to confirm if campaign R22B1 or R22A9 has been applied. P0731 1GR INCORRECT RATIO P0732 2GR INCORRECT RATIO P0733 3GR INCORRECT RATIO P0734 4GR INCORRECT RATIO P0735 5GR INCORRECT RATIO.
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