NHTSA Service Bulletin 10194134: 2018 Isuzu F-series
Official manufacturer communication context for 2018 Isuzu F-series, 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.
ISUZU COMMERCIAL TRUCK OF AMERICA, INC. IS PROVIDING THIS BULLETIN TO REMIND DEALERS TO STRICTLY FOLLOW THE PROCEDURES SET FORTH IN THE APPLICABLE SERVICE MANUAL WHEN CONDUCTING SLACK ADJUSTER AND OTHER BRAKE COMPONENT MAINTENANCE AND INSPECTIONS (TO BE PERFORMED EVERY 10,000 MILES OR 6 MONTHS, WHICHEVER COMES FIRST). THE SLACK ADJUSTERS (FITURE 1) AND CAMSHAFTS (FIGURE 2) MUST BE GREASED AND THE BRAKE STROKE (FIGURE 3) AND CAMSHAFT RADICAL PLAY (FIGURE 4) SHOULD BE CHECKED AT EACH/EVERY MAINTENANCE. DELAYING OR SKIPPING BRAKE MAINTENANCE AND INSPECTIONS CAN LEAD TO ACCELREATED BRAKE COMPONENT WEAR AND DAMAGE, AND ADVERSELY AFFECT THE PERFORMANCE OF THE VEHICLE'S BRAKING SYSTEM. IF A DEALER RECEIVES A CUSTOMER COMPLAINT RELATED TO POOR OR ABNORMAL BRAKING PERFORMANCE IN AN AFFECTED VEHICLE, THE ENTIRE BRAKE SYSTEM MUST BE INSPECTED FOR PROPER FUNCTIONALITY. IT IS IMPORTANT FOR THE TECHNICIAN TO UNDERSTAND THAT THE SLACK ADJUSTERS ARE NOT DESIGNED TO COMPENSATE FOR DAMAGED OR EXCESSIVELY WORN BRAKE COMPONENTS. IN ORDER TO AID TECHNICIANS IN DIAGNOSING EXCESSIVE BREAK STROKE-RELATED BRAKE PROBLEMS, WE ARE PROVIDING THE SERVICE PROCEDURES BELOW.
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 10194134?
ISUZU COMMERCIAL TRUCK OF AMERICA, INC. IS PROVIDING THIS BULLETIN TO REMIND DEALERS TO STRICTLY FOLLOW THE PROCEDURES SET FORTH IN THE APPLICABLE SERVICE MANUAL WHEN CONDUCTING SLACK ADJUSTER AND OTHER BRAKE COMPONENT MAINTENANCE AND INSPECTIONS (TO BE PERFORMED EVERY 10,000 MILES OR 6 MONTHS, WHICHEVER COMES FIRST). THE SLACK ADJUSTERS (FITURE 1) AND CAMSHAFTS (FIGURE 2) MUST BE GREASED AND THE BRAKE STROKE.
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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