Technical Service Bulletin CB23-J-003 — 2023 ISUZU F-SERIES
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | CB23-J-003 |
| Manufacturer | |
| Vehicle | 2023 ISUZU F-SERIES |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
CUSTOMER SATISFACTION CAMPAIGN: In some 2022-2023 MY Isuzu F-Series trucks equipped with RPO 5U5 Tire Size 255/70R22.5, a calibration error caused the affected vehicles to be built with an incorrect tire size value. As a result, the speedometer will show a vehicle speed higher than the actual vehicle speed while driving and the odometer will accumulate miles faster (approximately 14% faster) than the âactualâ or âTrueâ vehicle miles. Additionally, mileage data collected and stored in the Mimamori Unit (MMU) will be incorrect.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2023 ISUZU F-SERIES
IB24-R-001a
FORWARD COLLISION AVOIDANCE: WARNINGS
IB09-N-001H
ELECTRICAL SYSTEM
SB24-J-001
ENGINE
CB23-J-004
ENGINE AND ENGINE COOLING
CB23-N-003
ELECTRICAL SYSTEM
IB18-N-003C
ENGINE AND ENGINE COOLING
IB22-X-002A
EQUIPMENT