PLYMOUTH, Mich. – Isuzu Motors Limited is recalling certain model-year 2022-2023 Class 5 trucks produced under the Isuzu, Hino and Chevrolet brands to rectify anti-lock brakes (ABS) and (optional) advanced driver-assistance systems (ADAS) faults.
The 242 (180 Isuzu, 43 Chevrolet and 19 Hino) trucks within the recall population were all modified vehicles with frames extended to either a 200 or 212-inch wheelbase.
According to the National Highway Traffic Safety Administration (NHTSA) Part 573 Safety Recall Report 23V-017, when the chassis modifications were performed, the ADAS camera and ABS module were not recalibrated to account for the different inputs from the vehicle resulting from the stretched frame. Therefore, when driving in a curve certain ADAS features and the ESC system working together with the ABS module may not function properly.”
The report further explains the potential safety risk under these circumstances:
• Automatic Emergency Braking System (AEBS) activation (as well as the
AEBS warning light) may be delayed when driving in a curve and therefore
the AEBS may then decelerate the vehicle more aggressively when activated.
• Adaptive Cruise Control may reduce following distance by about 8-10 m
when driving in a curve.
• ESC may activate in an understeer condition without illuminating brake
lights.
• ESC may delay activation in an oversteer condition, increasing potential for
an oversteer event to occur.
The rectification incorporates recalibration of the ABS ESC and, if ADAS equipped, the ADAS camera.
Dealers were scheduled to be notified about the recall last week; owners are scheduled to be notified by March 10th.
