PLYMOUTH, Mich. – Isuzu has agreed with the National Highway Traffic Safety Administration (NHTSA) to recall certain 2019 Isuzu NPR/NPR HD and 2019 Chevrolet 4500 medium-duty trucks to fix an issue which might impact braking performance.
The recall, NHTSA 20V-193, covers 157 trucks built in Charlotte, Mich. on the night shift during the week of July 8-12, 2019.
The defect involves potentially incorrectly installed brake line clip(s) for the rear driver side brake line (which is routed inside the passenger side frame rail).This might allow the brake line to contact a grounding bolt. Repeated contact with the bolt could compromise the rear driver side brake line, leading to a loss of brake fluid and resulting in a drop in the hydraulic brake pressure and a reduction or loss of the rear driver side braking performance.
The remaining brakes (front, passenger side rear and parking brake) will continue to operate normally.
The remedy: dealers will inspect the brake line to determine if it was properly installed. If not, dealers will replace the brake-line assembly if parts are available or will re-position the brake line into the proper position as an interim measure if parts are not yet available.
Trucks which suffer the defect might leak brake fluid, thus illuminating the brake-malfunction light if the brake fluid decreases below minimum specifications.
Dealers were scheduled to be notified April 3rd and customers are scheduled to receive notification beginning May 15th.