Chevrolet / Isuzu recall: Electrical system
What is wrong
Isuzu Technical Center of America, Inc. (Isuzu) is recalling certain 2020 NPR-HD (Crew Cab) and Chevrolet 4500 (Crew Cab) vehicles equipped with 6.6L gasoline engines. The chassis harness and the coolant return hose from the radiator to the reservoir (surge hose) may chafe. Continued chafing could cause wear in the harness and/or hose, ultimately causing a hole in the hose with the potential for engine coolant to leak and/or causing damage to the harness with the potential for a short circuit.
What could happen
Leaking engine coolant and/or a damaged wire harness may result in a no-start condition, an engine stall, or an electrical short. These scenarios increase the risk of a crash or fire.
The fix
Isuzu and Chevrolet will notify their respective vehicle owners and dealers of this recall, and specifically of the need to adjust the positive cable in subject vehicles, and owners will be informed that the recall repairs will be done free of charge. The recall began December 11, 2020. For additional information, Isuzu owners may contact Isuzu Customer Relations at 1-866-441-9638 and Chevrolet owners may contact the GM Medium Duty Truck assistance line at 1-800-862-4389. Isuzu's number for this recall is V2006.
Vehicles covered
- Chevrolet Low Cab Forward 4500 2020
- Isuzu Npr Hd 2020
Facts
- NHTSA recall number
- 20V721000
- Type
- Vehicle
- Filed by
- Isuzu Technical Center Of America, Inc.
- Reported to NHTSA
- Nov 20, 2020
- Owners notified
- Dec 11, 2020
- Vehicles or items affected
- 46
- Started by
- The manufacturer
- Built
- –
- Part
- Electrical system › Wiring; Engine and engine cooling › Cooling system › Hoses/lines/piping/fittings
- Maker's own recall number
- V2006
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Other recalls for the same vehicles
- Isuzu recall: Structure Aug 6, 2026
- Isuzu recall: Electrical system Apr 1, 2026
- Chevrolet / International Motors / Isuzu recall: Suspension Mar 19, 2021
- Chevrolet / Isuzu recall: Electrical system Nov 20, 2020
- Chevrolet / Isuzu recall: Seat belts Jan 17, 2020
- Chevrolet / Isuzu recall: Wheels Nov 20, 2019
To check one car, enter its 17-character VIN on the official NHTSA page: a recall may cover only some vehicles of a model year.
Recall data: National Highway Traffic Safety Administration (NHTSA). Nebula is not affiliated with or endorsed by NHTSA.