Chevrolet 4500HD (2021) Recall: Brake Fire Risk from Electrical Short
Chevrolet is recalling 2021 4500HD trucks due to a brake pressure switch electrical short that could cause fire while driving or parked. Owners must park away from structures until repair.
Use caution until it’s fixed
An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
Contact the company
What happened, in plain English
Chevrolet is recalling 2021 4500HD trucks because a brake pressure switch can overheat and cause fire during normal use. This affects vehicles with the specific model and year mentioned in the recall. Read more at govinfonow.com/recall/80298-chevrolet-4500hd-2021-recall-brake-fire-risk-from-electrical-short.
Source Summary by GovInfoNow · govinfonow.com/recall/80298-chevrolet-4500hd-2021-recall-brake-fire-risk-from-electrical-short · Updated October 4, 2026 · Official notice: NHTSA #23V266000
Cite this page
“Chevrolet 4500HD (2021) Recall: Brake Fire Risk from Electrical Short.” GovInfoNow, updated October 4, 2026. https://govinfonow.com/recall/80298-chevrolet-4500hd-2021-recall-brake-fire-risk-from-electrical-short. Based on NHTSA recall #23V266000 (https://www.nhtsa.gov/recalls?nhtsaId=23V266000).
Why it’s dangerous
An electrical short in the brake pressure switch can overheat the circuit and cause a fire while driving or parked. This happens because brake fluid leaks into the switch, creating a short-circuit.
Who’s affected
Owners of 2021 Chevrolet 4500HD trucks are affected. Drivers using these trucks without the repair are at risk of fire during normal operation.
How to tell if you have this one
Check if your vehicle is a 2021 Chevrolet 4500HD. The recall covers specific model years and vehicle types listed in the official notice.
- Brand
Chevrolet- Category
Vehicle
What to do — step by step
Park Away from Structures
Move your vehicle to a safe location away from buildings or other structures until the repair is complete.
Contact Chevrolet Customer Service
Call 1-800-222-1020 to schedule a repair or get more information about the recall.
What NHTSA says to do
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the master cylinder pressure sensor and inspect the wire harness, replacing it, if necessary, free of charge. Owner notification letters were mailed July 11, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222375270.
How this recall unfolded
Recall timeline
Owners were mailed letters 3 months after NHTSA received the defect report.
- NHTSA received the defect report
- Owner letters mailed
Dates from the agency record only; steps without a date are left out.
Contact Chevrolet
We’ve drafted a message you can send Chevrolet to request your refund or repair — edit it as you like.
Subject: Recall 23V266000 — Chevrolet 4500HD (2021) Recall: Brake Fire Risk from Electrical Short Hello, I own a Chevrolet 4500HD (2021) Recall: Brake Fire Risk from Electrical Short that is covered by recall 23V266000 from Chevrolet. The official recall notice states: Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the master cylinder pressure sensor and inspect the wire harness, replacing it, if necessary, free of charge. Owner notification letters were mailed July 11, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222375270. I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this? Thank you.
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Where this comes from
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
- Official source: NHTSA Recall #23V266000 (April 13, 2023)
- Plain-language summary written by qwen3:4b on October 4, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
- GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.