The truck has under 13,000 miles as of October 2026. The brake lines are all completely rusted and some rusted all the way through causing brake leaking and brake loss. This is a complete failure on Gm parts by using sub par parts. I was alerted by the stabiltrak and brake light on dash to the issue. Took to my Gm dealer Sapaugh GM, they made video stating the entire brake line system is completely rusted on a 4 and half year old truck with low miles. This truck is routinely neutralized and power washed with hot power washer. my extended warranty will not cover. I have GM vehicle with 150,000 mile and are 2012 model years that have not had brake line issues. i would like for GM to pay for cost of labor or at least pay for half th e cost of repairs at the GM dealership
The worst 2021 Chevrolet 5500HD problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Brakes1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Brakes1
Recalls 2
Service brakes, hydraulic
- What is wrong
- General Motors. LLC (GM) is recalling certain 2019-2023 Chevrolet 4500HD, 5500HD, and 6500HD Medium-Duty trucks. The brake pressure sensor assembly may leak brake fluid into the brake pressure switch and cause an electrical short-circuit.
- Risk
- An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
- Remedy
- 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.
Recall number 23V266000 · Recall details
Equipment
- What is wrong
- General Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet 4500HD/5500HD/6500HD vehicles. The hex flange lock nuts used in the suspension and steering joints, were improperly heat treated and may break.
- Risk
- Broken hex flange lock nuts may cause a loss of tension, leading to steering instability, and increasing the risk of a crash.
- Remedy
- Dealers will replace the hex flange lock nuts as necessary, free of charge. Interim owner notification letters informing owners of the safety risk were mailed December 27, 2022. Owner notification letters were mailed February 10, 2023. Owners may contact Chevrolet customer service at 1‑800‑222‑1020. GM's number for this recall is N222391080.
Recall number 22V874000 · Recall details
Technical service bulletins for the 2021 Chevrolet 5500HD 314
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Unknown or other
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- Unknown or other
- Unknown or other
- PI to help diagnose A/C concern
- Unknown or other
- Pi created to provide GM dealers with information on gathering information for projection issue
- Unknown or other
- Unknown or other
- Unknown or other
What 2021 Chevrolet 5500HD owners say
Most recent owner complaints, unedited.
Compare the 2021 Chevrolet 5500HD
Other model years
20192021
Questions about the 2021 Chevrolet 5500HD
Is the 2021 Chevrolet 5500HD reliable?
Owners have filed 1 complaint about the 2021 Chevrolet 5500HD, fewer than a typical 5500HD model year.
What is the most common problem with the 2021 Chevrolet 5500HD?
Brakes, with 1 complaint.
How many recalls does the 2021 Chevrolet 5500HD have?
2 recalls, covering service brakes, hydraulic and equipment.
Was there a recall on the 2021 Chevrolet 5500HD brakes?
Yes, 1 recall: 23V266000. Check your VIN to see if your car still needs the free repair.
VIN decoder
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