GM bulletin PIT4506G
What it saysThis Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Feb 2, 2024, received Mar 18, 2024, about the tires. It names 40 model years across Chevrolet and GMC (2016–2024). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · GMC.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Tire pressures being set to the "Tire and Loading Label" will ensure the safe handling and ride characteristics of the truck and should not be lowered.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PIT4506G | Service bulletin | Feb 2, 2024 | 10251681 | not found |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themChevrolet 22 model years
GMC 18 model years
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 40 model years this bulletin names have filed 2,337 complaints with NHTSA since 2015. 20 of them name Tires — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
Concerning Goodyear Wrangler Trailrunner AT P275/65/20 tires that came stock with my 2022 GMC Sierra 2500HD, which currently has 42,000 miles on it. While driving a round trip of no more than 30 miles the evening of 11/29/24, I noticed a slight repetative jaring motion, which I initially attributed to a potential transmission issue.
2022 GMC Sierra 2500HD · Tires · filed with NHTSA Dec 7, 2024 · ODI 11629379
The right rear tire (Goodyear Wrangler 275/65R20) separated and blew out on the highway, the truck was very difficult to control however it was safely stopped and there were no injuries. There was no observed warning prior to the blow out. The tire separation caused damage to the right rear quarter panel.
2021 GMC Sierra 3500HD · Tires · filed with NHTSA May 24, 2023 · ODI 11523697
The contact owns a 2020 GMC Sierra 3500 equipped with Goodyear Tires, Tire Line: Wrangler Trail Runner, Tire Size: LT275/65/R20), DOT Number: (NA). The contact stated that while driving approximately 40-45 MPH, the vehicle exhibited the death wobble, causing the vehicle to become difficult to steer.
2020 GMC Sierra 3500HD · Tires · filed with NHTSA May 17, 2023 · ODI 11522434
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the tires
Source: same model, same component group2 other manufacturer communications filed against these GM models under the same component group (tires), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N232429760 | Service bulletin | Jan 18, 2024 | Customer Reimbursement. On certain vehicles, the customer ordered the Snow Plow Special Edition Sales Package (RPO ANQ), and was mistakenly… |
| PIT4261J | Service bulletin | Jun 9, 2023 | This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Chevrolet and GMC, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM PIT4506G a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the PIT4506G repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every GM warranty extension on file lists the ones GM has filed.
Which vehicles does PIT4506G cover?
The manufacturer filed it against 40 model years across 2 brands (Chevrolet and GMC): 2024 Chevrolet Silverado 2500HD, 2023 Chevrolet Silverado 2500HD, 2022 Chevrolet Silverado 2500HD, 2021 Chevrolet Silverado 2500HD, 2020 Chevrolet Silverado 2500HD, 2019 Chevrolet Silverado 2500HD and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.