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Manufacturer communication · Service bulletin

Chevrolet bulletin PIT6078

What it saysThis Preliminary information communicates that a vehicle may come to the dealer with front, rear or front and rear windows inoperative. NHTSA’s full summary ↓

Chevrolet filed this with NHTSA as a service bulletin dated Oct 31, 2023, received Dec 4, 2023, about the visibility/wiper. It names 1 model year (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.

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What the bulletin says

Source: NHTSA's summary of the manufacturer's communication

This Preliminary information communicates that a vehicle may come to the dealer with front, rear  or front and rear windows inoperative. The technician is directed to either inspect the driver's window switch for the proper sticker or inspect the date code on the rear window switches depending on the condition. Depending on what is found the tech is directed to replace the affected window switch or to follow published diagnostics to determine the cause of the fault.

Kind Service bulletin Manufacturer date Oct 31, 2023 Received by NHTSA Dec 4, 2023 Components Visibility/Wiper, Electrical System

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
PIT6078Service bulletinOct 31, 202310246031not 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 them

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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A weekly email, sent only in a week when Chevrolet files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.

What owners reported

Source: NHTSA complaint database

Owners of the 1 model year this bulletin names have filed 132 complaints with NHTSA since 2015. 40 of them name Electrical System, Visibility/Wiper — 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.

On February 4, 2026, my wife drove to the bank, a trip of about 10 to 15 minutes, and turned off the car at the ATM. When she tried to leave, the vehicle wouldn't start. After a while, she opened and closed the door and locked and unlocked the car twice with the remote control, and the vehicle started and she was able to drive, but all…

2024 Chevrolet Blazer · Electrical System · filed with NHTSA Feb 5, 2026 · ODI 11715867

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 visibility/wiper

Source: same model, same component group

11 other manufacturer communications filed against the Chevrolet Blazer under the same component group (visibility/wiper), newest first. The eight newest are listed; the rest are on the Chevrolet list.

NumberKindDatedNHTSA’s summary
24-NA-164Service bulletinMar 20, 2025This bulletin provides information on Wiper Blade Maintenance Tips.
N252492430Service campaignMar 18, 2025Certain vehicles may have a condition in which the heated windshield wiper park is inoperative. Dealers are to reprogram the Lighting Contr…
24-NA-259Service bulletinNov 27, 2024This service bulletin provides a service procedure to correct customer concerns of Air Conditioning (A/C) Not Working and/or Blows Warm Air.
PIT6226Service bulletinSep 13, 2024This Preliminary information communicates that a vehicle may be encountered with windshield wipers that work on high only. The tech is direc…
PI0754GService bulletinJul 31, 2024This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.
16-NA-342Service bulletinJul 23, 2024This service bulletin provides a procedure to check the rearview mirror coax connector for looseness by disconnecting and reconnecting the e…
PIT6099AService bulletinDec 18, 2023This PI states that a vehicle may be encountered with a concern that the HVAC controls are inoperative. The dealer technician is instructed…
PIT6078BService bulletinDec 13, 2023This Preliminary information communicates that a vehicle may come to the dealer with front, rear  or front and rear windows inoperative. The…

Quote the number at the service desk. It is what the dealer’s system is keyed on.

Every manufacturer communication NHTSA holds for Chevrolet, by the number printed on the letter.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Chevrolet PIT6078 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 PIT6078 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 PIT6078 cover?

The manufacturer filed it against 1 model year: 2024 Chevrolet Blazer. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.