Chevrolet bulletin 21-NA-192
What it saysThis service bulletin provides repair information to correct a customer concern of the Convertible Top May Not Lower Intermittently, Technician may find DTC B19E4 SYM64 Stored in History. NHTSA’s full summary ↓
Chevrolet filed this with NHTSA as a service bulletin dated Oct 2, 2024, received Oct 28, 2022, about the structure — 3 documents under this number. It names 6 model years (2020–2025). 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.
Get the next Chevrolet Corvette bulletin by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis service bulletin provides repair information to correct a customer concern of the Convertible Top May Not Lower Intermittently, Technician may find DTC B19E4 SYM64 Stored in History.
Trouble codes it names: B19E4
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 21-NA-192 | Service bulletin | Oct 2, 2024 | 11010416 | PDF, 414 KB |
| 21-NA-192 | Service bulletin | Dec 22, 2023 | 10248707 | not found |
| 21-NA-192 | Service bulletin | Oct 4, 2022 | 10224823 | PDF, 141 KB |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 6086008 | Adjust the Folding Top Right Front Latch Striker | 1.3 hrs |
Read by machine from the document NHTSA serves (7 pages), read Sep 30, 2026. A part number is shown only where it matches Chevrolet’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the body for the 2025 Corvette →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Email me new Chevrolet bulletins for the Corvette
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 databaseOwners of the 6 model years this bulletin names have filed 124 complaints with NHTSA since 2015. 34 of them name Electrical System, Structure — 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.
I cannot believe the Corvette does not show that the alternator does not show that the car is not charging. I have a thirty year old corvette that will show you when the alternator does not show the car has an under performing alternator. If you do not have it showing on the display it will not show you that the alternator is defective.
2021 Chevrolet Corvette · Electrical System · filed with NHTSA May 3, 2025
The contact owns a 2024 Chevrolet Corvette. The contact stated that upon parking and turning off the vehicle, the contact noticed that the radio, the infotainment screen, and the instrument cluster had failed to turn off. The contact stated that upon attempting to restart the vehicle, the vehicle failed to restart.
2024 Chevrolet Corvette · Electrical System · filed with NHTSA Dec 30, 2025
The contact owns a 2022 Chevrolet Corvette. The contact stated that while driving 30 MPH, the contact heard a tinkling sound coming from the tonneau parcel cover. The contact stated that the cable used to secure the parade cover had detached from the cover. The message that the top was not secured was displayed.
2022 Chevrolet Corvette · Structure · filed with NHTSA Aug 19, 2025
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 structure
Source: same model, same component group17 other manufacturer communications filed against the Chevrolet Corvette under the same component group (structure), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 25-NA-089 | Service bulletin | Apr 8, 2025 | This service bulletin provides Information on Front Compartment Hood May Not Fully Unlatch When Release Button is Pressed and Gets Stuck in… |
| N242479150 | Service bulletin | Mar 26, 2025 | Certain vehicles listed above may have a condition in which water leaks into the cabin from the door. Dealers will replace the water deflect… |
| 05-08-51-001L | Service bulletin | Feb 20, 2025 | This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film. |
| 24-NA-026 | Service bulletin | Feb 7, 2025 | This service bulletin provides a procedure to correct a customer concern of Convertible Top Leak Around Side Glass in High Pressure Car Wash… |
| 10-08-110-001L | Service bulletin | Jan 31, 2025 | This service bulletin provides information on proper use of floor mats. |
| 22-NA-244 | Warranty extension | Jan 30, 2025 | This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warr… |
| PIC6542A | Service bulletin | Oct 25, 2024 | This Preliminary Information communicates diagnostic information to the technician when servicing a vehicle for a "Stealth Mode is Unavailab… |
| PIC6502B | Service bulletin | Oct 25, 2024 | This Preliminary Information communicates information to the field on how to access the rear compartment in case of a loss of battery power. |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Chevrolet 21-NA-192 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 21-NA-192 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.
Which vehicles does 21-NA-192 cover?
The manufacturer filed it against 6 model years: 2025 Chevrolet Corvette, 2024 Chevrolet Corvette, 2023 Chevrolet Corvette, 2022 Chevrolet Corvette, 2021 Chevrolet Corvette, 2020 Chevrolet Corvette. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.