GM bulletin 23-NA-046
What it saysThis service bulletin provides a procedure to check for water intrusion at the door electrical connectors and repair the wiring if found the cause of customer concerns of Power Windows and/or Mirrors Inoperative, Power… NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Jan 18, 2024, received May 6, 2023, about the structure — 2 documents under this number. It names 14 model years across Chevrolet and GMC (2018–2024). 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 service bulletin provides a procedure to check for water intrusion at the door electrical connectors and repair the wiring if found the cause of customer concerns of Power Windows and/or Mirrors Inoperative, Power Seat Movement Inoperative and/or Moving On Its Own, Side Object Detection Inoperative and/or Unwanted Activation, Power Door Lock Cycle Inoperative, Keyless Entry Inoperative.
Trouble codes it names: B3125 B3130 B3135 all 3 read from the document itself; NHTSA’s summary names none
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23-NA-046 | Service bulletin | Jan 18, 2024 | 10249764 | PDF, 78 KB |
| 23-NA-046 | Service bulletin | Apr 17, 2023 | 10235767 | PDF, 77 KB |
What the document itself lists
The manufacturer titles it “Power Windows and/or Mirrors Inoperative, Power Seat Movement Inoperative and/or”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 23487135 | X PLUG, BODY H/ | — | eBay Motors → |
| 25883487 | — | — |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 2086118 | Inspect Door Pass-Through Connectors for Water Intrusion | 0.5 hrs |
Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches GM’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.
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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 7 model years
GMC 7 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 14 model years this bulletin names have filed 2,448 complaints with NHTSA since 2015. 361 of them name Electrical System — 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 the 2018 Chevrolet Equinox, the 27 owners who gave an odometer reading for Electrical System reported it at a median of 39,910 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
Driving my vehicle with no warnings, messages, or symptoms on adaptive cruise control Sunday on in Michigan. I changed lanes into the right lane when the vehicle abruptly, without notification, and with force, caused braking that unexpectedly and dangerously slowed the vehicle then released braking before doing the same a moment later.
2021 GMC Terrain · Electrical System · filed with NHTSA Jul 1, 2025 · ODI 11670483
Took dealer 3/26 for Sam issue Engine Power reduced after already cause me hit curb. Got it out 4/1/26 Now 4/5/26 it happened again same codes after they claimed they fixed it. Also keep having Emergency services come on a caused my dashboard out. My issues is car keeps stalling losing power. Same codes as week ago after dealer fix.
2023 GMC Terrain · Electrical System · filed with NHTSA Apr 5, 2026 · ODI 11729297
The navigation/media center will either go completely black or completely white screen even when backing up you lose the camera and can't shut off the radio. If the screen goes white during evening driving the reflection of the windshield is so severe I can't drive and the system will not shut off when the power button is depressed.
2018 GMC Terrain · Electrical System · filed with NHTSA Jan 28, 2019 · ODI 11172503
In depth: 2018 Chevrolet Equinox electrical problems →
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 these GM models 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 |
|---|---|---|---|
| 24-NA-156 | Service bulletin | Apr 30, 2025 | This technical bulletin provides information and a procedure to correct the condition of Information on Dealer Installed Accessory Trailer H… |
| PIE0829 | Service bulletin | Apr 18, 2025 | This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engine… |
| 19-NA-255 | Service bulletin | Mar 11, 2025 | This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peel… |
| 25-NA-020 | Service bulletin | Mar 5, 2025 | This technical bulletin provides a procedure to correct the condition of Service Power Liftgate Message Displayed or Rear Liftgate Unable to… |
| 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. |
| 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… |
| PIT6219A | Service bulletin | Jan 7, 2025 | This Preliminary information communicates that a dealer may find the underhood beauty covers missing. The dealer is advised that these are m… |
| 24-NA-083 | Service bulletin | Dec 11, 2024 | This informational bulletin provides information on EV Charge Inlet Dust Cover Replacement Information. |
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 23-NA-046 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 23-NA-046 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 23-NA-046 cover?
The manufacturer filed it against 14 model years across 2 brands (Chevrolet and GMC): 2024 Chevrolet Equinox, 2023 Chevrolet Equinox, 2022 Chevrolet Equinox, 2021 Chevrolet Equinox, 2020 Chevrolet Equinox, 2019 Chevrolet Equinox and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.