GM bulletin 23-NA-062
What it saysThis service bulletin provides repair information to correct a customer concern of Rear View Camera Coaxial Related Issues - DTCs B395A, B395B, B395C, B101E, B101D. NHTSA’s full summary ↓
GM filed this with NHTSA as a service bulletin dated Jun 1, 2023, received Apr 14, 2023, about the back over prevention — 2 documents under this number. It names 79 model years across Chevrolet, GMC, Buick and Cadillac (2019–2023). 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 · Buick · Cadillac.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis service bulletin provides repair information to correct a customer concern of Rear View Camera Coaxial Related Issues - DTCs B395A, B395B, B395C, B101E, B101D.
Trouble codes it names: B101D B101E B395A B395B B395C B390F 1 of 6 read from the document itself
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23-NA-062 | Service bulletin | Jun 1, 2023 | 10237843 | PDF, 162 KB |
| 23-NA-062 | Service bulletin | Mar 31, 2023 | 10234186 | PDF, 160 KB |
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.
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Model years it names
Source: as the manufacturer filed themChevrolet 33 model years
GMC 22 model years
and 14 more on this site: 2019 GMC Sierra, 2023 GMC Sierra 2500HD, 2022 GMC Sierra 2500HD, 2021 GMC Sierra 2500HD, 2020 GMC Sierra 2500HD, 2023 GMC Sierra 3500HD, 2022 GMC Sierra 3500HD, 2021 GMC Sierra 3500HD, 2020 GMC Sierra 3500HD, 2023 GMC Terrain, 2022 GMC Terrain, 2021 GMC Terrain, 2020 GMC Terrain, 2019 GMC Terrain.
Buick 9 model years
and 1 more on this site: 2019 Buick LaCrosse.
Cadillac 15 model years
and 7 more on this site: 2022 Cadillac XT5, 2021 Cadillac XT5, 2020 Cadillac XT5, 2023 Cadillac XT6, 2022 Cadillac XT6, 2021 Cadillac XT6, 2020 Cadillac XT6.
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 79 model years this bulletin names have filed 11,054 complaints with NHTSA since 2015. 2,170 of them name Electrical System, Back Over Prevention — 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 2019 Chevrolet Silverado, the 72 owners who gave an odometer reading for Electrical System reported it at a median of 11,750 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
In the early morning hours of october 21st, around 3am, we were woken up by smoke/fire alarms. We started running around our home to identify the cause of the alarm. After about 5 minutes of searching inside the home and finding nothing, we realized that there was some smell of smoke coming from the garage and when the mudroom door which…
2019 Chevrolet Bolt EV · Electrical System · filed with NHTSA Oct 30, 2020
I rely heavily on this vehicle for my business and within 1 year of ownership, the vehicle broke down on the highway allowing it to only run @ 30mph. After finally locating a dealer who could evaluate the vehicle in less than 1 week, I was informed that the part was unavailable and they indicated, "it could take 1 month or 3 months to…
2023 GMC Sierra 2500HD · Electrical System · filed with NHTSA Jun 6, 2025
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
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 back over prevention
Source: same model, same component group30 other manufacturer communications filed against these GM models under the same component group (back over prevention), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 25-NA-081 | Service bulletin | Mar 31, 2025 | Some customers may comment on the park assist switch flashing and/or a ‘Service Side Detection’ DIC message. |
| PIT5907D | Service bulletin | Dec 11, 2024 | This Preliminary information communicates a issue where the park assist module can set current communication dtc's due to a timing issue and… |
| PIT5697D | Service bulletin | Dec 4, 2024 | This Preliminary information communication provides information to the technician on installing Regular Production Option Code UVC Rearview… |
| PIT6161 | Service bulletin | Apr 30, 2024 | This Preliminary information communicates an issue with the side object detection module shown unavailable due to a sticker wrongly placed o… |
| PIT6140 | Service bulletin | Mar 21, 2024 | This preliminary information discusses potential camera functional issues if the camera is not properly programmed. |
| PIT6105B | Service bulletin | Mar 19, 2024 | This Preliminary information communicates to dealership technicians that they will need to perform this step prior to performing any program… |
| PIT6123B | Service bulletin | Mar 11, 2024 | This Preliminary information communicates on a software anomaly that causes a Rear Auto Brake and Park Assist Unavailable message on start u… |
| PIT6130 | Service bulletin | Mar 8, 2024 | This Preliminary information communicates a vehicle may be encountered with a grid type box showing at the front of the vehicle in the camer… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Chevrolet, GMC, Buick and Cadillac, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM 23-NA-062 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-062 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 23-NA-062 cover?
The manufacturer filed it against 79 model years across 4 brands (Chevrolet, GMC, Buick and Cadillac): 2023 Buick Enclave, 2022 Buick Enclave, 2021 Buick Enclave, 2020 Buick Enclave, 2023 Buick Encore, 2022 Buick Encore and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.