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Manufacturer communication · Service bulletin

Cadillac bulletin 24-NA-237

What it saysThis tehcnical bulletin provides a procedure to correct the condition of Rear View Camera Black Screen with DTC B395A sym 72. NHTSA’s full summary ↓

Cadillac filed this with NHTSA as a service bulletin dated Oct 26, 2024, received Dec 4, 2024, about the electrical system. It names 2 model years (2020–2021). 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 tehcnical bulletin provides a procedure to correct the condition of Rear View Camera Black Screen with DTC B395A sym 72.

Trouble codes it names: B395A

Kind Service bulletin Manufacturer date Oct 26, 2024 Received by NHTSA Dec 4, 2024 Components Electrical System

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
24-NA-237Service bulletinOct 26, 202411011131PDF, 120 KB

What the document itself lists

Parts the bulletin names

Part numberDescriptionQtyFind it
84755784——
85594750—1

Read by machine from the document NHTSA serves (2 pages), read Sep 30, 2026. A part number is shown only where it matches Cadillac’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.

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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What owners reported

Source: NHTSA complaint database

Owners of the 2 model years this bulletin names have filed 29 complaints with NHTSA since 2015. 5 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.

Rear camera/360 camera works intermittently. Vehicle has been recalled for this exact problem and was taken to dealership for correction. Camera became inoperative again and a camera replacement was paid for out of pocket around early 2025. 6 months later, the issue has started again and camera is inoperative when reversing

2020 Cadillac XT4 · Electrical System · filed with NHTSA Sep 30, 2025

When I turn on the vehicle, it will have no sound - audio, turn signal, and most importantly and concerning, seatbelt warning chime. the electrical issues also extend to the hvac sustain have been trying to get this resolved with two dealerships and Cadillac directly for 1.5 almost 2 years.

2021 Cadillac XT4 · Electrical System · filed with NHTSA Dec 1, 2022

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 electrical system

Source: same model, same component group

77 other manufacturer communications filed against the Cadillac XT4 under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Cadillac list.

NumberKindDatedNHTSA’s summary
22-NA-242Service bulletinApr 24, 2025This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Number…
24-NA-113Service bulletinApr 23, 2025This service bulletin provides information for dealers/technicians on Vehicle Wide Programming Instructions.
24-NA-229Service bulletinApr 10, 2025This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system tha…
23-NA-222Service bulletinApr 8, 2025This service bulletin provides repair information to correct a customer concern of Radio Software issues and provide software…
23-NA-160Service bulletinApr 8, 2025This service bulletin provides repair information to correct a customer concern of IVD Radio Software issues.
24-NA-193Service bulletinApr 7, 2025This service bulletin provides repair information on software release Update W52E-176.1.2-M170-SQBR5-250.2 to correct customer concern of ra…
24-NA-136Service bulletinApr 4, 2025This service bulletin provides repair information on new Radio Software Version is W38E-174.4.1-M170-SQBR5-180.5 to correct a customer conce…
25-NA-087Service bulletinApr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs…

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

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

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Cadillac 24-NA-237 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 24-NA-237 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 24-NA-237 cover?

The manufacturer filed it against 2 model years: 2021 Cadillac XT4, 2020 Cadillac XT4. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.