Cadillac over-the-air update DRIVING & CONNECTIVITY 2026.3
What it saysFixes to help ensure start reliability and prevent battery drain Improved charging performance and messages More control over the head-up display position, with image layers now moving together Quicker, smoother head-up… NHTSA’s full summary ↓
Cadillac filed this with NHTSA as an over-the-air update dated Oct 5, 2026, received Nov 1, 2026 — 1 document under this number: 663.50. It names 1 model year (2027). An over-the-air update is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
Get the next Cadillac Lyriq 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 communication• Fixes to help ensure start reliability and prevent battery drain • Improved charging performance and messages • More control over the head-up display position, with image layers now moving together • Quicker, smoother head-up display brightness adjustments as outside lighting changes • Improved head-up display reliability to help prevent blank displays
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 663.50 | Over-the-air update | Oct 5, 2026 | 11038827 | PDF, 202 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.
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 Cadillac bulletins for the Lyriq
A weekly email, sent only in a week when Cadillac 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.
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Cadillac DRIVING & CONNECTIVITY 2026.3 a recall?
No. A over-the-air update 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 DRIVING & CONNECTIVITY 2026.3 repair free?
A over-the-air update is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does DRIVING & CONNECTIVITY 2026.3 cover?
The manufacturer filed it against 1 model year: 2027 Cadillac Lyriq. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.