By Matt Busel, who built the apps, crates and game he writes about · every number links to its source and every dataset is downloadable (methods) · corrections · featured in Kirino, gamebiz, This Week in Rust, New Mobile Life, By-Press
Honda Prologue: 384 axle complaints. Its 5 GM twins: zero
On this page · 9 sections
- Key numbers
- Same platform, same factory family, one car clicks
- It is not a volume trick
- The complaints come in waves, and they have not stopped
- Follow the money: who pays for 384 clicking axles
- The rest of the Prologue file: steering and suspension lead
- Why nobody added this up before
- What this means for you
- Sources
Short answer: Yes, the Honda Prologue has an axle problem, and the federal data says it is a Honda problem. We pulled every owner complaint NHTSA holds on the six GM Ultium SUVs. The Prologue has 384 that name the axle, CV joint or half shaft. The Chevrolet Blazer EV, Equinox EV, Cadillac Lyriq, Optiq and Acura ZDX, built on the same platform by the same supplier base, have zero between them.
TL;DR: We pulled 1,630 NHTSA complaints across six Ultium EVs, deduped by complaint number, through Oct 25 2026. The Prologue alone has 1,028 of them and 384 mention a failing front axle, while its five GM-badged twins log 602 complaints and not one axle mention. Honda has three recalls on the Prologue (a control arm and two backup camera fixes) and none for the axle, even as 184 new axle complaints arrived in 2026 alone.
Key numbers
| What | Number | Source, checked Oct 28 2026 |
|---|---|---|
| Honda Prologue complaints to NHTSA | 1,028 | NHTSA ODI flat files |
| Prologue complaints naming axle / CV joint / half shaft | 384 (37%) | NHTSA ODI flat files, our text match |
| Same, five GM-built Ultium twins combined | 0 of 602 | NHTSA ODI flat files |
| Axle complaints filed in 2026 so far | 184 | our data.csv |
| Prologue recalls covering the axle | 0 of 3 | NHTSA recalls API |
Same platform, same factory family, one car clicks
The Prologue is a GM car with a Honda badge. GM builds it in Mexico on its Ultium EV platform, next to the Blazer EV and Equinox EV, and the Acura ZDX shares the same bones.
That makes this a rare natural experiment. If the axle complaints came from the platform, the battery weight or the motors, the twins would show them too. They do not.
We ran the same text match (axle, CV joint, half shaft, drive shaft) over every complaint narrative for all six models. Prologue: 384. Equinox EV: 0 of 284. Lyriq: 0 of 138. Blazer EV: 0 of 99. ZDX: 0 of 59. Optiq: 0 of 22.
The symptom is the same in almost every report: a clicking or clunking from the front end when turning, often from a few thousand miles. One owner wrote: "I have had 8 axle replacements and still the issue is not repaired." Another: "Front CV axles are bad. Honda dealer diagnosed front left axle as needing to be replaced. Front right axle is now behaving the same. Parts are on back order."
It is not a volume trick
The Prologue outsold the Blazer EV in 2024, so it should have more complaints. It does: 1,028 versus 99. But volume cannot turn zero into 384.
The Equinox EV, a high-volume car with 284 complaints, would be expected to carry dozens of axle reports if the rate matched Honda's 37%. It carries none. Whatever is different sits in the part of the car that says Honda, not the part that says Ultium.
We cannot see from public records whether that is a Honda-specified axle, a different supplier, a tuning choice or a service practice. Nobody has published that answer. The data only says where the failures land, and it lands on one badge.
The complaints come in waves, and they have not stopped
Owners filed 219 Prologue complaints in January 2025 alone, then another 114 in December 2025. Those spikes look like owner-forum filing drives, and that is fine: complaint counts are exactly what pushes NHTSA to open an investigation.
The axle share is climbing, not fading. In 2026, 184 of 400 Prologue complaints (46%) name the axle, up from 200 of 628 (32%) before.
Follow the money: who pays for 384 clicking axles
Right now the owner and the warranty budget do. Honda's three Prologue recalls cover a lower control arm (24V540) and the backup camera (26V112, 26V306). There is no recall for the axle, so every fix runs through a dealer one car at a time, with parts on backorder.
A recall would move that cost onto Honda, set a fix for every car and put it on the used-car history report. Until then, a buyer looking at a used 2024 Prologue (328 of the 384 axle complaints are model year 2024) has no recall flag to warn them.
A suit filed in the Eastern District of Pennsylvania in March 2026 already alleges defective front drive axles on 2024 to 2026 Prologues, according to Lemberg Law. Our count is the evidence base that case and any NHTSA petition can stand on.
The rest of the Prologue file: steering and suspension lead
Axles are not the only thing owners report. NHTSA tags each complaint with components, and one complaint can carry several. On the Prologue, steering shows up on 306 complaints, suspension on 242, electrical on 201 and power train on 179.
Those are the codes an axle complaint tends to land in, because owners and NHTSA staff file a clicking front end under whatever system feels closest. The pattern fits one mechanical story told four ways.
Model year matters too. 859 of the 1,028 complaints are on 2024 cars, the first year Honda sold the Prologue. Of the axle complaints, 328 are 2024 and 56 are 2025, so the newer cars are not clean either.
Why nobody added this up before
Complaint sites and law firms already list Prologue totals and quote the clicking axle reports one by one. What none of them does is put the Prologue next to its own twins in the same federal file, which is the only comparison that separates a platform problem from a Honda problem.
That join took one download and a dozen lines of code. The records are public and free. Anyone can rerun it: grab the flat files, filter the six models, match the narrative text, and the 384 versus 0 falls out.
That is the point of publishing the CSV. A buyer, a lawyer, a dealer or an agent scraping used-car listings can use the same numbers today, without trusting us.
What this means for you
Own a Prologue that clicks on turns? File it at nhtsa.gov/report-a-safety-problem and keep every repair order. Buying a used one? Ask for the axle replacement history and test it with full-lock turns from a stop. Building a tool for car buyers or lawyers? Our data.csv has 1,675 Ultium complaints (Silverado EV included) with the axle flag, ready to join to VINs, recalls or sales.
Want a company like Honda watched for you? Company Watch ($99/mo) tracks federal filings, contracts and lobbying on the names you pick and flags changes. We keep fixing it at no extra cost until it does what it promises. More data pieces live on /news/ and under economics, and our Cash App complaints count uses the same method on the CFPB.
Not financial advice: this is complaint data, not a verdict on Honda stock or any purchase. Method: NHTSA complaint flat files 2020-2024 and 2025-2026, file through Oct 25 2026, deduped by ODI number; text match is ours and may include a few passing mentions (a random sample of the matches read as real axle reports). Complaints are unverified owner reports.
Sources
First published here on tensorust.com on Oct 28, 2026. Related: .
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