Skip to the recordSkip to the page
CARSMULTIVERSEWatch a recall

Every recall notice you can read today is the current version. This is one recall where we can show you the earlier one, because the manufacturer had to file again and the earlier filing was never taken down.

What the first filing said

On 13 November 2020, General Motors filed a Part 573 Safety Recall Report with the National Highway Traffic Safety Administration for campaign 20V-701, covering Chevrolet Bolt EV vehicles with high voltage batteries produced at LG Chem’s Ochang facility in Korea. The report gave the potential number of units affected as 50,932.

The remedy, as written that day:

“As an interim remedy, dealers will reprogram the hybrid propulsion control module 2 (HPCM2) to limit full charge to 90%. Until this interim remedy is completed, customers should enable either ‘Hilltop Reserve’ (for 2017-18 model year vehicles) or ‘Target Charge Level’ (for 2019 model year vehicles) using their vehicle’s infotainment center.”

Owners who could not make that change themselves were told not to park the vehicle in a garage or carport until they had visited a dealer.

What the same recall said fourteen months later

On 25 January 2022, General Motors filed again under the same campaign number. The potential number of units affected was now 50,526. The remedy was no longer a software limit.

Dealers will run diagnostics and replace any failing battery module assemblies, and GM will install advanced onboard diagnostic software that “has the ability to detect potential issues related to changes in battery module performance before problems can develop.”

The 90% charge limit, which was the whole of the remedy in 2020, is described in the 2022 filing as an interim measure while the software update is completed.

What moved

  Filed 13 November 2020 Filed 25 January 2022
Vehicles affected 50,932 50,526
What a dealer does Reprograms a control module to cap charging at 90% Runs diagnostics and replaces failing battery modules
Status of the 90% cap The remedy An interim measure
Manufacturer recall number N202311730

An owner who read this notice in 2021 and acted on it in 2022 was acting on a remedy that had been replaced. Nothing in the official record says so, because the official record holds one version at a time.

The number that never caught up

The most recent Part 573 filing for this campaign says 50,526 vehicles. NHTSA’s own live database, queried today, still returns 50,932, which is the figure from the original 2020 filing.

Both numbers are published by the same authority. They differ by 406 vehicles. We are not correcting either one. We are pointing out that they disagree, and that nothing anywhere surfaces it.

Every filing NHTSA holds for this campaign

Six Part 573 reports, in the order NHTSA loaded them. The form carries no amendment number, so the load date is the only ordering the authority publishes. Two were loaded on the same day in November 2022 and carry earlier dates typed into their own labels.

Check this yourself

Everything above comes from documents the authority publishes. You do not have to take our word for any of it.

The same fault, in another country

A recall that crosses a border does not cross it on the same day. We hold 2,053 recalls that appear in more than one national register, and in 387 of them Canadian owners were told before American owners were, sometimes by more than a year.

This is not a rare case. Of the 1,440 most recent American campaigns, 611 have more than one Part 573 filing on record, and one has ten.

Why this page exists

This is one recall. We can show its earlier version because the manufacturer filed more than once and the earlier filings stayed up. For most recalls there is no second filing, and the only way to know what a notice said last year is to have read it last year and kept a copy.

That is what this site does. We read recall notices repeatedly, take a fingerprint of the exact wording each time, and keep every version we have seen. When the wording moves we publish both versions with the hour each was read.

We are not the authority and we are not a substitute for it. If a recall applies to your vehicle, act on the notice the authority and the manufacturer give you. What we can tell you that they will not is whether that notice used to say something else.

Filings read from NHTSA on 31 August 2026. The live database figure was read the same day. Recall data published by the National Highway Traffic Safety Administration is in the public domain. Part 573 reports are written by the manufacturer and published by NHTSA; we link to them rather than reproducing them.

A project by A.I.T. Multiverse Consulting Ltd · cars@aitmultiverse.com