Production has resumed this week at Jaguar Land Rover this week following a temporary shutdown.
Around 4,000 DHL employees stationed at JLR's Lode Lane plant in Solihull returned to work on Monday (November 5) after the UK car giant announced a production freeze on October 22.
Agency staff on JLR logistics contracts had their wages protected throughout this period, following an agreement secured by union Unite.
Prior to the shutdown, the car maker also revealed workers at the Castle Bromwich plant would be on a three-day week until Christmas.
Last week Jaguar Land Rover announced sales had fallen by 13.2 per cent to 129,887 vehicles for the three months to September 30.
The company reported revenues of £5.6billon and a pre-tax loss of £90million for the three-month period.
The production freeze was initially reported by BirminghamLive, based on letters sent to DHL staff who work in logistics operations at the Solihull factory.
The latest move came just three weeks after it was revealed staff at the Jaguar factory in Castle Bromwich were told they would be moving to a three-day week.
The Solihull plant is the spiritual home of Land Rover, where the famed 4x4 vehicles have been made since 1948.
The vehicles currently produced there are the Range Rover, Range Rover Sport, Range Rover Velar, Land Rover Discovery and Jaguar F-Pace.
A Jaguar Land Rover spokesman said the Castle Bromwich shutdown had been scheduled for some time.
“We are on a shut down but this is a regularly scheduled shutdown that has been in the calendar for the last 12 months,” said the spokesman.
“We are closed for the school half-term holiday and had exactly the same shutdown this time last year.”
And just yesterday Jaguar Land Rover dismissed allegations of an early Christmas production shutdown - insisting that "strong rumours" circulating among employees at one of its biggest suppliers were false.
An announcement was sent out to staff at Unipart, a company which manufactures bumpers within JLR's parts distribution centre.
Unipart is one of Europe's leading independent logistics’ companies and employs around 500 people in the Coventry area.
A leaked document signed by Unipart managing director Dave Pound read: "There are strong rumours that JLR Solihull will shut down early for the Christmas holiday which will have significant impact on our production volumes which is completely outside of our control.
"We have no choice during this financially challenged year but to take drastic action to mitigate some of this impact."
Management at Unipart were, as of November 6, "planning on Solihull finishing production for two additional weeks on December 7" with Unipart employees scheduled to return to work on January 2, 2019.
The leaked document has since been shared among DHL and JLR workers both in Solihull and at Castle Browmich via WhatsApp.
An anonymous DHL employee, who delivers parts to the track at Lode Lane, told BirminghamLive : "It has been going around at JLR Solihull.
"There was strong rumours before the last stand down about there being another stand down at Christmas from December 7 to January 7, this memo adds to it.
"It's still a hot topic. There's no smoke without fire usually.
"Everyone's worried about their livelihoods and not having any money at an expensive time of year, especially workers with young families.
"No-one's really passing on any information to us and what we hear from the union conflicts with what we are hearing from management."
You can watch a video explainer of the previous two-week production freeze at JLR below
Unipart later clarified its December arrangements, with bosses confirming they were simply "planning ahead just in case".
A spokesman for Unipart said: "We’ve been informed by [Jaguar Land Rover] that there will not be an early shutdown in December and that there is no need for the plan that we shared with our teams.
"However, forward planning is essential to today’s manufacturing operations to manage the rapid changes that can occur.
"We’ve always made it clear to our employees that we will work together with the employee forum to plan for potential changes to production schedules by our customers.
"Engaging employees in planning flexibility and resilience into our operations is becoming more essential in times of uncertainty.
"We will continue to work openly and honestly with our colleagues to manage through these situations while protecting the long-term employment of our people."
BirminghamLive spoke at length with JLR, with the luxury car giant calling allegations of a month-long shutdown from December 7 speculation and hearsay.
A spokesman added: "Nothing has been agreed or discussed."
Workers at Jaguar Land Rover are scheduled to break up on December 21 and return to work on January 2.
A Unite spokesman said: "These are uncertain times for car workers, not just at JLR but across the industry, which have been compounded by the government’s confused approach to diesel and botched handling of Brexit.
"Unite is continuing to press JLR on commitments to future models to be made here in the UK to ensure the car maker remains a powerhouse of the West Midland economy and source for decent, well-paid jobs.
"The government must play its part, too.
"JLR workers are world beaters and have worked hard to turn the car maker around in the last decade.
"The government must help secure their future by getting a Brexit deal that secures frictionless, tariff-free trade with Europe.
"At the same time ministers must repair the damage done over diesel by supporting a ‘just transition’ to electric and alternative power vehicles as part of an industrial strategy."