How Long Can a Dealership Hold Your Car in Massachusetts?

In Massachusetts, a dealership or repair shop is expected to finish work on your car the same day you drop it off. A longer hold is only lawful if you agreed to it or the shop can prove the delay was caused by something it could not have reasonably anticipated. There is no fixed “30-day” ceiling in the statute, but separate lemon law rules convert a long repair hold into a refund right once your car has been out of service for 15 business days (new) or 10 business days (used). So the real answer to how long a dealership can hold your car in Massachusetts depends on what kind of repair it is, whether you authorized the work, and whether the vehicle is covered by the lemon law.

The Same-Day Default

Under 940 CMR 5.05, a repair shop commits an unfair or deceptive practice if it fails to complete repairs on the same day you bring the vehicle in.¹ Only two things excuse a longer hold: you were told about the delay and agreed to it, or the shop can show the delay was caused by circumstances beyond its control that could not have been reasonably anticipated.

That second exception is where most arguments happen. A part shipping from a warehouse across the country is probably beyond the shop’s control. A backlogged work queue because the shop took on too many jobs is not. The regulation puts the burden on the shop to justify the delay. A vague “we’re still working on it” does not meet it.

When a delay is legitimate, the standard is reasonableness. What counts is how complex the repair is, whether the parts are available, how quickly the shop ordered them, and whether the shop kept you informed. A two-week wait for a part on national backorder with regular updates looks very different from two weeks of silence.

Authorized Work vs. an Unlawful Hold

A dealership can lawfully keep your finished car if you have not paid for repairs you authorized. Massachusetts recognizes a mechanic’s lien, which gives the shop a security interest in the vehicle for the cost of approved work. If you dispute a charge, the shop is not obligated to hand over the keys until the bill is settled.

The weight of that lien depends entirely on the word “authorized.” Before a shop charges you for anything, it must get your written authorization listing the specific repairs and the total price for parts and labor.¹ If the exact repairs are not known at drop-off, the shop has to call you with the specifics and the price and get verbal authorization before starting work.

Once the job is underway, if the shop finds additional repairs are needed, or the cost will exceed the authorized price by more than $10, it must stop, contact you, and get your approval before continuing.¹ A shop that performs unauthorized work and then refuses to release your car until you pay for it is violating the regulation. That $10 threshold is deliberately low and exists to prevent padded bills from “while we were in there” add-ons.

You can sign a written waiver allowing the shop to do work up to a dollar amount you specify without calling first. The waiver has to be printed clearly and require a separate signature. If you sign one, keep a copy so you know your ceiling.

When Repair Delays Trigger a Refund: The Lemon Law Thresholds

If the car has a serious defect and the dealer keeps failing to fix it, the question changes from “how long can they hold it?” to “when do I get my money back?” Massachusetts has two lemon laws, one for new vehicles and one for used, each with its own day count.

New Vehicles

The new car lemon law covers cars, vans, trucks, and motorcycles purchased or leased from a dealer for personal use, during the first year of ownership or the first 15,000 miles, whichever comes first.² Within that window, your car qualifies as a lemon if either threshold is hit:

The same defect has been brought in for repair at least three times and still is not fixed.³
The car has been in the shop for repairs for a cumulative total of 15 or more business days, for any combination of defects.³

Once either threshold is met, you are entitled to a full refund of the purchase price (including trade-in value) minus a reasonable use allowance, or a replacement vehicle. You have an absolute right to reject a replacement and demand the refund.³

Used Vehicles

The used car lemon law covers used cars, vans, and trucks (not motorcycles) bought from a Massachusetts dealer for personal use, priced at $700 or more, with fewer than 125,000 miles at sale.⁴ “Dealer” here includes anyone who sells more than three cars in a 12-month period, licensed or not. The mandatory warranty runs:

Under 40,000 miles: 90 days or 3,750 miles, whichever comes first
40,000 to 79,999 miles: 60 days or 2,500 miles
80,000 to 124,999 miles: 30 days or 1,250 miles
125,000 miles or more: no mandatory warranty

Within the warranty period, the car qualifies as a lemon if the dealer fails to fix the same defect within three attempts, or if the car is out of service for more than a cumulative 10 business days and a defect that impairs use or safety still exists.⁴ When either threshold is met, the dealer has to accept the car back and refund the repurchase price, minus a reasonable use allowance.

The Final Repair Attempt

Before you can demand a refund or replacement, the manufacturer (for a new car) or dealer (for a used car) gets one last chance to fix the problem. For new vehicles, that final attempt cannot exceed seven business days, counted from the day the manufacturer knew or should have known that the three-attempt or 15-day threshold had been reached.³ This final attempt can extend beyond the original one-year/15,000-mile protection period.

To start the clock on a new car, send a letter to the manufacturer stating that you have allowed a reasonable number of repair attempts and are invoking your right to a final repair opportunity.² Be specific about how many attempts have been made or how many business days the car has been in the shop, and keep a copy. If the defect persists after this attempt, you have met every prerequisite for a refund or replacement.

What to Do When the Hold Is Unreasonable

Many disputes do not fit the lemon law. The car is in for a routine repair and the shop just keeps missing deadlines. The Massachusetts Consumer Protection Act gives you a separate path.

Build the Paper Trail

Gather the original written estimate, every updated repair order, invoices, and receipts for costs you have incurred because of the delay, such as rental cars or rideshare expenses. Keep a log of every phone call: date, time, who you spoke with, what they said. Save every email and text. This record matters because the burden shifts to the shop once you can show a pattern of delay without justification.

Send a 30-Day Demand Letter

Before you can sue a business under Chapter 93A, you must send a written demand letter at least 30 days in advance.⁵ Describe the unfair conduct (the unreasonable delay, lack of communication, any unauthorized charges), identify the harm, and state what you want, typically immediate return of your vehicle and reimbursement of related expenses.⁶

The dealership then has 30 days to respond. The letter is not optional; skipping it means you cannot file a 93A claim in court. It also carries real leverage. If a court later finds the dealership willfully or knowingly violated the statute, or refused your demand in bad faith, you can recover up to three times your actual damages plus attorney’s fees.⁵ The threat of triple damages is why many shops take the demand letter seriously.

File a Complaint With the Attorney General

If the demand letter goes unanswered or the response is inadequate, you can file a complaint with the Attorney General’s Consumer Advocacy and Response Division online.⁷ The office may mediate between you and the dealership, and the complaint creates an official record. You can also reach the division at (617) 727-8400.⁸

For disputes within the small claims range, filing a small claims action after your 30-day demand period expires is often the most practical route. You do not need a lawyer, and the demand letter you already sent satisfies the 93A prerequisite.

1
Cornell Law Institute. 940 CMR 5.05 – Repairs and Services
2
Mass.gov. Guide to New and Leased Car Lemon Law
3
General Court of Massachusetts. Massachusetts General Laws Chapter 90, Section 7N1/2
4
Mass.gov. Guide to Used Vehicle Warranty Law
5
General Court of Massachusetts. Massachusetts General Laws Chapter 93A, Section 9
6
Mass.gov. 30 Day Demand Letter
7
Mass.gov. File a Consumer Complaint
8
Mass.gov. Getting Your Car Repaired