Verified
Michigan Trailer Brake Laws 2026: Required Over 3,000 lb
Michigan source review verifies MCL 257.705 and the surge-brake cross-reference. The rule set supports the 3,000 lb gross-weight brake trigger with separate all-wheel and surge-brake language.
- Brake threshold
- 3,000lbgross weight
- Breakaway switch
- Not required statewide
- Safety chains
- Required
- Towing speed
- Posted limits
- Double towing
- Not recorded
On this page8 sections
Quick answer: 3,000 lb gross weight
In Michigan, trailer brakes are currently listed at 3,000 lb (gross weight). Michigan measures gross weight, so weigh the trailer as you actually tow it.
Michigan trailer equipment rules
Breakaway switch
The brake-equipment statute imposes no breakaway or automatic-application duty. It requires only that trailers of 15,001 lb gross weight or more have brakes on all wheels designed to be applied by the driver from the towing vehicle's cab.
- Applies when
- Trailer type and weight may matter
- Last checked
- 2026-08-21
Safety chains
A towed vehicle or trailer must be connected by suitable safety chains or devices, one on each side of the coupling at the extreme outer edge, each of sufficient strength to haul the vehicle or trailer when loaded. Crossing is not required.
- Applies when
- Conventional trailer couplings
- Last checked
- 2026-08-21
Speed / lane rule
No towing-specific limit for passenger vehicles or pickups. Where the posted limit exceeds 65 mph, trucks of 10,000 lb or more and truck-tractors with a trailer may not exceed 65 mph.
- Applies when
- Posted roads and vehicle combinations
- Last checked
- 2026-08-21
Double towing
Needs verification with Michigan Vehicle Code.
- Applies when
- Multiple-trailer combinations
- Source
- Verified
- Last checked
- 2026-07-13
Read against the linked sources on . Statutes change and enforcement varies by trailer type — confirm before you tow.
Check your setup
How the 3,000 lb threshold applies to three trailers
Michigan measures gross weight, so the weight of the trailer as loaded is what counts.
| Example trailer | Weight checked | Against 3,000 lb |
|---|---|---|
| Small utility trailer | 1,650 lb | Under the Michigan threshold by 1,350 lb |
| Loaded just under the line | 2,900 lb | Inside the Michigan limit, but one heavy load away from crossing it |
| Mid-size travel trailer | 4,800 lb | Over the Michigan threshold by 1,800 lb — brakes required |
How Michigan compares with neighbouring states
None of the 3 states bordering Michigan set a stricter numeric brake threshold in this dataset, but bases and equipment rules still differ — check each state page before a trip.
| Bordering state | Brake threshold | Compared with Michigan |
|---|---|---|
| Indiana | 3,000 lb gross weight | Same threshold |
| Ohio | verified trailer-type rule | Different rule type — compare directly |
| Wisconsin | 3,000 lb gross weight | Same threshold |
Planning a multi-state trip? The route brake law checker compares every state on a route at once.
Official source links
- MCL 257.705 brake equipment statute
- MCL 480.13a surge brakes statute
- Michigan DOT dot
Michigan towing law FAQ
Are trailer brakes required in Michigan?
Michigan currently lists a trailer brake threshold at 3,000 lb gross weight. Always verify the official state source before towing.
What weight requires trailer brakes in Michigan?
The current data lists 3,000 lb gross weight as the brake threshold.
Is a breakaway switch required in Michigan?
The brake-equipment statute imposes no breakaway or automatic-application duty. It requires only that trailers of 15,001 lb gross weight or more have brakes on all wheels designed to be applied by the driver from the towing vehicle's cab. (Mich. Comp. Laws 257.705(1)(c))
Are safety chains required in Michigan?
A towed vehicle or trailer must be connected by suitable safety chains or devices, one on each side of the coupling at the extreme outer edge, each of sufficient strength to haul the vehicle or trailer when loaded. Crossing is not required. (Mich. Comp. Laws 257.721(3))
Can I tow two trailers in Michigan?
Needs verification with Michigan Vehicle Code.
Is there a towing speed limit in Michigan?
No towing-specific limit for passenger vehicles or pickups. Where the posted limit exceeds 65 mph, trucks of 10,000 lb or more and truck-tractors with a trailer may not exceed 65 mph. (Mich. Comp. Laws 257.627(4))
Does Michigan measure trailer weight as GVWR or actual weight?
Michigan uses gross weight, so weigh the trailer as you actually tow it rather than reading the data plate.
Where can I verify Michigan towing laws?
Start with the 3 official sources linked on this page, beginning with MCL 257.705 brake equipment. Prefer state DOT, DMV, legislature, or public-safety pages over summaries from private websites. This page was last checked on 2026-07-13.
Disclaimer: educational summary, not legal advice. Statutes and enforcement practice change — verify the Michigan sources linked above before towing.