Diagnosis Brief
what this complaint usually turns out to be
what this complaint usually turns out to be
Brake Light Not Working — What It Is, and What It Costs
How real visits for a brake light out ended at independent shops across the US — the part actually replaced, how often, and what it cost when it was the only fix.
Bulb
The single most common outcome — nearly half of these visits when combined with the runner-up
Bulb $38 – $146
Switch $126 – $344
typical cost when it was the only fix
(parts + labor)
(parts + labor)
| The fix involved | Share of these visits* | Typical cost† | Median |
|---|---|---|---|
| Bulb | $38 – $146 | $73 | |
| Switch | $126 – $344 | $216 | |
| Light assembly | $58 – $262 | $130 | |
| Fuse | $56 – $239 | $115 | |
| Cables / wiring | $121 – $392 | $225 | |
| Other, rarer causes | smaller shares — brake-light switches, sockets, wiring to the trailer connector | varies | — |
*Share of visits whose repair involved this part; combined repairs count toward each part, so shares overlap and don't add to 100%. †Middle half of real invoices when this was the only fix — parts + labor, all vehicle types.
Which one is yours? Listen first
- One brake light out — A single dead brake light is a bulb or a corroded socket — the dominant outcome here.
- All brake lights out — When no brake lights work — often discovered by an annoyed driver behind you — the brake-light switch at the pedal is the classic answer.
- The center light — The high-mount center light often fails separately, and on many vehicles it's an LED strip serviced as an assembly — the pricier corner of an otherwise cheap repair family.
What to expect from the shop
One out is a bulb or socket; all out is the brake-light switch at the pedal, a quick job. Expect the shop to check the fuse and switch before anything else. A center high-mount light may be an LED strip serviced as a unit — the pricier corner of a cheap family.
About this data · How to use this brief
Vehicles all makes and models, US fleet
Data confidence High — large sample, stable shares
Records through July 2026, refreshed continuously
Source paid invoices from independent US repair shops
Data confidence High — large sample, stable shares
Records through July 2026, refreshed continuously
Source paid invoices from independent US repair shops
Take it to the shop. It tells you what the likely answers are and what each one should cost — so when the diagnosis comes back, you already know whether the number fits. Vehicle-specific price reports for the common fixes are on fixdozer.com.