Power Window or Door Lock Not Working — What It Usually Is
Power windows fail at the regulator — the scissor-and-cable mechanism that lifts the glass — more than anywhere else. Locks fail at their small actuator motors. Both live inside the door panel, so labor is a fixed part of the story.
What it actually turns out to be
| The fix involved | Share of visits* | Typical cost† | Median |
|---|---|---|---|
| Window Regulator | 45.4% | $259 – $423 | $328 |
| Switch | 15.4% | $126 – $344 | $216 |
| Glass | 15.1% | $52 – $315 | $169 |
| Door Handle | 8.0% | $124 – $272 | $183 |
| Module / Actuator | 3.6% | $254 – $696 | $413 |
| Lock / Latch | 2.0% | $137 – $449 | $264 |
| Cables / Wiring | 2.0% | $121 – $392 | $225 |
| Other, rarer causes | smaller shares | varies | — |
*Share of visits whose repair involved this part. Combined repairs count toward each
part involved, so shares overlap and don't add up to 100%. Among visits that ended in a parts repair.
†Middle half of real invoices (25th–75th percentile) when this was the only fix — parts + labor, all vehicle types.
Real repair reports
These are recent, paid visits for this complaint — the words as the owner said them, and what it turned out to be.
Car owners said
“Driver front window won't roll up”
“Passanger window not working”
“Drivers window won't go up”
“Power window not working”
“Diag window stuck halfway down”
“Pass front window fell down”
What the technician found
“Check windows found no power found relay bad”
“Driver's side window doesn't go all the way up or down”
“Drivers front window regulator has come apart, recommend replacing the motor and regulator together. This unit has to be removed with the door glass and riveted back together then installed Door handle bezel broken upon arrival”
“Rotate tires front to rear and inspect for wear or damage. does not include tpms services as needed”
Window fell into the door
A thunk followed by glass that won't rise is a snapped regulator cable — the defining regulator failure. The motor often survives and gets reused.
Works from one switch but not the other
A window that obeys the driver's switch but not its own (or vice versa) is a switch problem — cheaper than a regulator, and a common water-ingress casualty.
Lock clicks but doesn't move
A lock that buzzes or half-moves has a dying actuator. One failed actuator is a part; several failing together on an older car is a known pattern on some models.
Take this to the shop
The FixDozer Diagnosis Brief puts this page on one printable sheet: what this complaint usually turns out to be, how often, and what each fix should cost — so when the diagnosis comes back, you already know whether the number fits.
Download the Diagnosis Brief (PDF)View it online · Narrow it down for your vehicle