Car Window Goes Down but Not Up? Try These Fixes

You just pulled up to a drive-through or a parking garage, pressed the window button, and nothing happened. The glass went down fine a minute ago, but now it won't come back up. If your car power window goes down but not up, the motor, relay, or switch is usually the culprit. This kind of failure is annoying and in bad weather or sketchy areas, it's a real security problem. Knowing how to troubleshoot the switch, relay, and motor saves you time, money, and the frustration of driving around with your window stuck open.

Why would a power window go down but refuse to go up?

Power windows use a reversible DC motor. When you press the switch one way, the motor spins clockwise and the window goes down. Press it the other way, it reverses and pulls the window up. The switch sends power in one polarity for "down" and the opposite polarity for "up." When the window goes down but not up, it means one direction of the circuit is broken usually at the switch, the wiring, or the relay while the other still works. The motor itself is often fine.

The role of the window switch

Each power window switch is actually a set of contacts inside a small housing. Over time, the contacts that control the "up" direction wear out, corrode, or get dirty. Since you press "down" just as often as "up," you might wonder why only one side fails. The answer is that the "up" contacts carry a slightly different load depending on the design, and sometimes moisture or grime collects on one side more than the other. The driver's master switch is the most common failure point because it controls all windows and gets used the most.

What the relay does in this system

Some vehicles use a dedicated window relay to manage the high current the motor draws. The relay acts as a gate the switch sends a small signal to the relay, and the relay closes a heavier contact to send full battery power to the motor. If the relay's "up" coil or contact is burned out, the motor won't get power in that direction even though the switch is working. Not all cars have a separate window relay, so check your wiring diagram before going down that path.

How do I know if the switch is the problem?

The fastest way to test the switch is with a multimeter or a 12V test light. Remove the switch panel from the door, unplug the connector, and check for continuity across the switch terminals when you press "up." If you get no continuity in the "up" position but you do get continuity in the "down" position, the switch is bad. Another quick trick: if you have a passenger window with its own switch that works normally, swap it with the suspect switch (if the connectors match) and see if the problem follows the switch.

Before you tear into the door, also try the master switch and the individual door switch. On most cars, you can roll the window up from either the master switch on the driver's door or the switch on the passenger door itself. If the window goes up from one switch but not the other, the dead switch is your problem.

Signs that point to the switch

Window works from one switch but not the other
Switch feels mushy, sticks, or requires extra force
Intermittent operation works sometimes, then stops
You hear no click or motor sound at all when pressing "up"
Other windows on the master switch work fine in both directions

How do I know if the relay is the problem?

If your vehicle has a window relay, it's usually located in the fuse box under the dash or under the hood. The relay diagram in your owner's manual or on the fuse box cover will tell you which one it is. To test it, pull the relay out and use a multimeter to check the coil resistance it should typically read between 50 and 120 ohms. You can also apply 12V directly to the coil pins and listen for a click, then check continuity across the output pins. If the relay clicks but the output pins don't show continuity, the internal contacts are burned.

A shortcut is to swap the suspect relay with another identical relay in the fuse box (like a horn relay or A/C relay of the same part number). If the window starts working, you've confirmed the relay is bad.

Relay failure symptoms

Multiple windows affected in the same direction (if they share a relay)
You hear the switch click but no motor sound
Swapping relays changes which window works
Visible burn marks or melted plastic on the relay

Could the window motor be the problem?

It's less common, but yes a motor can fail in one direction. Inside the motor are brushes and a commutator. If the commutator has a dead spot that only gets hit in the "up" rotation, the motor will spin down but stall going up. To test this, unplug the motor connector and apply 12V directly to the motor terminals, then reverse the polarity. If the motor spins in both directions with direct power, the motor is fine and the problem is upstream in the switch, relay, or wiring.

If the motor only spins one way with direct power, it's time to replace or rebuild it. For a deeper look at diagnosing the motor and regulator together, see our guide on how to diagnose a car window regulator when power windows roll down but won't roll up.

What about the wiring and ground?

Wiring problems can mimic a bad switch or relay. The window motor needs a good ground to run in both directions. A corroded ground point or a broken wire in the door hinge flex area (where the wire harness bends every time you open and close the door) can knock out one direction while leaving the other intact. Inspect the rubber boot between the door and the body pull it back and look for frayed, pinched, or broken wires.

Common wiring trouble spots

Door jamb flex harness (wires break from repeated bending)
Corroded connectors inside the door panel
Chafed wires rubbing against the door frame
Loose or corroded ground bolts

What's the right order to troubleshoot?

Start with the easiest checks and work your way deeper. Here's a logical sequence that most DIY mechanics follow:

Test both switches Try the master switch and the individual door switch. If neither works in the "up" direction, the switch alone probably isn't the issue (unless both share a common failure point).
Check the fuse Some cars have separate fuses for up and down circuits. A blown fuse for the "up" circuit is rare but possible.
Test the relay Swap it with a known good relay or bench-test it with a multimeter.
Check for voltage at the motor connector Use a test light or multimeter at the motor plug while pressing "up." If you see voltage but the motor doesn't spin, the motor is bad. If you see no voltage, the problem is in the switch, relay, or wiring.
Inspect the wiring Focus on the door jamb harness and connectors inside the door.
Test the motor directly Apply 12V to the motor in both polarities to confirm it spins both ways.

For a broader regulator diagnosis when the motor and switch both test fine, check out our breakdown of how to fix a car window that's stuck down and won't roll up.

Common mistakes people make during troubleshooting

Jump straight to replacing the motor Most of the time, the motor is fine. Testing it first with direct 12V power takes 30 seconds and saves you from buying a part you don't need.
Ignoring the relay Many DIYers don't even know their car has a window relay. It's a cheap part to test and replace.
Not checking both switches The master switch and the individual door switch can both fail. Test them separately.
Overlooking the door jamb wires Broken wires in the flex harness are one of the most common causes and one of the most often missed.
Forcing the window Pushing or pulling the glass manually while the mechanism is engaged can damage the regulator tracks or bend the glass.

Can I get the window up while I figure out the problem?

If you need to close the window right away say it's about to rain or you're parked in a bad area you can often pull the glass up by hand while pressing "up" on the switch to disengage the motor's hold. Some people remove the door panel and push the regulator arm by hand. If the motor is completely seized, you may need to unbolt the regulator from the glass and slide the window up manually, then wedge it in place temporarily. Our step-by-step for getting a stuck-open window closed is covered in this DIY window repair guide.

What does a switch or relay replacement usually cost?

A replacement window switch typically runs $15–$60 for most vehicles, depending on the brand and whether you buy OEM or aftermarket. A window relay is usually $5–$20. Both are easy DIY replacements no special tools needed beyond a trim pry tool and a screwdriver. Labor at a shop for a switch swap is usually under an hour, so even if you don't want to do it yourself, it's not an expensive job.

Where to find the right part

Use your vehicle's year, make, and model to search for the exact switch or relay. The part number is often stamped on the back of the old switch or the side of the relay. OEM parts from the dealer cost more but guarantee a perfect fit. Aftermarket options from brands like Dorman or Standard Motor Products are usually fine for switches and relays.

Quick troubleshooting checklist

Print this out or save it to your phone for your next garage session:

Try both the master switch and the individual door switch for the "up" position
Check the fuse for the window circuit (look in the owner's manual for the fuse location)
Swap or bench-test the window relay
Unplug the motor connector and test for 12V when pressing "up"
Apply 12V directly to the motor in both directions
Inspect the door jamb wiring harness for broken or frayed wires
Check ground connections inside the door
Replace the faulty component and test before reassembling the door panel

Tip: When you reassemble, test the window several times in both directions with the door panel still off. It's much easier to go back in and fix a loose connector before everything is snapped back together. If you've ruled out the switch, relay, and wiring and still can't find the issue, the regulator mechanism itself may be binding or broken in that case, follow our window regulator diagnosis guide to take the next step.