Safety note: Troubleshooting guidance can help you narrow down likely causes, but it cannot replace an in-person inspection. If the vehicle feels unsafe, warning lights are flashing, you smell fuel, see smoke, notice overheating, or have problems with braking, steering, or control, stop driving when it is safe to do so and have the vehicle inspected.
If the rear wiper stopped working but the front wipers still do, the problem is usually isolated to the rear wiper circuit or hardware rather than the vehicle's entire wiper system. That is good news, because it narrows the likely causes quite a bit.
In many vehicles, the rear wiper has its own fuse path, motor, wiring through the liftgate, and sometimes its own control logic. A failed rear motor, broken hatch wiring, seized wiper pivot, bad switch input, or even a liftgate-ajar issue can leave the back wiper dead while the front pair keep working normally.
The best clues are what the rear wiper does when you turn it on. If it is completely silent, think power, control, or wiring. If you hear the motor but the arm does not move, think linkage, pivot, or a stripped arm. The fix can be minor, but some causes require electrical testing or liftgate trim removal.
VehicleRuns Quick Diagnosis
Rear Wiper Not Working
Start by noting whether the rear wiper is completely dead or whether you can hear the motor trying to run. Also check whether the liftgate is fully latched and whether the washer still works at the rear.
| What you notice | Most likely cause | What to check first | Urgency |
|---|---|---|---|
| No sound and no rear washer response | Fuse or power supply fault | Check the rear wiper fuse and related power feed | Diagnose soon |
| No sound, but rear washer still sprays | Rear wiper motor fault | Test for power and ground at the rear motor | Diagnose soon |
| Motor hums but arm does not move | Seized pivot or stripped arm | Inspect the arm nut, shaft, and pivot for binding | Can worsen |
| Works sometimes when hatch moves | Broken liftgate wiring | Inspect the rubber boot wiring at the hatch hinge | Can worsen |
| Rear wiper stopped after hatch or glass issue | Liftgate latch or interlock fault | Confirm the hatch and glass show fully closed | Diagnose soon |
| Rear wiper and other hatch functions act strange | Ground or wiring fault | Check hatch ground, connectors, and shared circuits | Can worsen |
Best first move: Verify the hatch is fully latched, then check whether the motor is silent or trying to move, because that split usually tells you whether to chase power or a mechanical bind.
Safety note: This usually is not a stop-driving problem, but do not force a stuck rear wiper or keep the switch on if the motor is humming and the arm is jammed, because the motor or fuse can overheat.
Most Common Causes of a Rear Wiper That Stops Working
On most vehicles, a rear wiper that quits while the front wipers still work comes down to a short list of rear-specific faults. The three causes below are the most common, and a fuller list appears later in the article.
- Failed Rear Wiper Motor: The rear motor can fail internally even when the front wiper system works normally, leaving the rear wiper silent or only intermittently functional.
- Broken Liftgate Wiring: The wiring that flexes every time the hatch opens and closes is a common failure point and can cut power or ground to the rear wiper.
- Seized Rear Wiper Pivot: A corroded pivot or stripped arm connection can keep the wiper from moving even if the motor is still trying to run.
What a Rear Wiper That Does Not Work Usually Means
When the front wipers work but the rear one does not, the fault is usually downstream of the main wiper power supply. In plain terms, that means the problem is more likely in the rear motor, rear wiring, rear fuse path, switch input, or liftgate hardware than in the whole vehicle electrical system.
The most useful first split is silent versus trying to move. A completely silent rear wiper often points to a blown fuse, lost power, broken hatch wiring, a bad ground, or a control issue. A humming or clicking motor with no arm movement points more toward a seized pivot, a loose or stripped arm, or internal gear damage in the motor assembly.
It also helps to notice whether other liftgate features are acting up. If the rear defroster, hatch release, license plate lights, or rear washer also behave oddly, a shared wiring or ground problem becomes more likely. If every other rear hatch function works and only the wiper is dead, the motor or pivot moves higher on the suspect list.
Some vehicles also disable the rear wiper if the hatch or flip-up rear glass is not fully latched. That can make the problem look like a motor failure when the real cause is a latch switch, glass-ajar input, or harness issue near the liftgate.
Possible Causes of a Rear Wiper Not Working While the Front Wipers Do
Failed Rear Wiper Motor
Rear wiper motors commonly fail from age, moisture intrusion, worn internal brushes, or stripped internal gears. Because the rear wiper is its own small motor assembly, it can quit while the front wipers continue to work normally.
Symptoms to Watch For
- Rear wiper is completely silent when switched on
- Rear washer works but the arm never moves
- Wiper worked intermittently before failing completely
- Motor area may click once but not cycle
Moderate Severity
The vehicle is usually still drivable, but rear visibility in rain, snow, or road spray can be reduced and the problem rarely fixes itself.
How to Confirm: Remove the interior hatch trim enough to access the motor connector, then check for battery voltage and a solid ground at the motor while the rear wiper switch is commanded on.
Typical fix: Replace the rear wiper motor assembly and reinstall or replace the wiper arm if needed.
Broken Liftgate Wiring
The wiring harness passing through the rubber boot between the body and liftgate flexes constantly. Over time, one or more wires can break internally, cutting power, ground, or signal to the rear wiper even though the front wipers still operate.
Symptoms to Watch For
- Rear wiper works only when the hatch is in certain positions
- Other hatch features act up intermittently
- Rear defroster, lock, or plate lights may also be affected
- Problem may be worse in cold weather
Moderate to High Severity
This often worsens over time and can affect multiple liftgate circuits, not just the rear wiper.
How to Confirm: Pull back the rubber harness boot at the hatch hinge area and inspect for cracked insulation, stretched wires, or broken conductors.
Typical fix: Repair or splice the damaged wires, restore the harness length and flexibility, and secure the boot correctly.
Seized Rear Wiper Pivot
The shaft the rear wiper arm mounts to can corrode and seize in the housing, especially on vehicles exposed to weather year-round. When that happens, the motor may still try to turn but the arm stays stuck or moves very slowly.
Symptoms to Watch For
- Motor hums or clicks but the arm does not sweep
- Rear wiper moved slowly before stopping
- Arm feels very stiff by hand with the key off
- Fuse may blow again after replacement if the motor is overloaded
Moderate to High Severity
A seized pivot can overload and burn out the motor or repeatedly blow the fuse if ignored.
How to Confirm: Remove the wiper arm and check whether the pivot shaft turns freely by hand or with the motor disconnected.
Typical fix: Free or replace the seized pivot assembly, then replace the motor if it was damaged by the overload.
Blown Fuse, Bad Relay, or Power Supply Problem
Many vehicles protect the rear wiper on a separate fuse or control feed. A blown fuse, failed relay where used, or loss of rear wiper power can leave the rear wiper dead while the front system continues to function.
Symptoms to Watch For
- Rear wiper stopped suddenly with no warning
- No motor noise at all
- Rear washer or related rear circuits may also stop
- New fuse may blow immediately if there is a short or seized motor
Moderate Severity
This is usually not dangerous by itself, but a repeated blown fuse often means an underlying short or overloaded motor that should not be ignored.
How to Confirm: Use the fuse chart to identify the rear wiper fuse and test it with a meter or test light, not just by sight.
Typical fix: Replace the failed fuse or relay and repair the underlying short, overload, or feed problem.
Wiring, Connector, or Electrical Ground Fault
Even if the hinge-area wires are intact, corrosion at a connector, a loose terminal, or a weak hatch ground can interrupt current flow to the rear motor. The result may be a dead, weak, or intermittent rear wiper.
Symptoms to Watch For
- Rear wiper is intermittent without a clear pattern
- Other rear hatch electronics behave oddly
- Moisture or corrosion is visible at connectors
- Voltage is present at the motor but weak under load
Moderate Severity
Electrical resistance problems tend to get worse over time and can lead to repeated intermittent faults that are harder to trace later.
How to Confirm: Perform a loaded voltage test at the motor connector with the rear wiper commanded on, then do a voltage drop test on both the power and ground sides.
Typical fix: Clean or replace the affected connector, repair the damaged wiring, and restore the ground connection.
Rear Wiper Switch or Control Module Fault
The rear wiper command may come from a stalk switch, a dedicated dash switch, or a body control module. If that command never reaches the rear circuit, the rear wiper can stay inoperative even though the front wipers still respond normally.
Symptoms to Watch For
- Rear wiper has no response but power and ground paths test good
- Other switch-controlled functions may act oddly
- Scan tool may show missing rear wiper command
- Problem may start after battery service or module issues
Moderate Severity
This usually does not create an immediate safety hazard, but it can leave rear visibility poor in bad weather and often requires proper electrical diagnosis.
How to Confirm: Use a scan tool, wiring diagram, or switch output test to verify whether the rear wiper command is being sent when the switch is operated.
Typical fix: Replace the faulty switch, repair the command circuit, or reprogram or replace the affected control module if required.
Liftgate Latch or Glass-Ajar Interlock Fault
On some hatchbacks, wagons, and SUVs, the rear wiper is disabled unless the liftgate and rear glass are fully latched. A faulty latch switch or glass-ajar input can fool the system into thinking the hatch is open.
Symptoms to Watch For
- Rear wiper quit after hatch or rear glass trouble
- Door-ajar message may appear intermittently
- Rear wiper may start working if the hatch is slammed shut
- Rear washer or defroster logic may also be affected
Low Severity
This usually is not mechanically dangerous, but it can be annoying and can reduce visibility in weather until repaired.
How to Confirm: Check whether the vehicle shows the hatch or glass as open on the dash or scan data, and verify latch switch status while opening and closing the liftgate.
Typical fix: Adjust or replace the liftgate latch or switch, or repair the interlock circuit so the module sees the hatch as fully closed.
How to Diagnose the Problem
- Confirm the symptom by trying the rear wiper with the ignition in the normal run position and the hatch fully closed.
- Check whether the rear washer works, because that helps separate a full rear power issue from a motor-only problem.
- Listen closely at the rear hatch when the switch is turned on. Silence points toward power, control, or wiring. A hum or click points toward a jammed pivot, stripped arm, or weak motor.
- Inspect the rear wiper arm and retaining nut for looseness, stripped splines, or obvious binding around the pivot shaft.
- Verify the liftgate and any flip-up rear glass are fully latched, and look for any hatch-ajar warning on the dash.
- Check the rear wiper fuse and any related relay using a test light or multimeter rather than relying only on a visual fuse check.
- If the fuse is blown, do not keep replacing it without finding the cause. A seized pivot or shorted motor can blow it again immediately.
- Pull back the rubber wiring boot between the body and hatch and inspect for broken, cracked, or stretched wires.
- Access the rear motor connector and test for power and ground while commanding the rear wiper on.
- If power and ground are good but the motor does not run, replace the motor or address a seized pivot before the new motor is installed.
Can You Keep Driving If the Rear Wiper Does Not Work?
Important: The guidance below is general and cannot confirm that your specific vehicle is safe to drive. If a symptom affects braking, steering, handling, fuel, overheating, smoke, visibility, or vehicle control, treat it as potentially serious and have the vehicle inspected before continued driving when appropriate. For more context, see our Automotive Safety Disclaimer.
In most cases, a rear wiper that does not work is not a reason to park the vehicle immediately. The real question is whether weather or cargo conditions make rear visibility important right now, and whether the failed wiper is electrically or mechanically binding.
Okay to Keep Driving for Now
Usually okay in dry weather if the rear window is still reasonably clear and there are no blown-fuse symptoms affecting other circuits. This is often the case with a dead motor or bad latch input.
Maybe Okay for a Very Short Distance
Maybe okay for a short trip to diagnose or repair if rear visibility is poor from rain, snow, or road spray, or if the rear wiper only works intermittently. Use extra caution when backing up or changing lanes.
Not Safe to Keep Driving
Do not keep driving if the failed rear wiper is part of a broader electrical issue, if fuses keep blowing, if you smell hot wiring, or if a jammed rear wiper motor is overheating or smoking. Also avoid driving in heavy weather if you cannot see safely out the rear.
How to Fix It
The correct fix depends on whether the rear wiper is not getting a command, not getting power, or is physically jammed. Start with the easy pattern checks, then move to electrical testing or hatch trim removal only as needed.
DIY-friendly Checks
Verify the hatch is fully latched, inspect the rear arm for looseness, check the fuse, and look closely at the hinge-area wiring boot for cracked or broken wires. These are the most common no-special-tools starting points.
Common Shop Fixes
A repair shop will commonly replace a failed rear wiper motor, repair broken hatch wiring, clean or replace corroded connectors, or free and replace a seized rear pivot assembly.
Higher-skill Repairs
More advanced repairs include tracing command circuits with a wiring diagram, diagnosing a body control module or switch fault, and correcting interlock problems tied to liftgate latch or rear glass status inputs.
Related Repair Guides
- Signs Your Car Battery Is Bad
- Car Battery Repair vs Replacement: What’s the Better Option?
- AGM vs EFB Batteries: What’s the Difference?
- Lithium vs Lead-Acid Car Batteries: Which Should You Choose?
- AGM vs Lead-Acid Car Batteries: Which Is Better?
Typical Repair Costs
Repair cost depends on the vehicle, how the rear wiper system is controlled, and whether the problem is a simple fuse, a motor failure, or a wiring fault in the liftgate. The ranges below are typical U.S. parts-and-labor estimates and can vary by shop rate and access difficulty.
Rear Wiper Fuse or Relay Replacement
Typical cost: $20 to $120
This usually applies when the fault is limited to a fuse or an easily accessed relay and no deeper short is present.
Rear Wiper Motor Replacement
Typical cost: $180 to $450
This is common when power and ground reach the motor but it will not run or has failed internally.
Liftgate Wiring Repair
Typical cost: $150 to $400
Cost depends on how many wires are broken, how accessible the harness is, and whether a proper harness repair is needed instead of a quick splice.
Rear Wiper Pivot or Arm Repair
Typical cost: $120 to $350
This range fits a seized pivot, stripped arm splines, or linkage hardware issues that keep the arm from moving normally.
Switch or Control Circuit Diagnosis and Repair
Typical cost: $150 to $500
This is typical when the problem requires circuit tracing, switch replacement, or body control module input testing.
Liftgate Latch or Interlock Switch Repair
Typical cost: $140 to $380
This cost usually applies when the rear wiper is being disabled because the hatch or rear glass is not being recognized as closed.
What Affects Cost?
- Whether the fault is electrical, mechanical, or both
- How much hatch trim or interior access is required
- Labor rates in your area
- OEM versus aftermarket motor or switch parts
- Whether wiring damage affects multiple hatch circuits
Cost Takeaway
If the rear wiper is silent and a fuse or hatch-wire problem is found quickly, the repair often stays in the lower to middle cost range. If the motor is bad, the job is usually moderate. Costs climb when the fault is intermittent, buried in the liftgate harness, or tied to control-module logic or latch-status inputs.
Symptoms That Can Look Similar
- Door Locks Cycle by Themselves: Common Causes and What to Check
- Wipers Only Work on One Speed: Common Causes and What to Check
- Wipers Park in the Middle of Windshield: Common Causes and What to Check
- Wipers Stop Randomly While Driving: Common Causes and What to Check
- Windshield Wiper Won’t Turn Off: Common Causes and What to Check
Parts and Tools
FAQ
Why Would Only the Rear Wiper Stop Working?
Because the rear wiper usually has its own motor, wiring, and sometimes its own fuse or control path. A problem in that rear-specific circuit can disable the back wiper while the front wipers still work normally.
If I Hear the Rear Wiper Motor, Why Is the Arm Not Moving?
That usually points to a seized pivot, stripped wiper arm splines, or internal gear damage in the motor assembly. The motor is trying to work, but the motion is not reaching the arm properly.
Can a Bad Hatch Wire Cause the Rear Wiper to Work Sometimes?
Yes. Broken or cracked wires in the liftgate boot often make the rear wiper intermittent, especially when the hatch is opened, closed, or moved slightly.
Does a Blown Fuse Mean the Rear Wiper Motor Is Bad?
Not always. A blown fuse can come from a shorted wire, a seized pivot that overloads the motor, or a failed motor drawing too much current. The fuse is a clue, not the final diagnosis.
Can the Rear Wiper Stop Working if the Hatch Is Not Fully Closed?
Yes, on many vehicles the rear wiper is disabled if the liftgate or rear glass is open or if the latch switch falsely reports that it is open. That is worth checking before replacing parts.
Final Thoughts
When the front wipers still work, treat the rear wiper as a separate rear-circuit problem first. The key split is simple: if the rear is silent, chase fuse, wiring, power, ground, and switch inputs; if it hums or clicks, look hard at the motor, pivot, and arm.
Start with the visible and common failures before assuming a module problem. A bad rear motor, broken liftgate wiring, or a seized pivot explains most cases, and the urgency mostly depends on weather, visibility, and whether the fault is also affecting other hatch electronics.