← View Generic C3621 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
C3621: C3621: Rear Suspension Strut Friction Bushing Fault
on 2021 Honda PASSPORT
Fix Cost
$150 - $300
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2021 Honda
PASSPORT
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Important for 2021 Honda PASSPORT Owners
Before starting repairs, verify which engine your 2021 Honda PASSPORT has. Check your VIN or engine code to ensure you order the correct parts.
📖 What Does C3621 Mean on 2021 Honda PASSPORT?
The C3621 code indicates a fault in the rear suspension strut friction bushing, which can cause uneven tire wear, vibrations, and reduced handling.
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Symptoms
- • Uneven tire wear
- • vibrations
- • reduced handling
- • clunking or rattling noises from the rear suspension
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Common Causes
- • Worn or damaged rear suspension strut friction bushing
- • loose or worn-out suspension components
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How to Fix C3621 on 2021 Honda PASSPORT
Replace the rear suspension strut friction bushing, inspect and replace any loose or worn-out suspension components
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Need Maintenance Info for Your PASSPORT?
Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.
View 2021 Honda PASSPORT SpecsParts for 2021 Honda PASSPORT
Essential Tool
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Related Diagnostic Codes
Other codes that may appear with C3621
C3619
Sequential Code
C3619: ABS System Malfunction
Medium
C3620
Sequential Code
C3620: Brake System Pressure Sensor Circuit Malfunction
Medium
C3622
Sequential Code
C3622: Steering Column Position Sensor Circuit Malfunction
Medium
C3623
Sequential Code
C3623: Electronic Stability Control (ESC) Malfunction
Medium
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system