Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Honda Accord LXFACTORY OEM SERVICE PROCEDURE
External Pages
These are pages that do not belong to the exact selected vehicle (2021 Honda Accord EX-L), but are still accessible from a link in your vehicle's manual. Be very cautious using repair info from here because these pages may not apply to your vehicle.
- Different variant/trim
- Section 1 (Acoustic Vehicle Alerting Control Unit - DTC Diagnostics (Hybrid))
- Section 2 (Network Communication - Testing & Troubleshooting (Hybrid))
- Section 3 (Gauges - Service Information (Hybrid))
- Section 4 (Gauges - Testing & Troubleshooting (Hybrid))
- Section 5 (Can Gateway - DTC Diagnostics (Hybrid))
- Section 6 (Keyless Access Backup Control Unit - DTC Diagnostics (Hybrid))
- Section 7 (Engine Mechanical - Testing & Troubleshooting (Hybrid))
- Section 8 (VSA System - Service Information (Hybrid))
- Section 9 (Brake System - Diagnostics, Service, Testing & Troubleshooting (Hybrid))
- Section 10 (Engine Mechanical - Service Information (Hybrid))
- Section 11 (Brake System - Service Information (Hybrid))
- Section 12 (VSA System - Testing & Troubleshooting (Hybrid))
- Section 13 (Adaptive Damper System - Diagnostics (Hybrid))
- Section 14 (Electronic Power Steering (EPS) System - DTC Diagnostics (Hybrid))
- Section 15 (Supplemental Restraint System - Service Information (Hybrid))
- Section 16 (Suspension System - Testing & Troubleshooting (Hybrid))
- Section 17 (Suspension System - Service Information (Hybrid))
- Section 18 (Fuel And Emissions - Testing & Troubleshooting (Hybrid))
- Section 19 (Engine Control System - DTC Diagnostics (P2185 - U1205) (Hybrid))
- Section 20 (Electrical System - Service Information (Hybrid))
- Section 21 (Steering System - Testing & Troubleshooting (Hybrid))
- Section 22 (Supplemental Restraint System - Testing & Troubleshooting (Hybrid))
- Section 23 (Steering System / Radar System / IPU- Service Information (Hybrid))
- Section 24 (Electrical System - Testing & Troubleshooting (Hybrid))
- Section 25 (Audio-Navigation System - DTC Diagnostics (Hybrid))
- Section 26 (Audio System - Testing & Troubleshooting (Hybrid))
- Section 27 (Audio-Visual Systems - Service Information (Hybrid))
- Section 28 (Telematics System - Testing & Troubleshooting (Hybrid))
- Section 29 (ADAS System - Service Information (Hybrid))
- Section 30 (ADAS System - Testing & Troubleshooting (Hybrid))
- Section 31 (HVAC System - Testing & Troubleshooting (Hybrid))
- Section 32 (HVAC System - Service Information (Hybrid))
- Section 33 (Navigation System - Diagnostics - General Information (Hybrid))
- Section 34 (Navigation System - Testing & Troubleshooting (Hybrid))
- Section 35 (General Information (Hybrid))
- Section 36 (Doors - Service Information (Hybrid))
- Section 37 (Interior Trim - Service Information (Hybrid))
- Section 38 (Exterior Trim / Components - Service Information (Hybrid))
- Section 39 (Keyless Access System / Security System - Testing & Troubleshooting (Hybrid))
- Section 40 (Automatic Lighting System - DTC Diagnostics (Hybrid))
- Section 41 (Exterior Lighting - Service Information (Hybrid))
- Section 42 (Body Control Module - DTC Diagnostics (Hybrid))
- Section 43 (Exterior Lighting - Service, Testing And Troubleshooting (Hybrid))
- Section 44 (Integrated Control Systems - Testing & Troubleshooting (Hybrid))
- Section 45 (Integrated Control Systems - Service Information (Hybrid))
- Section 46 (Hybrid Transaxle - Testing & Troubleshooting (Hybrid))
- Section 47 (Hybrid Transaxle - Service Information (Hybrid))
- Section 48 (Exterior Trim / Defogger / Wiper System - Testing & Troubleshooting (Hybrid))
- Section 49 (Parking Brake System - Service Information (Hybrid))
- Section 50 (Driveshafts - Service Information (Hybrid))
- Section 51 (Ignition System - Testing & Troubleshooting (Hybrid))
- Section 52 (Engine Mount - Service Information (Hybrid))
- Section 53 (Exhaust System - Service Information (Hybrid))
- Section 54 (Frame - Service Information (Hybrid))
- Section 55 (Electric Powertrain - Testing & Troubleshooting (Hybrid))
- Section 56 (Battery Management System - Service Information (Hybrid))
- Section 57 (Battery Management System - Testing & Troubleshooting (Hybrid))
- Section 58 (VSA System - DTC Diagnostics (P0BCD - U3006) (Hybrid))
- Section 59 (Electric Powertrain - Service Information (Hybrid))
- Section 60 (Battery Management System - DTC Diagnostics (Hybrid))
- Section 61 (Engine Cooling System - Testing & Troubleshooting (Hybrid))
- Section 62 (Supplemental Restraint System (SRS) - DTC Diagnostics (B0001 - B0052) (Hybrid))
- Section 63 (Blind Spot Information System - DTC Diagnostics (Hybrid))
- Section 64 (Mirrors - Service Information (Hybrid))
- Section 65 (Electric Servo Brake System - DTC Diagnostics (Hybrid))
- Section 66 (Electric Parking Brake - Diagnostics Introduction (Hybrid))
- Section 67 (Parking Brake System - Testing & Troubleshooting (Hybrid))
- Section 68 (Cruise Control System - Testing & Troubleshooting (Hybrid))
- Section 69 (Can Gateway Advanced Diagnostics (Hybrid))
- Section 70 (Network Communication - Service Information (Hybrid))
- Section 71 (Cruise Control System - DTC Diagnostics (Hybrid))
- Section 72 (Driving Assistance Warning System - Testing & Troubleshooting (Hybrid))
- Section 73 (Cruise Control System - Service Information (Hybrid))
- Section 74 (Doors / Glass - Adjustment (Hybrid))
- Section 75 (Windows / Glass - Testing & Troubleshooting (Hybrid))
- Section 76 (Driveshafts - Inspection (Hybrid))
- Section 77 (VSA System - DTC Diagnostics (B0050 - P0BCC) (Hybrid))
- Section 78 (Engine Control System - Advanced Diagnostics (P0010 - P0841) (Hybrid))
- Section 79 (Engine Control System - Advanced Diagnostics (P0842 - U1605) (Hybrid))
- Section 80 (Engine Control System - DTC Diagnostics (P0011 - P027F) (Hybrid))
- Section 81 (Engine Control System - DTC Diagnostics (P0300 - P0751) (Hybrid))
- Section 82 (Engine Control System - DTC Diagnostics (P0752 - P2184) (Hybrid))
- Section 83 (Cylinder Head Assembly - Overhaul (Hybrid))
- Section 84 (Fuel And Emissions - Service Information (Hybrid))
- Section 85 (Engine Cooling System - Service Information (Hybrid))
- Section 86 (Lubrication System - Testing & Troubleshooting (Hybrid))
- Section 87 (Lubrication System - Service Information (Hybrid))
- Section 88 (Cylinder Head Assembly - Components Location (Hybrid))
- Section 89 (Exhaust System - Component Location (Hybrid))
- Section 90 (Windows / Glass - Service Information (Hybrid))
- Section 91 (Seats - Service Information (Hybrid))
- Section 92 (Interior Lighting - Service Information (Hybrid))
- Section 93 (Gauge Control System - DTC Diagnostics (Hybrid))
- Section 94 (Interior Lighting - Gen Info (Hybrid))
- Section 95 (TPMS System - Testing & Troubleshooting (Hybrid))
- Section 96 (Mirrors - Testing & Troubleshooting (Hybrid))
- Section 97 (Moonroof - Testing & Troubleshooting (Hybrid))
- Section 98 (HANDSFREELINK System - Testing & Troubleshooting (Hybrid))
- Section 99 (Seats - Testing & Troubleshooting (Hybrid))
- Section 100 (VSA TPMS Control Unit - DTC Diagnostics (Hybrid))
- Section 101 (HANDSFREELINK System - DTC Diagnostics (Hybrid))
- Section 102 (Head Up Display - DTC Diagnostics (Hybrid))
- Section 103 (HVAC System - DTC Diagnostics (Hybrid))
- Section 104 (Moonroof - Service Information (Hybrid))
- Section 105 (Interior Trim - Components Location (Hybrid))
- Section 106 (Seat Belts - Service Information (Hybrid))
- Section 107 (Security System / Keyless Entry System - Service Information (Hybrid))
- Section 108 (Keyless Access Control Unit - DTC Diagnostics (Hybrid))
- Section 109 (Keyless Access Power Control Unit - DTC Diagnostics (Hybrid))
- Section 110 (Multiplex Integrated Control Unit (Door) - DTC Diagnostics (Hybrid))
- Section 111 (Seat Heater System (Front) - DTC Diagnostics (Hybrid))
- Section 112 (Parking Or Back-Up System - DTC Diagnostics (Hybrid))
- Section 113 (Power Seat System - DTC Diagnostics (Hybrid))
- Section 114 (Relay Control System - DTC Diagnostics (Hybrid))
- Section 115 (Wireless Charger - DTC Diagnostics (Hybrid))
- Section 116 (Seat Belts - Inspection (Hybrid))
- Section 117 (Supplemental Restraint System (SRS) - DTC Diagnostics (B0052 - U3000) (Hybrid))
- Section 118 (Telematics Control System - DTC Diagnostics (Hybrid))
- Section 119 (VSA System - Advanced Diagnostics (Hybrid))
- Different car
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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