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.
2018 Toyota Avalon LimitedFACTORY OEM SERVICE PROCEDURE
External Pages
These are pages that do not belong to the exact selected vehicle (2018 Toyota Avalon Limited), 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 (Hybrid Control System - Diagnostic Codes - (Hybrid) (3 Of 8))
- Section 2 (Hybrid Control System - Diagnostic Codes - (Hybrid) (4 Of 8))
- Section 3 (Hybrid Battery Control System (Service Information) (Hybrid))
- Section 4 (Hybrid Control System - Diagnostics - Introduction - (Hybrid))
- Section 5 (Hybrid Battery System - Diagnostics - Introduction - (Hybrid))
- Section 6 (Hybrid Control System (Inspection) (Hybrid))
- Section 7 (Introduction - General Information (Hybrid))
- Section 8 (Hybrid Transaxle (P314) - Service Information - (Hybrid))
- Section 9 (Can Communication System (W/ Central Gateway Ecu) - Inspection - (Hybrid))
- Section 10 (Can Communication System (W/O Central Gateway Ecu) - Inspection - (Hybrid))
- Section 11 (Engine Control System (Service Information) (Hybrid))
- Section 12 (SFI System - Diagnostics - Introduction - (Hybrid) (2 Of 2))
- Section 13 (Air Conditioning System (Service Information) (Hybrid))
- Section 14 (Hybrid Battery System - Diagnostic Codes - (Hybrid))
- Section 15 (Supplemental Restraint System - Diagnostics - Introduction - (Hybrid))
- Section 16 (Supplemental Restraint System (Service Information) (Hybrid))
- Section 17 (Air Conditioning System - Diagnostics - Introduction - (Hybrid))
- Section 18 (Engine Mechanical (Service Information) (Hybrid))
- Section 19 (SFI System - Diagnostic Codes - (Hybrid) (2 Of 4))
- Section 20 (Emission Control System (Service Information) (Hybrid))
- Section 21 (Theft Deterrent System / Keyless Entry System (Service Information) (Hybrid))
- Section 22 (Engine Cooling Fan System - Diagnostics & Circuit Tests - (Hybrid))
- Section 23 (Meter / Gauge System - Diagnostics - Introduction - (Hybrid))
- Section 24 (Meter / Gauge /System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 25 (Seat Belt Warning System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 26 (Combination Meter (Service Information) (Hybrid))
- Section 27 (Power Distribution (Service Information) (Hybrid))
- Section 28 (Lighting System - Diagnostics - Introduction - (Hybrid))
- Section 29 (Automatic High Beam System - Diagnostics - Introduction - (Hybrid))
- Section 30 (Meter / Gauge / Display (Inspection) (Hybrid))
- Section 31 (Lighting System (Ext) - Service Information - (Hybrid))
- Section 32 (Electronically Controlled Brake System - Diagnostic Codes (2 Of 2) & Symptom Tests - (Hybrid))
- Section 33 (Brake System (Hydraulic) - Service Information - (Hybrid))
- Section 34 (SFI System - Diagnostic Codes & Circuit Tests - (Hybrid) (4 Of 4))
- Section 35 (Engine Lubrication System (Service Information) (Hybrid))
- Section 36 (Pre-Collision System - Diagnostics - Introduction - (Hybrid))
- Section 37 (Cruise Control System (Service Information) (Hybrid))
- Section 38 (Power Steering System - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 39 (Power Steering Ecu (Service Information) (Hybrid))
- Section 40 (Supplemental Restraint System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 41 (Charging System (Inspection) (Hybrid))
- Section 42 (Tire Pressure Warning System - Diagnostics - Introduction - (Hybrid))
- Section 43 (Fuel System (Service Information) (Hybrid))
- Section 44 (Dynamic Radar Cruise Control System - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 45 (Cruise Control System - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 46 (Dynamic Radar Cruise Control System - Diagnostics - Introduction - (Hybrid))
- Section 47 (Smart Key System (Entry) - Diagnostics - Introduction - (Hybrid))
- Section 48 (Electronically Controlled Brake System - Diagnostics - Introduction - (Hybrid))
- Section 49 (Power Steering System - Diagnostics - Introduction - (Hybrid))
- Section 50 (SFI System - Diagnostics - Introduction - (Hybrid) (1 Of 2))
- Section 51 (Blind Spot Monitor System - Diagnostics - Introduction - (Hybrid))
- Section 52 (Park Assist & Monitoring System (Service Information) (Hybrid))
- Section 53 (Cruise Control System - Diagnostics - Introduction - (Hybrid))
- Section 54 (Sliding Roof System - Diagnostics - Introduction - (Hybrid))
- Section 55 (Smart Key System (Start) - Diagnostics - Introduction - (Hybrid))
- Section 56 (Steering Lock System - Diagnostics - Introduction - (Hybrid))
- Section 57 (Automatic Headlight Beam Level Control System - Diagnostics - Introduction - (Hybrid))
- Section 58 (Wiper System / Washer System (Service Information) (Hybrid))
- Section 59 (Immobiliser System - Diagnostics - Introduction - (Hybrid))
- Section 60 (Steering Column (Service Information) (Hybrid))
- Section 61 (Lane Departure Alert System (W/ Steering Control) - Diagnostics - Introduction - (Hybrid))
- Section 62 (Hybrid Control System - Diagnostic Codes (8 Of 8) - Symptom & Circuit Tests - (Hybrid))
- Section 63 (Can Communication System (W/O Central Gateway Ecu) - Diagnostics - Introduction - (Hybrid))
- Section 64 (Lin Communication System - Diagnostics - Introduction - (Hybrid))
- Section 65 (Can Communication System (W/ Central Gateway Ecu) - Diagnostics - Introduction - (Hybrid))
- Section 66 (Smart Key System (Start) - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 67 (Hybrid Control System - Diagnostic Codes - (Hybrid) (2 Of 8))
- Section 68 (Hybrid Control System - Diagnostic Codes - (Hybrid) (6 Of 8))
- Section 69 (Hybrid Control System - Diagnostic Codes - (Hybrid) (1 Of 8))
- Section 70 (Hybrid Control System - Diagnostic Codes - (Hybrid) (7 Of 8))
- Section 71 (Hybrid Control System - Diagnostic Codes - (Hybrid) (5 Of 8))
- Section 72 (Interior Panels / Trim (Service Information) (Hybrid))
- Section 73 (Lighting System (Int) - Service Information - (Hybrid))
- Section 74 (Audio / Video System (Service Information) (Hybrid))
- Section 75 (Navigation System (Service Information) (Hybrid))
- Section 76 (Power Outlets (Interior) - Service Information - (Hybrid))
- Section 77 (Seats (Service Information) (Hybrid))
- Section 78 (Seat Belts (Service Information) (Hybrid))
- Section 79 (Inner Rear View Mirror (Service Information) (Hybrid))
- Section 80 (Supplemental Restraint System - Diagnostic Codes - (Hybrid))
- Section 81 (Seat Heater System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 82 (Seat Heater System - Diagnostics - Introduction - (Hybrid))
- Section 83 (Standard Bolt (General Information) (Hybrid))
- Section 84 (Engine Cooling System (Service Information) (Hybrid))
- Section 85 (Engine Cooling System (Inspection) (Hybrid))
- Section 86 (Intake / Exhaust System (Service Information) (Hybrid))
- Section 87 (Can Communication System (W/ Central Gateway Ecu) - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 88 (Power Seat Switch (W/ Memory) - Service Information - (Hybrid))
- Section 89 (Mirror (Ext) - Service Information - (Hybrid))
- Section 90 (Electronically Controlled Brake System - Diagnostic Codes (1 Of 2) - (Hybrid))
- Section 91 (Network Gateway Ecu (Service Information) (Hybrid))
- Section 92 (Brake Control System (Service Information) (Hybrid))
- Section 93 (Lighting System - Diagnostics & Circuit Tests - (Hybrid))
- Section 94 (Air Conditioning System - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 95 (Lin Communication System - Diagnostic Codes - (Hybrid))
- Section 96 (Charging System (Service Information) (Hybrid))
- Section 97 (Sliding Roof System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 98 (Sliding Roof (Service Information) (Hybrid))
- Section 99 (Brake System (Front) - Service Information - (Hybrid))
- Section 100 (Brake System (Rear) - Service Information - (Hybrid))
- Section 101 (Front Drive Shaft Assembly (Service Information) (Hybrid))
- Section 102 (Brake System (Inspection) (Hybrid))
- Section 103 (Wheel Alignment (Service Specifications) (Hybrid))
- Section 104 ((Door / Hatch) (Service Information) (Hybrid))
- Section 105 (Audio And Visual System - Diagnostics - Introduction - (Hybrid))
- Section 106 (Safety Connect System - Diagnostics - Introduction - (Hybrid))
- Section 107 (Audio And Visual System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 108 (Cellular Communication System (Service Information) (Hybrid))
- Section 109 (Rear View Monitor System - Diagnostics - Introduction - (Hybrid))
- Section 110 (Vehicle Approaching Speaker (Service Information) (Hybrid))
- Section 111 (Exterior Panels / Trim (Service Information) (Hybrid))
- Section 112 (Tires / Wheel System (Inspection) (Hybrid))
- Section 113 (SFI System - Diagnostic Codes - (Hybrid) (1 Of 4))
- Section 114 (Engine Intake System (Inspection) (Hybrid))
- Section 115 (SFI System - Diagnostic Codes - (Hybrid) (3 Of 4))
- Section 116 (Fuel System (Inspection) (Hybrid))
- Section 117 (Ignition System (Inspection) (Hybrid))
- Section 118 (Occupant Classification System - Diagnostics - Introduction - (Hybrid))
- Section 119 (Occupant Classification System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 120 (Power Switch (Service Information) (Hybrid))
- Section 121 (Door Lock System (Service Information) (Hybrid))
- Section 122 (Forward Recognition Camera System - Diagnostics - Introduction - (Hybrid))
- Section 123 (Forward Recognition Camera System - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 124 (Vehicle Proximity Notification System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 125 (Parking Brake (Inspection) (Hybrid))
- Section 126 (Parking Brake (Service Information) (Hybrid))
- Section 127 (Front Power Seat Control System (W/ Memory) - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 128 (Front Power Seat Control System (W/ Memory) - Diagnostics - Introduction - (Hybrid))
- Section 129 (Power Door Lock Control System - Diagnostics & Symptom Tests - (Hybrid))
- Section 130 (Wireless Door Lock Control System - Diagnostics - Introduction - (Hybrid))
- Section 131 (Power Mirror Control System (W/ Memory) - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 132 (Rear Sunshade System - Diagnostics & Symptom Tests - (Hybrid))
- Section 133 (Parking Assist Monitor System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 134 (Can Communication System (W/O Central Gateway Ecu) - Diagnostics & Circuit Tests - (Hybrid))
- Section 135 (Can Communication System (W/O Central Gateway Ecu) - Diagnostic Codes - (Hybrid))
- Section 136 (Front Power Seat Control System (W/O Memory) - Inspection - (Hybrid))
- Section 137 (Rear Suspension (Service Information) (Hybrid))
- Section 138 (Axles (Service Information) (Hybrid))
- Section 139 (Steering System (Inspection) (Hybrid))
- Section 140 (Steering Gear (Service Information) (Hybrid))
- Section 141 (Front Suspension (Service Information) (Hybrid))
- Section 142 (Navigation System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 143 (Navigation System - Diagnostics - Introduction - (Hybrid))
- Section 144 (Safety Connect System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 145 (Smart Key System (Entry) - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 146 (Smart Key System (Entry) - Symptom Tests - (Hybrid))
- Section 147 (Fuel Lid Opener System (Inspection) (Hybrid))
- Section 148 (Blind Spot Monitor System - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 149 (Window Defogger System - Diagnostics & Symptom Tests - (Hybrid))
- Section 150 (Power Seat Switch (W/O Memory) - Service Information - (Hybrid))
- Section 151 (Wireless Door Lock Control System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 152 (Lighting System - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 153 (Clock System (Inspection) (Hybrid))
- Section 154 (Steering Lock System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 155 (Vehicle Proximity Notification System - Diagnostics - Introduction - (Hybrid))
- Section 156 (Immobiliser System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 157 (Tire Pressure Warning System (Service Information) (Hybrid))
- Section 158 (Lane Departure Alert System (W/ Steering Control) - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 159 (Automatic High Beam System - Diagnostic Codes - (Hybrid))
- Section 160 (Automatic Headlight Beam Level Control System - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 161 (Rear View Monitor System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 162 (Pre-Collision System - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 163 (Remote Engine Starter System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 164 (Tire Pressure Warning System - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 165 (Power Window Control System - Diagnostic Codes & Symptom Tests - (Hybrid))
- Section 166 (Parking Assist Monitor System - Diagnostics - Introduction - (Hybrid))
- Section 167 (Power Window Control System - Diagnostics - Introduction - (Hybrid))
- Section 168 (Garage Door Opener (Inspection & Registration) - (Hybrid))
- Section 169 (Engine Lubrication System (Inspection) (Hybrid))
- Section 170 (Horn (Inspection) (Hybrid))
- Section 171 (Horn (Service Information) (Hybrid))
- Section 172 (Pre-Collision System Warning Buzzer (Service Information) (Hybrid))
- Section 173 (Wiper System / Washer System - Diagnostic Codes & Circuit Tests - (Hybrid))
- Section 174 (Windows / Glass (Service Information) (Hybrid))
- Section 175 (Luggage Compartment Door Opener System - Diagnostics & Symptom Tests - (Hybrid))
- Section 176 (Can Communication System (W/ Central Gateway Ecu) - Circuit Tests - (Hybrid))
- Section 177 (Pre-Collision System Cancel Switch (Service Information) (Hybrid))
- Section 178 (Remote Engine Starter System - Diagnostics - Introduction - (Hybrid))
- Section 179 (Theft Deterrent System - Diagnostics & Circuit Tests - (Hybrid))
- Section 180 (Wireless Charging System - Diagnostics & Circuit Tests (Hybrid))
- Section 181 (Emission Control System (Inspection) (Hybrid))
- Section 182 (Power Mirror Control System (W/O Memory) - Diagnostics & Symptom Tests - (Hybrid))
- Section 183 (Climate Control Seat - Diagnostics & Symptom Tests (Hybrid))
- Different car
Factory Service Tools
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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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