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 Lexus IS 350 Base, AWDFACTORY OEM SERVICE PROCEDURE
External Pages
These are pages that do not belong to the exact selected vehicle (2018 Lexus IS 350 Base, AWD), 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 (Automatic Transmission System (Aa81E) - Service Information (1 Of 2))
- Section 2 (Automatic Transmission System (Aa81E, For 2GR-FKS) - Diagnostics - Introduction)
- Section 3 (Automatic Transmission System (Aa81E, For 2GR-FKS) - Diagnostic Codes (3 Of 4))
- Section 4 (Automatic Transmission System (Aa81E, For 2GR-FKS) - Diagnostic Codes (2 Of 4))
- Section 5 (Automatic Transmission System (Aa81E, For 2GR-FKS) - Diagnostic Codes (4 Of 4) & Circuit Tests)
- Section 6 (Automatic Transmission System (Aa81E, For 2GR-FKS) - Diagnostic Codes (1 Of 4))
- Different car
- Section 1 (Front Camera System - Diagnostic Codes)
- Section 2 (Lane Tracing Assist System - Diagnostic Codes & Circuit Tests)
- Section 3 (Road Sign Assist System - Diagnostic Codes)
- Section 4 (Lighting System (Ext) - Diagnostic Codes & Circuit Tests)
- Section 5 (Front Camera System - Diagnostics - Introduction)
- Section 6 (Automatic Transmission System (Aa80E) - Service Information)
- Section 7 (Battery / Charging System (8AR-FTS) - Diagnostic Codes & Symptom Tests)
- Section 8 (Charging System (2GR-FSE) - Diagnostics & Symptom Tests)
- Section 9 (Front Radar Sensor System - Diagnostic Codes)
- Section 10 (Charging System (2UR-GSE) - Diagnostic Codes & Symptom Tests)
- Section 11 (Engine Intake / Exhaust System (4GR-FSE) - Service Information)
- Section 12 (Fuel System (4GR-FSE) - Inspection)
- Section 13 (Engine Control System (4GR-FSE) - Service Information)
- Section 14 (Engine Mechanical System (4GR-FSE) - Service Information (1 Of 2))
- Section 15 (Engine Control System (4GR-FSE) - Diagnostic Codes (5 Of 5) & Circuit Tests)
- Section 16 (Engine Control System (4GR-FSE) - Diagnostics - Introduction (1 Of 2))
- Section 17 (Engine Intake / Exhaust System (8AR-FTS) - Service Information)
- Section 18 (Engine Intake / Exhaust System (2GR-FSE) - Service Information)
- Section 19 (Ignition System (2GR-FSE) - Inspection)
- Section 20 (Engine Control System (2GR-FSE) - Diagnostics - Introduction (1 Of 4))
- Section 21 (Engine Control System (2GR-FSE) - Service Information)
- Section 22 (Engine Control System (2GR-FSE) - Diagnostic Codes (4 Of 6))
- Section 23 (Engine Mechanical System (8AR-FTS) - Service Information (1 Of 2))
- Section 24 (Engine Mechanical System (8AR-FTS) - Service Information (2 Of 2))
- Section 25 (Engine Control System (8AR-FTS) - Service Information)
- Section 26 (Emission Control System (8AR-FTS) - Service Information)
- Section 27 (Engine Control System (8AR-FTS) - Diagnostics - Introduction (1 Of 6))
- Section 28 (Engine Cooling System (8AR-FTS) - Service Information)
- Section 29 (Lane Departure Alert System - Diagnostic Codes & Circuit Tests)
- Section 30 (Lane Departure Alert System - Diagnostics - Introduction)
- Section 31 (Charging System (2GR-FSE) (Service Specifications))
- Section 32 (Automatic Transmission System (Aa81E, For 8AR-FTS) - Diagnostic Codes (2 Of 4))
- Section 33 (Automatic Transmission System (Aa81E, For 8AR-FTS) - Diagnostics - Introduction (1 Of 2))
- Section 34 (Automatic Transmission System (Aa81E, For 8AR-FTS) - Diagnostics - Introduction (2 Of 2))
- Section 35 (Engine Control System (8AR-FTS) - Diagnostics - Introduction (5 Of 6))
- Section 36 (Engine Control System (8AR-FTS) - Diagnostic Codes (01 Of 14))
- Section 37 (Engine Control System (8AR-FTS) - Diagnostic Codes (02 Of 14))
- Section 38 (Engine Control System (8AR-FTS) - Diagnostic Codes (03 Of 14))
- Section 39 (Engine Control System (8AR-FTS) - Diagnostic Codes (04 Of 14))
- Section 40 (Engine Control System (8AR-FTS) - Diagnostic Codes (05 Of 14))
- Section 41 (Engine Control System (8AR-FTS) - Diagnostic Codes (06 Of 14))
- Section 42 (Engine Control System (8AR-FTS) - Diagnostic Codes (07 Of 14))
- Section 43 (Engine Control System (8AR-FTS) - Diagnostic Codes (08 Of 14))
- Section 44 (Engine Control System (8AR-FTS) - Diagnostic Codes (09 Of 14))
- Section 45 (Engine Control System (8AR-FTS) - Diagnostic Codes (10 Of 14))
- Section 46 (Engine Control System (8AR-FTS) - Diagnostic Codes (11 Of 14))
- Section 47 (Engine Control System (8AR-FTS) - Diagnostic Codes (12 Of 14))
- Section 48 (Engine Control System (8AR-FTS) - Diagnostic Codes (13 Of 14))
- Section 49 (Engine Control System (8AR-FTS) - Diagnostic Codes (14 Of 14) & Symptom Tests (1 Of 4))
- Section 50 (Engine Lubrication System (8AR-FTS) - Service Information)
- Section 51 (Engine Cooling System (8AR-FTS) - Inspection)
- Section 52 (Lighting System (Ext) - Diagnostics - Introduction (1 Of 2))
- Section 53 (Panoramic View Monitor System - Diagnostics - Introduction)
- Section 54 (Tires / Wheel System - Service Information)
- Section 55 (Charging System (4GR-FSE) - Diagnostics & Symptom Tests)
- Section 56 (Engine Control System (2GR-FSE) - Diagnostic Codes (6 Of 6) & Circuit Tests)
- Section 57 (Automatic Transmission System (Aa81E, For 2GR-FSE) - Diagnostic Codes (4 Of 4) & Circuit Tests)
- Section 58 (Engine Control System (8AR-FTS) - Circuit Tests & Symptom Tests (2 Of 4))
- Section 59 (Fuel System (8AR-FTS) - Service Information)
- Section 60 (Engine Starting System (8AR-FTS) - Service Information)
- Section 61 (Engine Control System (8AR-FTS) - Diagnostics - Introduction (2 Of 6))
- Section 62 (Engine Control System (8AR-FTS) - Diagnostics - Introduction (3 Of 6))
- Section 63 (Engine Control System (8AR-FTS) - Diagnostics - Introduction (4 Of 6))
- Section 64 (Engine Control System (8AR-FTS) - Diagnostics - Introduction (6 Of 6))
- Section 65 (Fuel System (8AR-FTS) - Inspection)
- Section 66 (Parking Support Alert System - Diagnostics - Introduction)
- Section 67 (Automatic Transmission System (Aa81E, For 8AR-FTS) - Diagnostic Codes (3 Of 4))
- Section 68 (Engine Mechanical System (2GR-FSE) - Service Information (1 Of 2))
- Section 69 (Engine Mechanical System (2UR-GSE) - Service Information)
- Section 70 (Engine Mechanical System (2GR-FSE) - Service Information (2 Of 2))
- Section 71 (Engine Cooling Fan System (2GR-FSE) - Diagnostics & Circuit Tests)
- Section 72 (Cooling Fan System (4GR-FSE) - Diagnostics & Circuit Tests)
- Section 73 (Engine Cooling Fan System (8AR-FTS) - Diagnostics & Circuit Tests)
- Section 74 (Engine Cooling Fan System (2UR-GSE) - Diagnostics & Circuit Tests)
- Section 75 (Ignition System (8AR-FTS) - Inspection)
- Section 76 (Engine Intake System (8AR-FTS) - Inspection)
- Section 77 (Emission Control System (8AR-FTS) - Inspection)
- Section 78 (Engine Control System (8AR-FTS) - Symptom Tests (3 Of 4))
- Section 79 (Engine Control System (8AR-FTS) - Symptom Tests (4 Of 4))
- Section 80 (Cruise Control System (2GR-FSE, 4GR-FSE) - Diagnostics - Introduction)
- Section 81 (Cruise Control System (2GR-FSE,4GR-FSE) - Diagnostic Codes & Circuit Tests)
- Section 82 (Automatic Transmission System (A760H) - Diagnostic Codes (2 Of 2) & Circuit Tests)
- Section 83 (Automatic Transmission System (A960E) - Diagnostic Codes (2 Of 2) & Circuit Tests)
- Section 84 (Engine Lubrication System (8AR-FTS) - Inspection)
- Section 85 (Battery / Charging System (8AR-FTS) - Service Information)
- Section 86 (Fuel System (2GR-FSE) - Service Information)
- Section 87 (Fuel System (4GR-FSE) - Service Information)
- Section 88 (Automatic Transmission System (A760H) - Diagnostics - Introduction)
- Section 89 (Automatic Transmission System (A960E) - Diagnostics - Introduction)
- Section 90 (Automatic Transmission System (Aa81E, For 2GR-FSE) - Diagnostics - Introduction)
- Section 91 (Variable Gear Ratio Steering System - Diagnostics - Introduction)
- Section 92 (Steering Control System - Service Information)
- Section 93 (Engine Lubrication System (2GR-FSE) - Service Information)
- Section 94 (Engine Lubrication System (4GR-FSE) - Service Information)
- Section 95 (Engine Cooling System (2GR-FSE) - Service Information)
- Section 96 (Engine Cooling System (4GR-FSE) - Service Information)
- Section 97 (Engine Starting System (2GR-FSE) - Service Information)
- Section 98 (Engine Starting System (4GR-FSE) - Service Information)
- Section 99 (Engine Cooling System (2GR-FSE) - Inspection)
- Section 100 (Parking Support Alert System - Diagnostic Codes & Circuit Tests)
- Section 101 (Engine Control System (2UR-GSE) - Diagnostics - Introduction (1 Of 2))
- Section 102 (Automatic Transmission System (Aa80E) - Diagnostics - Introduction)
- Section 103 (Parking Support Brake System - Diagnostics - Introduction)
- Section 104 (Automatic Transmission System (Aa80E) - Diagnostic Codes (1 Of 2))
- Section 105 (Engine Control System (2UR-GSE) - Diagnostic Codes (3 Of 4))
- Section 106 (Engine Control System (2UR-GSE) - Diagnostics - Introduction (2 Of 2))
- Section 107 (Automatic Transmission System (Aa80E) - Diagnostic Codes (2 Of 2) & Circuit Tests)
- Section 108 (Engine Control System (2UR-GSE) - Circuit Tests & Symptom Tests)
- Section 109 (Fuel System (2UR-GSE) - Inspection)
- Section 110 (Ignition System (2UR-GSE) - Inspection)
- Section 111 (Engine Control System (2UR-GSE) - Diagnostic Codes (1 Of 4))
- Section 112 (Engine Control System (2UR-GSE) - Diagnostic Codes (2 Of 4))
- Section 113 (Engine Control System (2UR-GSE) - Diagnostic Codes (4 Of 4))
- Section 114 (Engine Starting System (2UR-GSE) - Service Information)
- Section 115 (Fuel System (2UR-GSE) - Service Information)
- Section 116 (Engine Control System (2UR-GSE) - Service Information)
- Section 117 (Engine Intake System (2UR-GSE) - Inspection)
- Section 118 (Emission Control System (2UR-GSE) - Service Information)
- Section 119 (Emission Control System (2UR-GSE) - Inspection)
- Section 120 (Battery / Charging System (4GR-FSE) - Service Information)
- Section 121 (Engine Mechanical System (4GR-FSE) - Service Information (2 Of 2))
- Section 122 (Automatic Transmission System (Aa81E, For 2GR-FSE) - Diagnostic Codes (1 Of 4))
- Section 123 (Engine Control System (2GR-FSE) - Diagnostics - Introduction (3 Of 4))
- Section 124 (Engine Control System (2GR-FSE) - Diagnostics - Introduction (4 Of 4))
- Section 125 (Automatic Transmission System (Aa81E, For 2GR-FSE) - Diagnostic Codes (3 Of 4))
- Section 126 (Engine Control System (4GR-FSE) - Diagnostics - Introduction (2 Of 2))
- Section 127 (Ignition System (4GR-FSE) - Inspection)
- Section 128 (Engine Control System (4GR-FSE) - Diagnostic Codes (1 Of 5))
- Section 129 (Engine Control System (4GR-FSE) - Diagnostic Codes (3 Of 5))
- Section 130 (Engine Control System (4GR-FSE) - Diagnostic Codes (2 Of 5))
- Section 131 (Automatic Transmission System (A960E) - Service Information)
- Section 132 (Engine Intake System (4GR-FSE) - Inspection)
- Section 133 (Emission Control System (4GR-FSE) - Service Information)
- Section 134 (Automatic Transmission System (Aa81E, For 8AR-FTS) - Diagnostic Codes (4 Of 4) & Circuit Tests)
- Section 135 (Automatic Transmission System (Aa81E, For 8AR-FTS) - Diagnostic Codes (1 Of 4))
- Section 136 (Electric Parking Brake System - Diagnostics - Introduction)
- Section 137 (Electric Parking Brake System - Diagnostic Codes & Symptom Tests)
- Section 138 (Charging System (2UR-GSE) - Diagnostics - Introduction)
- Section 139 (Charging System (2UR-GSE) - Service Information)
- Section 140 (Charging System (2GR-FSE) - Service Information)
- Section 141 (Battery / Charging System (8AR-FTS) - Diagnostics - Introduction)
- Section 142 (Front Radar Sensor System - Diagnostics - Introduction)
- Section 143 (Lane Tracing Assist System - Diagnostics - Introduction)
- Section 144 (Panoramic View Monitor System - Diagnostic Codes & Symptom Tests)
- Section 145 (Rear View Monitor System - Diagnostic Codes & Circuit Tests)
- Section 146 (Rear View Monitor System - Diagnostics - Introduction)
- Section 147 (Engine Cooling System (2UR-GSE) - Service Information)
- Section 148 (Engine Control System (2GR-FSE) - Diagnostic Codes (1 Of 6))
- Section 149 (Engine Control System (2GR-FSE) - Diagnostic Codes (2 Of 6))
- Section 150 (Engine Control System (2GR-FSE) - Diagnostic Codes (3 Of 6))
- Section 151 (Engine Control System (2GR-FSE) - Diagnostic Codes (5 Of 6))
- Section 152 (Engine Control System (2GR-FSE) - Diagnostics - Introduction (2 Of 4))
- Section 153 (Engine Cooling System (4GR-FSE) - Inspection)
- Section 154 (Engine Control System (4GR-FSE) - Diagnostic Codes (4 Of 5))
- Section 155 (Engine Lubrication System (4GR-FSE) - Inspection)
- Section 156 (Automatic High Beam System - Diagnostic Codes & Circuit Tests)
- Section 157 (Road Sign Assist System - Diagnostics - Introduction)
- Section 158 (Rear Seat Reminder System - Inspection)
- Section 159 (Automatic Transmission System (A760H) - Diagnostic Codes (1 Of 2))
- Section 160 (Fuel System (2GR-FSE) - Inspection)
- Section 161 (Engine Lubrication System (2GR-FSE) - Inspection)
- Section 162 (Emission Control System (2GR-FSE) - Service Information)
- Section 163 (Engine Lubrication System (2UR-GSE) - Service Information)
- Section 164 (Engine Lubrication System (2UR-GSE) - Inspection)
- Section 165 (Engine Cooling System (2UR-GSE) - Inspection)
- Section 166 (Automatic Transmission System (Aa81E, For 2GR-FSE) - Diagnostic Codes (2 Of 4))
- Section 167 (Lighting System (Ext) - Diagnostics - Introduction (2 Of 2))
- Section 168 (Variable Gear Ratio Steering System - Diagnostic Codes & Symptom Tests)
- Section 169 (Automatic Transmission System (A960E) - Diagnostic Codes (1 Of 2))
- Section 170 (Pre-Collision System Cancel Switch - Service Information)
- Section 171 (Engine Intake System (2GR-FSE) - Inspection)
- Section 172 (Cruise Control System (8AR-FTS) - Diagnostics - Introduction)
- Section 173 (Cruise Control System (8AR-FTS) - Diagnostic Codes & Circuit Tests)
- Section 174 (Engine Intake / Exhaust System (2UR-GSE) - Service Information)
- Section 175 (Parking Support Brake System - Diagnostic Codes)
- Section 176 (Emission Control System (2GR-FSE) - Inspection)
- Section 177 (Engine Starting System (2GR-FSE) (Service Specifications))
- Section 178 (Engine Mechanical System (2GR-FSE) (Service Specifications))
- Section 179 (Engine Cooling System (2GR-FSE) (Service Specifications))
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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