2012 Toyota Corolla service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications, torque values, and reference data
- Electrical diagnostics with full wiring diagrams
- Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
- Diagnostic trouble codes and troubleshooting flow
- Maintenance schedules and fluid capacities
Trims covered
- Base, Automatic Trans
- Base, Standard Trans
- LE
- S, Automatic Trans
- S, Standard Trans
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Maintenance & Lubrication
- Specifications
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Diagnostic Trouble Codes
- Technical Service Bulletins
- Wiring Diagrams
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2016 4Runner, 2003-2006 Tundra, 2003-2013 Corolla, 2009-2010 Corolla Matrix, 2004-2005 RAV4, 2002-2007 Sequoia, 2011-2013 Si
An inflator explosion may result in sharp metal fragments striking the driver or other occupants res
Toyota will notify owners. Depending on the vehicle model, dealers will replace the front driver in
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2011-2019 Corolla, 2011-2013 Matrix, 2012-2018 Avalon, and 2013-2018 Avalon Hybrid vehicles. During certain crashes, the air ba
In the event of a crash, air bags and/or seat belt pretensioners that do not deploy as intended may
Toyota will notify owners, and dealers will inspect the ECU and install a noise filter between the a
Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, an
If the front passenger seat occupant sensing system is out of calibration, the front passenger airba
Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2012 Toyota 4Runner, Corolla, Corolla Matrix, Sienna, Yaris, Scion xB, Lexus ES350, GX460, IS-F, IS250, IS350, IS250C, IS350C, an
An inflator rupture may result in metal fragments striking the vehicle occupants resulting in seriou
Toyota will notify the Toyota, Scion and Lexus owners. General Motors will contact the Pontiac owne
Some 2005 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Servic
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicl
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from weather elements and in
Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal areas such as the hood
Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination. Follow the Removal Procedure i
Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can be identified by the
Some 2005 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Servic
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicl
Showing the 8 most recent of 176 technical service bulletins on file with NHTSA.
Hit head in passengers side into a cement pole, car was a total loss. No airbags deployed causing bodily injury to driver and passenger from impact and seatbelt , stopping us . Chest cavity injuryâs
TL* THE CONTACT OWNS A 2012 TOYOTA COROLLA. THE CONTACT STATED THE WHILE DRIVING AT 45 MPH, THE CONTACT CRASHED INTO A DEER THAT CAME INTO ITS PATH PUSHING THE RADIATOR INTO THE ENGINE BLOCK. THE FRON
I BELIEVE THERE IS A SERIOUS SAFETY ISSUE RELATED TO THE PLACEMENT OF THE AIR BAG SENSOR. MY WIFE AND A CO-WORKERS WIFE WERE INVOLVED IN AN ACCIDENT THAT SEVERELY DEFORMED THE FRONT OF A 2012 TOYOTA C
The contact owned a 2012 Toyota Corolla. The contact stated that while parking in a post office parking lot and depressing the brake pedal, the vehicle experienced sudden and unintended acceleration,
I got a car accident on Oct 30,2024. The air bag didn't deployed and my head has been injured.
Showing the 5 most serious of 496 complaints filed with NHTSA.
