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Service bulletins for the 2012 Toyota Corolla

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

350 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
T-SB-0141-10 Rev2018-04-02. Service bulletin. STRUCTURE:EMERGENCY:ESCAPE/EGRESS/EXIT; BACK OVER PREVENTION. If a creak, tick, or rattle noise is heard at the top or bottom of the windshield, or at the top of the rear glass, the source of the noise may be the two stoppers bonded to the top of the windshield/rear glass, or the windshield retainers bonded to the lower edge of the windshield. This bulletin provides the recommended repair procedure to eliminate these types of noises from the windshield/rear glass area.
T-TT-0246-132018-04-02. Service bulletin. VISIBILITY. Tips for writing a DPR (Dealer Product Report) on manufacturing issues for windows and windshields.
T-TT-0242-132018-04-02. Service bulletin. POWER TRAIN; STEERING. Some customers have experienced amber colored oil like substance found on floor mats. Further investigation reveals the electric power steering column showing signs of the oiling substance leaking.
T-SB-0083-132018-04-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT:APPLIANCE:AIR CONDITIONER. The procedure in this bulletin is a general guideline on how to properly diagnose the air conditioning system after a component failure. Refer to the applicable Repair Manual for vehicle specific repair procedures and parts.
T-SB-0235-12 Rev2018-04-02. Service bulletin. SERVICE BRAKES. Some 2009 ? 2013 Corolla vehicles may exhibit a condition where, over time, there is a slight, but perceptible increase in brake pedal travel. This condition has no effect on braking performance. Improved rear drum brake adjusters have been developed to improve this condition.
T-TT-0250-13 Rev2018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. To receive satellite radio functions after the initial trial period has expired, the customer must enter into a contract with XM Satellite Radio Inc. After entering into a contract, registration of an 8-digit XM Radio ID is required. This 8-digit XM Radio ID is found by turning to channel ?0? of the satellite radio.
T-TT-0051-10 Rev2018-04-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. If a customer states there is an unpleasant odor in the vehicle from the HVAC system, there are various factors that may be involved.
T-TT-0051-102018-04-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER. If a customer states there is an unpleasant odor in the vehicle from the HVAC system, there are various factors that may be involved.
T-TT-0269-132018-04-02. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. The appearance of spots in tempered glass (when viewed at certain angles) is the result of the heat treating and quick quenching process during manufacturing.
T-TT-0268-132018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone or they have restored their phone data/settings recently.
T-TT-0267-132018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL. Some vehicles equipped with Display Audio may exhibit a condition where the touch screen is inoperative.
T-TT-0262-132018-04-02. Service bulletin. ENGINE. Due to the improved performance and durability of 0w-20 synthetic oil, Toyota has extended the oil change intervals to 10,000 miles for most vehicles that require this oil. With this change, the following should be noted
T-TT-0260-132018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL. Customer?s experiencing this condition can use a 3rd party podcast application on their iPhone (such as Pocket Casts or Instances) instead of the native Apple Podcast application.
T-SB-0071-11 Rev2018-04-02. Service bulletin. POWER TRAIN. The purpose of this service bulletin is to provide precautions to follow when installing an automatic transmission/transaxle assembly to avoid MIL ?ON,? shifting issues, and/or transmission damage. Use the information in this bulletin when installing an automatic transmission/transaxle assembly
T-SB-0093-12 Rev2018-04-02. Service bulletin. UNKNOWN OR OTHER. This bulletin is no longer applicable and is now obsolete.
T-SB-0163-132018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Use the following procedures to check and/or update the software version of Entune/Navigation for Non-HDD Type units.
T-SB-0051-13 Rev2018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Applicability has been updated to include 2014 model year Avalon, Avalon HV, Camry, Camry HV, Prius, Prius C, Prius PHV, Prius V, Venza vehicles. Vehicle equipped with a Display Audio Navigation System and Entune (version less than 2.1.0) may exhibit one or more of the following conditions. Vehicle orientation slow to update after vehicle start up. Five Bing results are not all displayed on the map.
T-SB-0026-12 Rev2018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This bulletin is now obsolete. Please see T-SB-0163-13 .
T-SB-0122-11 Rev2018-04-02. Service bulletin. AIR BAGS; SEATS; EQUIPMENT. Beginning in 1998, Toyota introduced side airbags as optional equipment. Toyota does NOT recommend replacement of original seat covers with non-Toyota leather or other seat cover materials on vehicles due to the following: Seat covers NOT recommended by Toyota may affect side airbag performance, in general or in part, during an accident. Modifications that negatively affect side airbag performance can result in severe occupant injuries. Seat covers are an integral part of this safety system. Replacing fabric seat covers with non-Toyota leather or other seat cover materials may compromise the effectiveness of this safety system. The design of the seat is complex, integrating safety and strength with comfort and luxury. Toyota strongly discourages modifying original equipment seats that have optional side airbags. Additionally, Toyota strongly advises against the installation or use of aftermarket seat covers, which could impair the performance of the side airbags in the event of an accident.
T-TT-0128-112018-04-02. Service bulletin. EQUIPMENT. The Premium Display Audio type Entune system does not connect to the internet when using an iPhone.
T-TT-0124-112018-04-02. Service bulletin. TIRES. Please refer to the following recommendations for the best practices for vehicle tire rotations.
T-TT-0240-132018-04-02. Service bulletin. EQUIPMENT. When diagnosing audio, navigation, and Bluetooth concerns on Toyota vehicles equipped with Premium Display Audio with Entune, adhere to the guidelines listed below.
TS-BO030-01 Obso2018-04-02. Service bulletin. VISIBILITY/WIPER. This bulletin is now obsolete. Please see T-SB-0185-13.
T-SB-0185-132018-04-02. Service bulletin. VISIBILITY. The following procedures are recommended during routine maintenance or in the event of a customer concern for wiper performance.
T-SB-0142-132018-04-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Some 2004 ? 2014 model year Toyota vehicles may exhibit odors naturally occurring from the HVAC system and/or related environmental factors. Although there is no way to eliminate these odors, follow the General Procedure in this bulletin to minimize the odors experienced.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.