Technical Service Bulletins

Technical Service Bulletins

Mitchell 1
Technical Service Bulletins

Completing Acura Neutral Memorization

This bulletin applies to 2013-2019 Acura ILX and ILX Hybrid, 2014-2019 MDX, 2017-2019 NSX, 2013-2018 RDX, 2014-2019 RLX/RLX Sport Hybrid, and 2015-2020 TLX vehicles, where neutral...
Technical Service Bulletins

Replacing Jeep Transmission Range Sensor

This bulletin applies to 2016-2017 Jeep Patriot/Compass vehicles built on or after June 20, 2016, and on or before March 31, 2017, and equipped with a 6-speed automatic transmission...
Mitchell 1
Location of oxygen sensor S1.
Technical Service Bulletins

Replace Hyundai O2 Sensor

This bulletin applies to 2013-2015 Hyundai Veloster vehicles equipped with a 1.6L turbo GDI engine.
Photo: Mercedes -Benz
Inspect the steering boots for damage.
Technical Service Bulletins

Mercedes Steering Rattles and Hums

Mercedes-Benz vehicles equipped with electric power steering, such as the 2016 C300, may emit a rattling/humming noise from the electric steering system when steering. The issue...
Photo: Mitchell 1
Checking resistance of the DC/DC converter.
Technical Service Bulletins

Diagnosing HVAC Issue for the Rav4 EV

Some 2012-2014 Toyota RAV4 EV vehicles may experience a lack of heat from the HVAC system. An updated PTC heater is available to address this concern (electric heater sub-assembly...

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Photo: Buick
With 2008-2015 Buick Enclave vehicles equipped with a 3.6L engine, there's a difference between normal roughness and random misfires, and misfires caused by debris in the serpentine belt or balancer pulley.
Technical Service Bulletins

Debris May Cause Buick Misfire

This bulletin applies to 2008-2015 Buick Enclave vehicles equipped with a 3.6L engine. Some customers may comment about an engine misfire and check engine light with any or all...
Photo: Ford
Some 2012-2013 Ford F-150 trucks equipped with a 5.0L engine may buck or jerk under light throttle for the first 60 seconds after startup with engine coolant temperature (ECT) at about 100 degrees Fahrenheit.
Technical Service Bulletins

Calm a Jerky Ford F-150

Some 2012-2013 Ford F-150 trucks equipped with a 5.0L engine and built on or before Dec. 4, 2012, may buck or jerk under light throttle for the first 60 seconds after startup ...
Photo: Chrysler
On some Ram trucks built on or before Nov. 20, 2012, customers might hear a chirping noise from the belt in the engine compartment. Remove the serpentine belt and operate the engine with the belt removed for no more than 15 seconds. If the noise was eliminated, visually inspect all accessory drive pulleys for damage/debris/corrosion. Replace as needed. Install the revised serpentine belt P/N 68204819AA, which is able to compensate for slight pulley misalignment. Verify that the noise has been eliminated.
Technical Service Bulletins

Diagnosing a Noisy Ram Belt

This bulletin applies to 2009-2013 Ram 1500, 2009-2013 2500, 2009 3500, and 2013 3500 trucks equipped with a 5.7L engine and built on or before Nov. 20, 2012. The customer may...
Photo: Mitchell 1
Replace the existing clamp with exhaust band clamp 23424562.
Technical Service Bulletins

Chevy Truck Cat Needs a Clamp

In some 2013 Chevy Silverado trucks equipped with a 6.0L engine, the MIL may be on with DTC P0420 (catalyst system low efficiency) stored.
Photo: Lincoln
Some 2018 Lincoln Navigator vehicles may exhibit a battery draw from an electronic park brake (EPB) switch internal short.
Technical Service Bulletins

Park Brake May Drain the Battery

Some 2018 Lincoln Navigator vehicles may exhibit a battery draw resulting in a discharged battery. An electronic park brake (EPB) switch internal short may cause the ABS module...
Photo: Mitchell 1
Example of a front grille upper molding rear with CMBS.
Technical Service Bulletins

Inspect the Acura Grille

This applies to all Acura vehicles equipped with CMBS (collision mitigation braking system) where the millimeter wave radar looks through the front grille upper molding.
All Photos: Mitchell 1
The newest to oldest oil control valves are shown from left to right.
Technical Service Bulletins

Match Oil Control Valve to Cylinder Head

This bulletin applies to all Kia vehicles equipped with 2.4L Theta I & II engines. The correct OCV (oil control valve) must be matched with the proper cylinder head when servicing...
Photo: Fiat
2014-2015 Fiat 500L vehicles that sit for long periods of time are prone to experience intermittent battery drain. Reprogram the BCM with the latest software using wiTECH software level 15.02 or higher.
Technical Service Bulletins

Powering Up a Dead Fiat

This bulletin applies to 2014-2015 Fiat 500L vehicles that experience intermittent battery drain after sitting for long periods of time.
Photo: Toyota
Some 2016-2018 Toyota Tacoma vehicles may exhibit a stumble at WOT (wide open throttle) takeoff when operating in a high altitude area.
Technical Service Bulletins

Toyota Tacoma Glitch in Thin Air

Some 2016-2018 Toyota Tacoma vehicles equipped with a 2GR-FKS engine and automatic transmission may exhibit a stumble at WOT (wide open throttle) takeoff during operation in a...
Photo: Mitchell 1
1) Transmission fluid pump B. 2) Connector. When replacing the pump also replace all four mounting bolts.
Technical Service Bulletins

Check Gear Oil Pump for Audi Rattle

On 2017 Audi A4, A5 and A6 vehicles, a rattling noise may be heard from under the vehicle. The noise may be traced to the transmission gear oil pump.
Photo Credit: Subaru
When diagnosing a 2011 Subaru Forester equipped with a 2.5L (non turbo) engine for an unusual sound, and the noise is determined to be coming from the left side cylinder head area, the head, intake camshaft, intake valves and all rocker arm pivots may need to be replaced.
Technical Service Bulletins

Stopping Subaru Idle Noise

This bulletin applies to 2011 Subaru Forester models equipped with a 2.5L naturally aspirated engine.
Photo Credit: Toyota
The ECM logic has been changed to reduce the possibility of this concern. Reprogram the ECM with the latest calibration.
Technical Service Bulletins

Check on Toyota Air Switching Valve

Some 2014-2015 Toyota Tundra trucks equipped with a 3UR engine may exhibit a MIL on with DTC P2440 (secondary air injection system switching valve stuck open bank 1) and/or P2442...

Smart Pedal Education for Kia

This bulletin applies to 2012 and later Kia vehicles.

Steering Noise Issue for Mercedes-Benz

This bulletin applies to some 2014 Mercedes-Benz C350 vehicles.

Porsche Diesel Update

This bulletin applies to 2009-later Porsche Cayenne Diesel vehicles.

Toyotas Need an A/C Fix

Some Toyota vehicles (2011-2013 Highlander, Sequoia and Sienna) may exhibit a condition where there is a lack of cooling from the A/C system.

Kias Need a New Fuel Injector

This bulletin provides information about the replacement of the fuel injectors in some Kia Sorento vehicles equipped with a 2.4L GDI engine built 12-17-2012 to 12-11-2014, Optima...

Land Rover EPB Is Stuck

This bulletin applies to 2014 Land Rover/Range Rover Sport vehicles. A “Park Brake needs Calibration” message may appear on the instrument cluster.

Check for a Loose Connector on the Subaru

This bulletin applies to 2019 Subaru Forester vehicles. The DMS (driver monitoring system) may be inoperative.

Audis Are Making Strange Noises

Strange noises may be heard from the engine compartment on various Audi vehicles equipped with a 3.0L engine. The noises may be traced to the lower area of the compressor/intake...
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Long First Gear for Ram Requires Software Fix

This bulletin applies to 2014 Ram 1500 trucks equipped with a 3.5L engine and the stop/start system, built on or between July 1, 2013, and May 15, 2014.

Fram Announces New Ultra Synthetic Oil Filter Design

Fram announced the arrival of the new Fram Ultra Synthetic oil filter, which now features an innovative two-ply media design.
Latest News

Ford Direct Injection Idle

This issue is with some 2013-2014 Ford Explorer and Flex vehicles equipped with a 3.5L GTDI engine and built on or before June 1, 2014.
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Air Compressor Problem for Ram

This bulletin applies to 2014-2015 RAM 2500/3500 vehicles built on or before May 23, 2015, equipped with Auto Level Rear Air Suspension.