AfterMarketNews AfterMarketNews Auto Care Pro AutoCareCareerHub Brake&Frontend BodyShopBusiness Counterman EngineBuilder Fleet Equipment ImportCar Motorcycle & Powersports News Servicio Automotriz Shop Owner Tire Review Tech Shop Tomorrow's Tech Underhood Service Speedville

Woman's Tough Road Leads To Ownership Of Triangle Tires

Women auto shop owners aren’t rare anymore, but the story of Gina Paschall, owner of Triangle Tires in North Carolina, is definitely unique. According to The News & Observer in Raleigh, NC, Paschall, now 51, became a ward of the state at 5 years...

Read more...

Google Your Shop - What Do You See?

Go and enter the name of your shop at Google.com. Try putting quote marks around the name of your shop, like “Main Street Auto Care.” Now try entering the city where you are located with the name of your shop. What did you find? Your shop’s website?...

Read more...

Tennessee Shop Offers Discounts To Customers In Need

Price is often the biggest sticking point in an auto repair job. Some customers just have no feel for what certain services or parts cost, others have perhaps been treated poorly in the past (or are cheap), and some just flat out do not have the money....

Read more...

Vehicle Unit Increase; Import-Rich VIO Are A Boon for Import Specialists

Need a dose of good news for your business? Then hear this: The influx of new vehicles in the market will lay the foundation for bountiful aftermarket service and repair opportunities. And, with import vehicle sales continuing an ­upward climb, there...

Read more...

Honda: Engine Shuts Off, But Power Mode Stays In ‘On’ or ‘Accessory’

Applies To: Honda Insight models with one-push start Customers might complain that when they shift into park and shut off the engine, that the power mode stays in On or Accessory. Honda says the culprit could be a misadjusted shift cable. If the...

Read more...

Import Oil Specification Primer

As engine technology has evolved and fuel efficiency standards have tightened, oil specs have increased in importance. Using the wrong viscosity could set a fault code in some applications or interfere with the normal operation of the variable valve...

Read more...

Hunter Releases New Technical and Training-Specific Channel on YouTube

Hunter Engineering Company has launched a new technical and training channel on YouTube, called the Hunter Learning Channel. The Hunter Learning Channel features extensive training video playlists for every product category manufactured by Hunter....

Read more...

Ingersoll Rand Becomes ‘Official Power Tools of NASCAR’

NASCAR and Ingersoll Rand have announced a multi-year partnership designating Ingersoll Rand as the “Official Power Tools of NASCAR.” The multi-faceted agreement also designates Ingersoll Rand as an Official Partner of the International Motorsports...

Read more...

2015 Vehicle Lifting Points Guide Now Available

The Automotive Lift Institute, Inc. (ALI) announces the availability of the 2015 edition of ALI’s “Vehicle Lifting Points for Frame Engaging Lifts.” This updated guide is a quick-reference single-source manual for lifting point information as...

Read more...

Oldsmobile: Engine Overheats, Replaced Engine Coolant Thermostat

Model: 2003 Oldsmobile Alero Complaint The customer states the engine is overheating. Sometimes DTC P0125 Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control will be present. Cause Observed the engine coolant temperature...

Read more...

Avoid Alternator Returns, Make Peace With Your Parts Suppliers

If the charging voltage is low, or the alternator isn’t putting out enough current to keep up with the electrical loads that are placed upon it, don’t automatically assume the starter or alternator is bad and needs to be replaced (unless you’re...

Read more...

Solving Carbon Deposits In Direct Fuel Injection Engines

Symptom: Misfire codes, stumbling and suspicious fuel trim numbers. On a scan tool, the engine may show a loss in volumetric efficiency. The driver may complain about a loss of power, poor fuel economy and hard starts. Cause: Carbon deposits on...

Read more...

Home Tire Indirect Tire Pressure Monitoring Systems: The TPMS System That Knows The Road.

Print Print Email Email

Indirect TPMS is not as sensitive to changes in tire pressure as direct systems that actually monitor the air pressure inside the tire, but they are not as expensive either.  An indirect TPMS system is a relatively affordable add-on to a vehicle if it is already equipped with ABS.  Even so, the vast majority of vehicles that have TPMS use direct systems rather than indirect.

Federal law requires the TPMS system to alert the driver if the pressure inside a tire has dropped more than 25% below the recommended inflation pressure.  The same rules apply to direct and indirect TPMS systems.

One of the weaknesses of indirect systems is that they may not turn on the warning light if all the tires are underinflated by a similar amount. If the recommended pressure is 32 PSI, but all the tires are say 24 PSI (down 25%), the system won’t know there’s a problem because all will be rotating at the same speed when the vehicle is being driven.

 
INDIRECT TPMS APPLICATIONS
Indirect TPMS is used on a variety of General Motors models, a couple of Fords and a smattering of Toyota and other import models.  You won’t find it on any Audi, Chrysler, Honda, Hyundai, Kia, Nissan, Mazda, Mitsubishi, Porsche, Saab or Volvo products because they all use direct TPMS with pressure sensors inside the wheels.

Indirect TPMS applications include:
•  BMW X5 2002-2005
•  Buick LeSabre 2000-2005
•  Buick Lucerne  2006
•  Buick Park Avenue 1998-2005
•  Buick Regal 1999-2004
•  Buick Rendezvous 2003-2007
•  Chevy Impala 2000-2005
•  Chevy Monte Carlo 2000-2005
•  Ford Freestar 2004-2005 (some also have direct TPMS)
•  Ford Windstar 2001-2003
•  Lexus LS430 2004-2006
•  Lexus RX330 2004-2006
•  Mercedes C-Class 2007
•  Mercedes SLK 2005-2007
• Mercury Monterey 2004-2005 (some also have direct TPMS)
•  MINI Cooper 2004-2007
•  Oldsmobile Alero 1999-2000
•  Oldsmobile Aurora 2001-2003
•  Pontiac Aztec 2003-2005
•  Pontiac Bonneville 2000-2005
•  Pontiac Grand Am 1999-2002
•  Pontiac Grand Prix 2004-2006
•  Pontiac Vibe 2005-2007
•  Scion tC  2005-2006
•  Toyota Corolla 2005-2007
•  Toyota Matrix 2005-2006
•  Toyota Solara 2004-2006
•  Toyota Highlander 2004-2006
•  Toyota RAV4 2004-2005
•  Volkswagen GTI 2007
•  Volkswagen Jetta 2005-2007

WHERE TO FIND RESET PROCEDURES

Though all of these applications use a similar technology and strategy to detect a low tire, there is no common reset procedure.  GM is probably the worst, with 10 different reset procedures depending on the application. Toyota is probably the best, with only one simple reset procedure for all of their indirect TPMS systems (though a slightly different procedure is used on the Lexus models).

With so many different reset procedures, it’s important to make sure you are using the right procedure for the vehicle your are servicing.  The Tire Industry Association (www.tireindustry.org) publishes a great reference flip chart that covers TPMS reset and relearn procedures for direct and indirect TPMS on most domestic and import vehicles.  This chart is a “must have” addition to your technical library, and is must faster and easier to use than looking up TPMS reset procedures online via an aftermarket or OEM service information website.  The OEM websites all navigate differently, which means you can waste a lot of time hunting for information that is buried somewhere on their website.

TPMS reset procedures may also be found in the vehicle owner’s manual (if it hasn’t been lost).  Open the glove box and check the index in the owner’s manual for any TPMS information.

INDIRECT TPMS RESET PROCEDURES
As a rule, most indirect TPMS systems have a RESET button for recalibrating the system.  A reset is typically required after adding air to a low tire, after changing or servicing a tire, or after rotating the tires on a vehicle.

You usually turn the ignition on (engine off), and press the RESET button until the TPMS light flashes several times or goes off.  But there are a lot of variations on this basic procedure. Here are some selected examples of how to reset the system:

BUICK CENTURY

On General Motors applications, such as the Buick Century, turn the ignition ON after all of the tires have been inflated to the recommended pressure, but do not start or drive the vehicle.  With the key on, locate the TPMS reset button, then press the button until the TPMS warning light flashes three times.  Now turn the ignition off.  That resets the system and your customer is ready to go.

BUICK RENDEZVOUS
On some General Motors applications, though, there is no button marked TPMS or RESET. You may have to press other buttons on the instrument cluster or driver information center to get to the TPMS mode to reset the system.

On a Buick Rendezvous, you turn the ignition on (engine off), but hold down the MODE button on the driver information center until it displays “Low Tire Pressure Hold Set to Reset.”  Then you press and hold the SET button until you head a chime and the DIC displays “Tire Pressure Reset.”  You should then hear the chime rings three times and see “Tire Pressure Normal” on the display.

CHEVY IMPALA &
MONTE CARLO

On a Chevy Impala or Monte Carlo with indirect TPMS, a totally different reset procedure is required.  You can use the light switch or radio to reset the system.  With the light switch procedure, turn the ignition on (engine off), the turn the light switch from OFF to parking lamps three times within five seconds.  With the radio technique, turn the ignition on (engine off).  With the radio off, hold the DISP button until “SETTINGS” is displayed.  Use the SEEK button to scroll down the menu until you see “TIRE MON.”  Press the PREV or NEXT buttons until “RESET” is displayed.  Then press the DISP button again.  You should hear a chime and see “DONE” to indicate the TPMS system has been successfully reset.  Use the SEEK button to scroll through the menu until “DONE” is shown, then press DISP once more to exit from the learn mode.

FORD WINDSTAR

There are a couple of ways to reset an indirect TPMS systems on a Ford Windstar.  Some Windstars have a RESET button while others do not.  On the minivans that do have a RESET button (to the left of the steering column on the instrument panel), turn the ignition on (engine off), then press and hold the button for three seconds.  The TPMS warning light should blink three times then turn off.  If the minivan does not have a reset button, turn the ignition on (engine off), the press the Trip/Odometer button on the instrument cluster until “TIRE RESET” or “CHECK TIRE” and “RESET” are displayed.  Continue to hold the button for three seconds until the TPMS warning light flashes three times and turns off.

TOYOTA

On Toyota applications, the reset procedure is fairly straightforward, though it actually takes much longer to complete. Turn the key on (engine off), then press and hold the RESET button until the flashing TPMS warning light goes off.  Or, if it is not flashing, hold the RESET button until the light flashes three times.  Turn the key off.  But the relearn procedure is not complete until the vehicle is driven at 19 mph or faster for at least an hour. You don’t have to do this, obviously, but your customer should be made aware of the fact that the TPMS reset procedure won’t be complete until the car has been driven awhile. During this time, the TPMS system may not be able to detect a low tire, so make sure all the tires have been inflated to the correct pressure before the vehicle leaves your shop. In our October issue, we’ll cover some reset procedures for direct TPMS systems.
 

The following two tabs change content below.

Larry Carley

Larry Carley has more than 30 years of experience in the automotive aftermarket, including experience as an ASE-certified technician, and has won numerous awards for his articles. He has written 12 automotive-related books and developed automotive training software, available at www.carleysoftware.com.
Latest articles from our other sites:

Check Out The January Issue Of Brake & Front End Magazine

The digital version of the January issue of Brake & Front End magazine is available online. CLICK HERE to access the easy-to-view digital version that features articles on Alignment Tips, Servicing...More

Redline Detection Unveils New HD PowerSmoke

Redline Detection, a provider of OEM-approved automotive diagnostic leak detection equipment, recently unveiled the HD PowerSmoke for heavy-duty trucks, buses, commercial, industrial and agricultural applications...More

Vehicle Unit Increase; Import-Rich VIO Are A Boon for Import Specialists

Need a dose of good news for your business? Then hear this: The influx of new vehicles in the market will lay the foundation for bountiful aftermarket service and repair opportunities. And, with import...More

Honda: Engine Shuts Off, But Power Mode Stays In ‘On’ or ‘Accessory’

Applies To: Honda Insight models with one-push start Customers might complain that when they shift into park and shut off the engine, that the power mode stays in On or Accessory. Honda says the culprit...More

Hunter Releases New Technical and Training-Specific Channel on YouTube

Hunter Engineering Company has launched a new technical and training channel on YouTube, called the Hunter Learning Channel. The Hunter Learning Channel features extensive training video playlists for...More

Redline Detection Unveils New HD PowerSmoke

Redline Detection, a provider of OEM-approved automotive diagnostic leak detection equipment, recently unveiled the HD PowerSmoke for heavy-duty trucks, buses, commercial, industrial and agricultural applications...More

Oldsmobile: Engine Overheats, Replaced Engine Coolant Thermostat

Model: 2003 Oldsmobile Alero Complaint The customer states the engine is overheating. Sometimes DTC P0125 Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control will be present. Cause Observed...More

Avoid Alternator Returns, Make Peace With Your Parts Suppliers

If the charging voltage is low, or the alternator isn’t putting out enough current to keep up with the electrical loads that are placed upon it, don’t automatically assume the starter or alternator...More