Battery replacement assistance help
08-10-12, 04:48 AM
#16
How were you able to determine that the TPMS "benchmarks" were not altered?
08-10-12, 01:31 PM
#18
Everything on the car is still factory. What I'm saying is if the battery is completely drain them maybe u have to do all those things, but if your accessories are working and the car doesn't start and you Change the battery right away then the process isn't that drastic. At least that was the case for me.
08-10-12, 02:08 PM
#19
The TPMS is a NHTSA mandated safety system. Although these system are required on all cars sold in the US, there is no implementation standard, and thus, many variations. The LS460 does provide a display of the reported pressures for five wheels but there is no way to tell anything about the benchmarks. The benchmarks provide a reference that is used to calculate the low pressure warning thresholds, one for each wheel. The benchmarks are established by an initialization process that is started by pressing the TPMS SET button that is under the dash, above the drivers right knee. There are some conditions that must be met to correctly establish the benchmarks and if the button is operated when the conditions are not met then the benchmarks are mal-established and the safety advantage of the TPMS is compromised. Since the TPMS SET button can be operated by anyone, I always benchmark my TPMS after my car is serviced, tires are changed/rotated or the battery is discharged/reconnected. The owner's manual clearly says that TPMS initialization is required after the battery is discharged or reconnected and I always do that.
Some owners view the TPMS as a nuisance system and for them, skipping the recommendations probably works fine.
Some owners view the TPMS as a nuisance system and for them, skipping the recommendations probably works fine.
08-10-12, 06:31 PM
#20
The TPMS is a NHTSA mandated safety system. Although these system are required on all cars sold in the US, there is no implementation standard, and thus, many variations. The LS460 does provide a display of the reported pressures for five wheels but there is no way to tell anything about the benchmarks. The benchmarks provide a reference that is used to calculate the low pressure warning thresholds, one for each wheel. The benchmarks are established by an initialization process that is started by pressing the TPMS SET button that is under the dash, above the drivers right knee. There are some conditions that must be met to correctly establish the benchmarks and if the button is operated when the conditions are not met then the benchmarks are mal-established and the safety advantage of the TPMS is compromised. Since the TPMS SET button can be operated by anyone, I always benchmark my TPMS after my car is serviced, tires are changed/rotated or the battery is discharged/reconnected. The owner's manual clearly says that TPMS initialization is required after the battery is discharged or reconnected and I always do that.
Some owners view the TPMS as a nuisance system and for them, skipping the recommendations probably works fine.
Some owners view the TPMS as a nuisance system and for them, skipping the recommendations probably works fine.
08-13-12, 02:49 PM
#21
Pit Crew
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The battery was changed out and no issues whatsoever other than I dropped a couple of push pins putting back
on the engine covers, lost forever in the front wheel well somewhere down deep.
All presets stayed the same and no impact on my TPMS or anything else on the car.
Thanks for the assistance from all of you.
on the engine covers, lost forever in the front wheel well somewhere down deep.
All presets stayed the same and no impact on my TPMS or anything else on the car.
Thanks for the assistance from all of you.
08-13-12, 03:04 PM
#22
If I am doing the change-out in my garage where I have time and resources, I will connect a second battery to the cables with some alligator clips so the car never sees a no-voltage condition. That way nothing needs to be reset and there is no danger of voltage spikes causing computer problems.
08-13-12, 04:03 PM
#23
When I changed my battery the tech had a little device that plugged in via the cigarette lighter and was powered by a 9V battery. It supplied enough power to the car and absolutely no presets were lost. If I could recommend a battery it would be the Optima line. They are really fantastic batteries. I once left my 400 for nearly 2 months without being started and it cranked right up without any issues. They are a gel based battery so no maintenance or corrosion.
Something like this.
and
Edit: fixed link
Something like this.
and
Edit: fixed link
Last edited by Lavrishevo; 08-13-12 at 05:29 PM.
12-07-12, 01:03 PM
#26
Never used an Optima, which one is the right fit for an '07? This
or
?
12-07-12, 02:48 PM
#27
Never used an Optima, which one is the right fit for an '07? This Optima Batteries 8020-164 35 RedTop Starting Battery or Optima Batteries 8025-160 25 RedTop Starting Battery ?
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DrQuality (07-22-21)
02-11-20, 04:51 PM
#30
