Service mode?

[GMgarbage]

Do I have to put the Tahoe in "brake service mode" if I am only doing the fronts?

 

[B-train]

What's "brake service mode?" Never heard of it. What year? Does it have the pad life monitor?

 

[GMgarbage]

2022 yes has the pad life monitor

 

[AMWWORKS]

Is this what your looking for? (Pulled from another forum) This is the process used for the Trucks to put it on brake service mode.

"Block the drive wheels.

Turn the ignition switch to the ON/RUN position with the engine off.

Place the automatic transmission in PARK or manual transmission in NEUTRAL, as equipped.

Apply and hold the brake pedal. The brake pedal must remain applied throughout the parking brake cable tension release process.

Press and hold down the electronic park brake (EPB) switch for approximately 5 seconds.

Observe the PARK BRAKE lamp on the instrument cluster.

When the PARK BRAKE lamp flashes, release, then immediately press and release the EPB switch. The parking brake cable tension is fully released.

Release the brake pedal."​

 

[OR VietVet]

What's "brake service mode?" Never heard of it. What year? Does it have the pad life monitor?

Yea, with the electronic park brake system, in order to work on the rear brakes, they have to be put in "brake service mode" in order to "service" the brakes.

 

[GMgarbage]

But if i am just doing the fronts do i need to put it in service mode?

 

[Silverado4x4]

I would put it in service mode. I don't know why you want to do just the front, I always do both even if the rear doesn't need it. Doing just the front the pads may have a different braking material then the rear using another brand for the front and not have the same braking power so you may notice different stopping power.and distance.

 

[Antonm]

I would put it in service mode. I don't know why you want to do just the front, I always do both even if the rear doesn't need it. Doing just the front the pads may have a different braking material then the rear using another brand for the front and not have the same braking power so you may notice different stopping power.and distance.

Because replacing stuff that doesn't need replacing is just wasting money, time , and effort ,,, that's why.

And no, you will not notice a difference in braking as the front brakes do 80%+ of all breaking anyway. The rear brakes are pretty much there to keep the vehicle pointed in a straight line while braking and the traction control system uses them when it senses a loss of traction.

If fact the harder you brake , and the more weight is transferred to to the front end, the rear brake pressure is actually reduced proportionally to keep the rear tire from locking up.

Older cars (like 80's and 90's) had a mechanical rear ride high portioning valve , more modern cars use the ABS system to accomplish the rear brake pressure reduction under hard braking.

I'm guessing some dealer (or other mechanic) that was trying to upsell repairs to make more money told you the crap mentioned above. Unfortunately misleading (or even straight up lying to) the customers in not a new concept in the vehicle service industry.
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[Antonm]

But if i am just doing the fronts do i need to put it in service mode?

On the Tahoe IDK, but on my wife's previous SUV (a Mercedes GL450 that also had electronic actuated parking brakes), I replaced the front brakes on that without putting it in service mode twice while we owned it.

Had this thread not come around, I wouldn't have thought twice about putting the Tahoe in service mode when doing just front brakes, but if you find out something otherwise, please come back and lets us know.
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[Silverado4x4]

Because replacing stuff that doesn't need replacing is just wasting money, time , and effort ,,, that's why.

And no, you will not notice a difference in braking as the front brakes do 80%+ of all breaking anyway. The rear brakes are pretty much there to keep the vehicle pointed in a straight line while braking and the traction control system uses them when it senses a loss of traction.

If fact the harder you brake , and the more weight is transferred to to the front end, the rear brake pressure is actually reduced proportionally to keep the rear tire from locking up.

Older cars (like 80's and 90's) had a mechanical rear ride high portioning valve , more modern cars use the ABS system to accomplish the rear brake pressure reduction under hard braking.

I'm guessing some dealer (or other mechanic) that was trying to upsell repairs to make more money told you the crap mentioned above. Unfortunately misleading (or even straight up lying to) the customers in not a new concept in the vehicle service industry.
...

FYI I always did my own brakes never someone else and iam quite aware of how the braking system works.