77 replies to this topic

[buckland]

Here's a weird one. I'll try to be coherent but just off the phone with dealer.  I ordered a new diesel longbed Colorado and was very excited about putting the 2011 Eagle camper on. When I ordered the truck they agreed to swap out tires for Cooper AT/3 255 65 17. The Cooper website said they fit as did three tire places. I got a call from the dealer today saying my new truck was ready but that they have to keep the passenger tires on the truck.... that's what?.... They said there is one one ....just one tire that can be on the truck. Nothing else. All over the world...all people have to use the same tire. They claim none of the computer electronics will work if the diameter of the tire is slightly changed (yet their spare is 16"?). Has anyone heard of such a thing? One tire the world over? I went to this site

 

http://us.coopertire...ption= LT&tab=0

 

Does anyone have a 2016 Colorado and what tires are on yours?!

Edited by buckland, 29 April 2016 - 06:47 PM.

[Stalking Light]

What electronics are they talking about? Speedo and odometer are effected by tire diameter but I doubt the radio is. [emoji6]

[buckland]

They mentioned BCIM, PSM and the ABS and a few others.

[Bill D]

DIRECT VS. INDIRECT Direct Systems
attach a pressure sensor/transmitter to the vehicle's wheels. An in-vehicle receiver warns the driver if the pressure in any tire falls below a predetermined level. Direct systems are typically more accurate and reliable and most are able to indicate which tire is under-inflated.  Indirect Systems
use the vehicle's anti-lock braking system's wheel speed sensors to compare the rotational speed of one tire versus the others. If a tire is low on pressure, it will roll at a different number of revolutions per mile than the other three and alert the vehicle's on-board computer. Indirect systems (except for the TPMS on several 2009+ Audi models and 2010+ Volkswagen models) are unable to generate accurate readings in cases where all four tires are losing pressure at the same rate, such as the effects of time and temperature.

 

If you are replacing all 4 tires with different sizes vs. OEM your systems will be impacted, so the dealer is correct.  You should understand how your system is being impacted.  However a deal is a deal and you should still be getting your tires.

 

I suggest stilling with the OEM sizes, or understand what is happening when you deviate from the OEM size.

Basically your speedometer and odometer readings will be impacted.  ABS and tire pressure etc are only impacted if your tires are of varying sizes.

Edited by Bill D, 29 April 2016 - 07:30 PM.

[Stalking Light]

I have slightly larger than stock tires on my 2015 Tacoma and ABS  and TPMS work fine. Not sure what BCIM and PSM are, though.

[buckland]

TPMS Tire pressure...whoops.

Dealer says I void warranty on all the sensors if I use different tires! 

[Stalking Light]

I'd drop a line to General Motors and ask them, sounds crazy.

[Stalking Light]

According to http://www.sizemytir...y/colorado#2016 255/65R17 are the correct size?

[buckland]

You've gotta a line to GM?!

[buckland]

That's what I got... here is an ad from Cooper too.

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