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117 Posts
2014 ELR. Sealant had expired, replaced with part # 23315606, $31.45, from my dealer.
I know there are horror stories about TPMs being fouled by the use of sealant. I can offer my experience: 2015 Nissan Leaf, Continental Mobility Kit, used it for a nail hole leak. Worked exactly as advertised...had to drive 1-2 miles to cause the sealant to "sling" around inside the tire, find the hole, and plug it up. Stayed plugged, no pressure loss, for about a week. Had the tire removed, cleaned (water hosed out...sealant is water based), ditto for TPM sensor. Tire lasted another 5k miles w/o issues. Zero issues with the tire pressure monitor.
I don't know the chemical composition of the GM sealant, hope it's the same. I'll only use it in an emergency anyway!
YMMV!
I know there are horror stories about TPMs being fouled by the use of sealant. I can offer my experience: 2015 Nissan Leaf, Continental Mobility Kit, used it for a nail hole leak. Worked exactly as advertised...had to drive 1-2 miles to cause the sealant to "sling" around inside the tire, find the hole, and plug it up. Stayed plugged, no pressure loss, for about a week. Had the tire removed, cleaned (water hosed out...sealant is water based), ditto for TPM sensor. Tire lasted another 5k miles w/o issues. Zero issues with the tire pressure monitor.
I don't know the chemical composition of the GM sealant, hope it's the same. I'll only use it in an emergency anyway!
YMMV!