GM Releases Fix For 2022 GMC Sierra 1500 Brake Line Clearance Issue
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GM has released a new service update for the 2022 GMC Sierra 1500 related to rear brake line clearance issues.
The problem: certain units of the 2022 GMC Sierra 1500 may exhibit an issue wherein the rear brake lines contact the truck’s rear axle.
The hazards: contact between a vehicle’s brake lines and axle could result in damage to the brake line. To note, this is not explicitly stated in the new GM service update.
The fix: in order to address the brake line clearance issue, GM is instructing dealers and technicians to first inspect the GMC Sierra’s rear brake lines for clearance, as well as possible damage. If a brake line does not clear the axle, a new line may need to be installed. Both rear brake pipes, both on the left and right, may need to be replaced. The components required for this fix could include zip ties, two rear brake pipes, new bumper pieces, and finally, brake fluid.
Affected components: rear brake lines for the 2022 GMC Sierra 1500.
Affected vehicles: certain units of the 2022 GMC Sierra 1500 Limited and fully refreshed 2022 GMC Sierra 1500. Note that the GMC Sierra 1500 received a full model refresh for the 2022 model year, while units of the 2022 model-year GMC Sierra 1500 that were produced prior to the refresh are referred to under the “Limited” nomenclature. It’s also worth noting that this particular GM Service update also applies to units of the refreshed 2022 Chevy Silverado 1500 and pre-refresh 2022 Chevy Silverado 1500.
Number of affected units: it’s unknown at this time exactly how many units of the 2022 GMC Sierra 1500 are affected by this new GM service update.
Owners should: owners of affected GM vehicles can contact GMC directly with any concerns they may have regarding this service update using the contact information listed below.
Contacts:
- GM Service Update number: N222362040
- GMC U.S. Customer Service: 1-800-462-8782
As a reminder, the 2022 GMC Sierra 1500 was offered with four engine options, including the turbocharged 2.7L I4 L3B gasoline engine, atmospheric 5.3L V8 L84 gasoline engine, atmospheric 6.2L V8 L87 gasoline engine, and finally, the 3.0L I6 LM2 turbodiesel Duramax. The GM T1 platform provides the bones, while GMC Sierra production takes place at the GM Fort Wayne plant in Indiana and GM Silao plant in Mexico.
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