Does the 2012 Toyota Highlander have a timing belt or chain?

The 2012 Toyota Highlander has a timing chain. The expected cost for a Toyota Highlander timing chain tensioner replacement is between $2,045 and $2,523. Labor costs are priced between $1,797 and $2,264 while parts are priced between $258 and $270. You will come into many issues with an engine. You can have oil leaks and those need to be repaired as soon as possible. A gasket may be loose and that needs to be tightened up. A spark plug may pop off, causing engine issues. There could be excessive oil use, requiring the oil to be changed sooner than expected. A serious problem is the engine overheating. This may lead to fires and the vehicle exploding.