Toyota Tundra Radiator and Horn Mounts Cracking – TSB
Toyota has released a Technical Service Bulletin for a condition where cracking develops around the horn and/or radiator mounting brackets in 2007-2012 Tundra vehicles.Toyota is recommending a fix of adding additional support brackets to reinforce the horn and radiator mounting location areas. The TSB, released on February 2, 2012, says that cracking may occur under continuous or frequent off highway driving conditions. The new support brackets have been developed to reinforce the horn and radiator mounting location areas and address this condition. The TSB number is T-SB-0032-12.
The repair consists of removing the parts/plastic covers around the horn and radiator. Then you will need to drill holes for the support brackets to be attached. Make sure to paint the area around the holes with an automotive primer to avoid rust from forming.Here’s the TSB process in a nutshell:
Step 1:Remove both horn assemblies from the vehicle.
Step 2: Drill out the spot welds that attach the broken horn bracket reinforcement to the upper radiator core support as shown below. Replace the horn assembly and add support brackets.
Step 3:Remove the plastic radiator side covers.
Step 4:Add new support brackets to sides of radiator.
If you own a Tundra within these models years, you are encouraged to check with your local Toyota service department. As with any TSB’s the repair is covered within Toyota’s Comprehensive Warranty, 3 years or 36,000 miles whichever occurs first.
Filed Under: Tundra News