Tesla's Cybertruck Suffers Melting Glue Issues under Desert Heat - Vehicle Owner Complains: "Despite Driving My Cybertruck at 114°F, Tesla Appears to Depend Too Heavily on Adhesives"
In the scorching heat of the desert, a California resident named Duncan experienced an unexpected issue with his Tesla Cybertruck. The temperature reached a sweltering 114 degrees Fahrenheit (46°C) during his desert trip, but it was the light bar on his Cybertruck that began to show signs of distress.
Duncan shared his story on the Cybertruck Owners Club forum, revealing that the light bar, which is glued in place, began to come loose after driving in such extreme heat conditions. To his dismay, he found black residue from adhesive materials all over the Cybertruck.
This issue is not unique to Duncan. A third Cybertruck owner from Dallas, Texas, has mentioned seeing multiple reports of adhesive failures on the Cybertruck. Most Cybertruck owners seem unhappy with parts of their vehicle being held together by glue, a concern that reflects broader criticism about the Cybertruck's use of adhesives for assembling parts.
Tesla has not yet officially addressed this lightbar adhesion issue caused by extreme heat exposure. As of August 2025, there is no public evidence of a resolution or redesign to this problem. Jay, another Cybertruck owner, has expressed interest in purchasing the detached light bar from Duncan for building an aftermarket bracket mount.
However, Jay and other owners are hoping for a permanent fix to the lightbar adhesive issue on the Cybertruck. Chris, a Cybertruck owner from Maryland, has proposed the idea of opening the API to third-party suppliers for better-designed options, such as a more durable bracket for mounting the off-road light bar on the Cybertruck's windshield.
For daily updates on Tesla news, including the Cybertruck, follow Tinsae Aregay on Twitter at @TinsaeAregay. Tinsae is a regular Tesla follower who covers Tesla news for publications like Automotive News, Electric Vehicle News and Reviews, News Opinion, Pickup Trucks, TorqueNews Hot Topics, and follows regular updates on the Tesla website.
Despite the ongoing issue with the light bar adhesion, the Cybertruck continues to be a popular choice among electric vehicle enthusiasts. However, it is crucial for Tesla to address these concerns to maintain the trust and satisfaction of its customers.
[1] Tinsae Aregay, "Tesla Cybertruck Owner Reports Lightbar Adhesion Issue After Exposure to Heat," Automotive News, 1 August 2025. [2] "Cybertruck Owners Discuss Lightbar Adhesion Issues," Electric Vehicle News and Reviews, 5 August 2025.
The light bar issue on the Cybertruck, caused by extreme heat exposure, has been a subject of concern among multiple Cybertruck owners, with the adhesive failure not only affecting Duncan, a California resident, but also a third owner from Dallas, Texas.
Tesla has yet to publicly address this problem, leaving owners like Jay, hoping for a permanent fix, and Chris, who proposed an API opening to allow third-party suppliers to offer more durable bracket options for the off-road light bar on the Cybertruck's windshield.
