--- title: "Study Finds Nissan Titan Headlight Glare Is 615% Over IIHS Limit, But Still Not Breaking the Law" date: "2026-08-29" modified: "2026-08-29" authors: - name: "Stephen Edelstein" job_title: "Weekend Editor" link: "https://www.thedrive.com/authors/stephen-edelstein" url: "https://www.thedrive.com/news/study-finds-nissan-titan-headlight-glare-is-615-over-iihs-limit-but-still-not-breaking-the-law" categories: - "News" tags: - "Headlights" - "Nissan Titan" - "safety" --- # Study Finds Nissan Titan Headlight Glare Is 615% Over IIHS Limit, But Still Not Breaking the Law ![2024 Nissan Titan]() *\Nissan\* Headlight glare is a real problem that current regulations don't address. [A recent AAA study]() found that six of 10 U.S. drivers believe headlight glare is an issue when driving at night, and about three quarters said the problem has gotten worse in the last decade. Another study backs that up, showing that many cars and trucks produce excessive headlight glare—but are still okay from the feds' perspective. This study was conducted by eyewear company [Overnight Glasses](), but the methodology is well judged. Researchers used headlight-testing data on 257 models from the Insurance Institute for Highway Safety (IIHS), and compared that to vehicle height—because taller vehicles place headlights closer to other drivers' line of sight—to create an index of nighttime headlight glare. ![2021 BMW X5 xDrive45e]() *BMW* If you've scanned the IIHS ratings when shopping for a new car, you know that some models fall well short of the mark in the insurance industry org's headlight tests. One of those is the second-generation (2017-2024) [Nissan Titan](), which produced headlight glare 615.1% above what the IIHS considers a safe limit. Note that this is the worst case among 16 different headlight versions the IIHS tested over the second-gen Titan's production run. The Titan was ranked the worst overall for headlight glare in the study, even though the [BMW]() X5's headlights produced even more glare, at 677.8% above the IIHS-sanctioned limit (that's based on 12 headlight variants from the same spread of model years as the Titan). But because this study also factors in height, and the X5 isn't as tall as the Titan, it received a better index score of 95.6, compared to the [Nissan's]() 100. ![The 2024 Chevrolet Silverado ZR2 Bison on a wooded off-road trail]() *Chevrolet* Consideration of vehicle height as well as raw glare produced by too-bright headlights meant that the ranks were mostly populated with full-size pickup trucks. The [Chevrolet]() Silverado 1500 and [Ram]() 1500 were right behind the Titan in second and third, respectively. The GMC Sierra 1500 was fifth, although interestingly the [Ford]() F-150 was 10th, with a lower glare index than the Edge, [Lincoln]() Nautilus, and [Kia]() Sedona. A key point emphasized here is that all of these vehicles meet federal standards—you wouldn't be able to buy them if they didn't. As IIHS tests show, federal rules are woefully inadequate both for addressing glare and ensuring that headlights actually provide adequate nighttime illumination. Automakers [don't feel the need]() to address this because not only do they not have to, but because the current rules don't allow much leeway for new lighting technology (although the latter [is beginning to change]()). ## Author Stephen has always been passionate about cars, and managed to turn that passion into a career as a freelance automotive journalist. When he's not handling weekend coverage for The Drive, you can find him looking for a new book to read. ### Author social links [Twitter]()