Carl’s Jr. just fired a direct shot at one of its oldest burger rivals. The chain, owned by Nashville-based CKE Restaurants, launched a campaign called “Pass on Jack” on June 23, 2026. It rewards loyalty members who prove they drove past a Jack in the Box to reach a Carl’s Jr. with a free Sourdough Star burger.
Simple enough. Customers upload a GPS route screenshot or other evidence through the Carl’s Jr. app. Qualifying submissions earn the reward, redeemable until July 7. The move comes as both brands fight for traffic in a tough market.
“When hunger strikes on a road trip, it’s tempting to pull over at the first burger joint you see,” said Paz Romero, VP of brand marketing for Carl’s. “This summer, we know our loyal fans and new customers are bound to drive by a Carl’s Jr., so we want to reward them for stopping at the best burger option on the road.” The statement appeared in a Yahoo Finance article that drew from reporting by Nation’s Restaurant News.
The rivalry runs deep. Robert Peterson opened the first Jack in the Box in San Diego in 1951. Five years later Carl and Margaret Karcher launched Carl’s Jr. in Anaheim after starting with a hot dog cart and barbecue stand. Both chains grew up in California. They still dominate the state’s fast-food scene.
Jack in the Box counts 938 locations in California. That equals 44 percent of its more than 2,100 total units. Carl’s Jr. operates 619 of its 992 U.S. stores there, or 63.4 percent. The numbers come from data compiled by Technomic and cited in the Nation’s Restaurant News report. California’s high costs and regulatory burdens hit both operators hard.
Consumers cut back on restaurant visits last year. Fast-food traffic suffered across the board. Carl’s U.S. system sales dropped 6 percent. The chain closed nearly 4 percent of its domestic locations. Yet it expanded internationally, growing its store count 6.9 percent. Jack in the Box saw sales fall 4.3 percent and closed 2.5 percent of its U.S. restaurants. The chain operates under an interim CEO, Mark King.
These pressures explain the aggression. When visits shrink, chains steal share any way they can. Carl’s Jr. chose a targeted loyalty play over broad discounts. The Sourdough Star itself returned recently as a limited-time item. Charbroiled patty, two bacon strips, classic sauce, grilled onions, melted American cheese, lettuce, tomato and mayo on toasted sourdough. The burger gives the reward real appeal.
But this isn’t Carl’s first marketing pivot. The brand spent years dialing back its once-signature risqué ads. Remember the Paris Hilton car-wash spot from 2005? It drew complaints and calls for censorship. By 2025 the chain had returned to bolder tactics. A Super Bowl-adjacent social campaign featured influencer Alix Earle. Then came an AI-enhanced revival of the Hilton creative, reported by Adweek in February 2026.
The “Pass on Jack” effort feels different. Less shock value. More direct competitor call-out. It taps into road-trip frustration and loyalty mechanics that have grown popular across quick-service restaurants. Upload proof. Get free food. The barrier stays low. The brand still controls who redeems.
Jack in the Box has not publicly responded. Its focus remains on stabilizing sales and navigating leadership transition. Both operators continue to test technology elsewhere. Presto’s drive-through AI now works with Carl’s Jr., Hardee’s and expanding tests at Dairy Queen, according to a Wall Street Journal report from April 2026. Efficiency matters when labor and real-estate costs climb.
The campaign highlights a larger truth. Same-store sales pressure forces creativity. Traditional price wars lose power when customers visit less often. Loyalty programs that reward specific behaviors offer precision. Carl’s Jr. bets that enough drivers already pass its locations on highways and surface streets. Why not turn that geography into an advantage?
Early reaction on X mixed amusement with skepticism. One user recalled old Carl’s ads while noting the chain’s willingness to name rivals outright. Another post referenced a TV spot taking aim at Wendy’s. The brand clearly feels comfortable in the ring.
Success will show in redemption rates and incremental traffic. If the program pulls customers who otherwise would have stopped at Jack in the Box, it succeeds. If it merely subsidizes existing loyalists, the impact fades quickly. Either way, the move signals heightened competitive intensity in the Western U.S. burger segment.
Fast-food chains have long borrowed from each other’s playbooks. Value menus, breakfast expansions, digital ordering. Direct rival baiting remains rarer. Carl’s Jr. decided the moment called for it. Hunger on the road meets brand loyalty. The GPS screenshot decides the winner.
Whether this tactic spreads to other categories remains to be seen. For now it gives Carl’s Jr. something fresh to talk about during summer travel season. And it puts Jack in the Box squarely in the crosshairs. Short, direct, and measurable. That’s the bet.
WebProNews is an iEntry Publication