GMC Lemon Law Attorney

Yes, the GMC Sierra's 8-speed and 10-speed transmission shudder is one of the most prevalent lemon law claims in California. General Motors has issued multiple technical service bulletins for this issue, recommending transmission fluid flushes and torque converter replacements, but many Sierra owners report the shudder returning after each repair attempt. Under California's Song-Beverly Consumer Warranty Act, if the transmission vibration persists after a reasonable number of repair visits, you are entitled to a vehicle repurchase or replacement. Lion Lemon has handled hundreds of GM transmission shudder cases and can evaluate your Sierra claim at no cost.

AFM and DFM lifter failures in GMC Sierra trucks equipped with the 5.3L and 6.2L V8 engines are absolutely covered under California Lemon Law. This defect causes misfires, reduced power, and a distinctive ticking noise that typically requires replacing all lifters and often the camshaft, a repair that can take weeks to complete. Each time your Sierra is in the shop for this repair, those days count toward the 30-day out-of-service threshold under the Song-Beverly Act. If the lifter problem recurs after replacement or if the extended shop time exceeds 30 cumulative days, you have strong grounds for a lemon law buyback.

The MultiPro tailgate is a flagship feature of the GMC Sierra, and persistent failures can constitute a substantial impairment of the vehicle's use and value under California's Song-Beverly Consumer Warranty Act. When the power-fold mechanism stops working, latches fail to secure, or water intrusion damages electrical components, these are warranty defects that GMC is obligated to repair. If the dealer has been unable to permanently fix the tailgate after multiple attempts, particularly if the failures create safety concerns like an unsecured gate while towing, you may qualify for a lemon law buyback. Lion Lemon can assess whether your specific tailgate issues rise to the level required under California law.

California's Song-Beverly Consumer Warranty Act covers vehicles used primarily for personal, family, or household purposes, but it also protects commercial vehicles under certain circumstances. If your GMC Sierra or Canyon is used for a mix of personal and work tasks, as many trucks in California are, the key question is whether it was acquired primarily for personal use. Even if you occasionally haul work equipment or tow for business, your truck likely qualifies for lemon law protection. Lion Lemon can review your purchase documents and usage pattern to confirm your vehicle's eligibility under California law.

General Motors processes GMC lemon law claims through its legal department, which handles a high volume of cases due to the widespread transmission and AFM issues across its truck lineup. GM has a customer assistance program and BBB arbitration option, but California law does not require you to use either before filing a lemon law claim. In our experience, GM is more likely to offer reasonable settlements when confronted with thorough documentation including repair orders, communication logs, and independent inspection reports. Lion Lemon deals with GM's legal team regularly and knows how to build the strongest possible case for a full Sierra, Yukon, or Terrain buyback.