# Service bulletins for the 2018 Chevrolet Impala A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned. 882 bulletins from NHTSA, as of 2026-10-19. - [PIT5698F](/bulletins/11037555.md), 2026-09-30, Service bulletin: UNKNOWN OR OTHER. This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it. - [PIP4902W](/bulletins/11037253.md), 2026-09-10, Service bulletin: UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. - [PIT5099J](/bulletins/11035340.md), 2026-07-29, Service bulletin: UNKNOWN OR OTHER. PI to help diagnose A/C concern - [PIT6247B](/bulletins/11032577.md), 2026-05-11, Service bulletin: UNKNOWN OR OTHER. This Preliminary information communicates direction to find information at www.gmupfitter.com for Police and Special Service Vehicles. - [PIT3271Q](/bulletins/11030974.md), 2026-04-07, Service bulletin: UNKNOWN OR OTHER. This preliminary information communicates information about how to determine if a wheel and tires size change is available. - [PIP6104](/bulletins/11030092.md), 2026-03-17, Service bulletin: UNKNOWN OR OTHER. This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect. - [PIP4902V](/bulletins/11030091.md), 2026-03-17, Service bulletin: UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. - [PIP4902U](/bulletins/11027601.md), 2026-01-13, Service bulletin: UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. - [25\-NA\-156](/bulletins/11026104.md), 2025-12-04, Service bulletin: WHEELS. This service bulletin provides information on Tire Sidewall Irregularities. - [00\-06\-01\-026R](/bulletins/11026017.md), 2025-12-03, Service bulletin: ENGINE. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage. - [PIT5214G](/bulletins/11025755.md), 2025-11-28, Service bulletin: UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further support. For any vehicles that remains unrepaired after being at the dealer for three days or more and a related bulletin or PI is not found, contact General Motors Technical Assistance Center for further support. - [23\-NA\-153](/bulletins/11024485.md), 2025-10-25, Service bulletin: ENGINE. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay. - [13598](/bulletins/11023091.md), 2025-09-10, Other: UNKNOWN OR OTHER. New Vehicle Monitoring Programs Section in IVH - [PIP4902T](/bulletins/11022084.md), 2025-08-22, Service bulletin: UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. - [PIT6247A](/bulletins/11022071.md), 2025-08-22, Service bulletin: UNKNOWN OR OTHER. This Preliminary information communicates direction to find information at www.gmupfitter.com for Police and Special Service Vehicles. - [PIC5650M](/bulletins/11021792.md), 2025-08-12, Service bulletin: UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, B3935, C0750, C0755, C0760, C0765, and/or C0775. - [15\-NA\-010](/bulletins/11020254.md), 2025-07-07, Service bulletin: ENGINE. This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states. - [PIT6180A](/bulletins/11019823.md), 2025-06-29, Service bulletin: UNKNOWN OR OTHER. This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog. - [PIP4902S](/bulletins/11019693.md), 2025-06-24, Service bulletin: UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. - [N252494770\-01](/bulletins/11019670.md), 2025-06-20, Service campaign: UNKNOWN OR OTHER. Amendments to the Song\-Beverly Act \(SBA\) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the affected vehicles will be mailed an owner’s manual and warranty insert containing this information in English and Spanish. - [N252494770](/bulletins/11019591.md), 2025-06-17, Service campaign: UNKNOWN OR OTHER. Amendments to the Song\-Beverly Act \(SBA\) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the applicable vehicles will be mailed an owner’s manual and warranty insert containing this information in English and Spanish. - [PI0281L](/bulletins/11019516.md), 2025-06-12, Service bulletin: STEERING; POWER TRAIN; SUSPENSION. This preliminary informational \(PI\) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers. - [25\-NA\-100](/bulletins/11019503.md), 2025-06-12, Service bulletin: ENGINE. This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and register their vehicle in a California Emission State may be entitled to the 7 year, 70,000\-mile Emission Select State Component Limited Warranty. - [PIT5074R](/bulletins/11019074.md), 2025-06-04, Service bulletin: UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician about the use of J\-35616\-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads. - [PIT5074R](/bulletins/11019073.md), 2025-06-04, Service bulletin: UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician about the use of J\-35616\-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads. More: [the next page](/v1/vehicles/2018_chevrolet_impala/bulletins?cursor=2025-06-04_11019073) (JSON) JSON: [/v1/vehicles/2018_chevrolet_impala/bulletins](/v1/vehicles/2018_chevrolet_impala/bulletins) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%202018%20Chevrolet%20Impala&page=https%3A%2F%2Fopen.wenmarpro.com%2Fmakes%2Fchevrolet%2Fimpala%2F2018%2Fbulletins&vehicle=2018%20Chevrolet%20Impala)